diff --git a/ltfatpy/comp/comp_dct.c b/ltfatpy/comp/comp_dct.c
index 22c8596f7f5f202e73003a70781a845056b42a33..3be0ac99c12883d790aa56ededc688a88e1fc3ed 100644
--- a/ltfatpy/comp/comp_dct.c
+++ b/ltfatpy/comp/comp_dct.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -1821,7 +1821,7 @@ static PyObject *__pyx_tuple__18;
 static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 
-/* "ltfatpy/comp/comp_dct.pyx":71
+/* "ltfatpy/comp/comp_dct.pyx":75
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dct_cd(const double complex[:] f, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1836,7 +1836,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_cd(__Pyx_memviewslice
   Py_ssize_t __pyx_t_2;
   __Pyx_RefNannySetupContext("comp_dct_cd", 0);
 
-  /* "ltfatpy/comp/comp_dct.pyx":74
+  /* "ltfatpy/comp/comp_dct.pyx":78
  *                  const ltfatInt W, const dct_kind kind, double complex[:] out):
  *     """ Internal function, do not use it """
  *     dct_cd(& f[0], L, W, & out[0], kind)             # <<<<<<<<<<<<<<
@@ -1847,7 +1847,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_cd(__Pyx_memviewslice
   __pyx_t_2 = 0;
   dct_cd((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), __pyx_v_L, __pyx_v_W, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_2 * __pyx_v_out.strides[0]) )))), __pyx_v_kind);
 
-  /* "ltfatpy/comp/comp_dct.pyx":71
+  /* "ltfatpy/comp/comp_dct.pyx":75
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dct_cd(const double complex[:] f, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1862,7 +1862,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_cd(__Pyx_memviewslice
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_dct.pyx":80
+/* "ltfatpy/comp/comp_dct.pyx":84
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dct_d(const double[:] f, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1877,7 +1877,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_d(__Pyx_memviewslice
   Py_ssize_t __pyx_t_2;
   __Pyx_RefNannySetupContext("comp_dct_d", 0);
 
-  /* "ltfatpy/comp/comp_dct.pyx":83
+  /* "ltfatpy/comp/comp_dct.pyx":87
  *                 const ltfatInt W, const dct_kind kind, double[:] out):
  *     """ Internal function, do not use it """
  *     dct_d(&f[0], L, W, & out[0], kind)             # <<<<<<<<<<<<<<
@@ -1888,7 +1888,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_d(__Pyx_memviewslice
   __pyx_t_2 = 0;
   dct_d((&(*((double *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), __pyx_v_L, __pyx_v_W, (&(*((double *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_2 * __pyx_v_out.strides[0]) )))), __pyx_v_kind);
 
-  /* "ltfatpy/comp/comp_dct.pyx":80
+  /* "ltfatpy/comp/comp_dct.pyx":84
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dct_d(const double[:] f, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1903,7 +1903,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_d(__Pyx_memviewslice
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_dct.pyx":89
+/* "ltfatpy/comp/comp_dct.pyx":93
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_dct(f, type):             # <<<<<<<<<<<<<<
@@ -1936,66 +1936,66 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
   __Pyx_RefNannySetupContext("comp_dct", 0);
   __Pyx_INCREF(__pyx_v_f);
 
-  /* "ltfatpy/comp/comp_dct.pyx":98
+  /* "ltfatpy/comp/comp_dct.pyx":102
  *     """
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L4_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_1 = __pyx_t_5;
   __pyx_L4_bool_binop_done:;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_dct.pyx":99
+    /* "ltfatpy/comp/comp_dct.pyx":103
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")             # <<<<<<<<<<<<<<
  *     if type not in {1, 2, 3, 4}:
  *         raise TypeError("type should be 1, 2, 3 or 4")
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 99, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(0, 99, __pyx_L1_error)
+    __PYX_ERR(0, 103, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_dct.pyx":98
+    /* "ltfatpy/comp/comp_dct.pyx":102
  *     """
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
@@ -2004,7 +2004,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  */
   }
 
-  /* "ltfatpy/comp/comp_dct.pyx":100
+  /* "ltfatpy/comp/comp_dct.pyx":104
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:             # <<<<<<<<<<<<<<
@@ -2013,32 +2013,32 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  */
   __Pyx_INCREF(__pyx_v_type);
   __pyx_t_2 = __pyx_v_type;
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L7_bool_binop_done;
   }
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_2, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_2, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L7_bool_binop_done;
   }
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_3, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_3, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L7_bool_binop_done;
   }
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_4, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_4, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_t_1 = __pyx_t_5;
   __pyx_L7_bool_binop_done:;
@@ -2046,20 +2046,20 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
   __pyx_t_5 = (__pyx_t_1 != 0);
   if (__pyx_t_5) {
 
-    /* "ltfatpy/comp/comp_dct.pyx":101
+    /* "ltfatpy/comp/comp_dct.pyx":105
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:
  *         raise TypeError("type should be 1, 2, 3 or 4")             # <<<<<<<<<<<<<<
  * 
  *     dct_type = {1: DCTI, 2: DCTII, 3: DCTIII, 4: DCTIV}
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 105, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(0, 101, __pyx_L1_error)
+    __PYX_ERR(0, 105, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_dct.pyx":100
+    /* "ltfatpy/comp/comp_dct.pyx":104
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:             # <<<<<<<<<<<<<<
@@ -2068,89 +2068,89 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  */
   }
 
-  /* "ltfatpy/comp/comp_dct.pyx":103
+  /* "ltfatpy/comp/comp_dct.pyx":107
  *         raise TypeError("type should be 1, 2, 3 or 4")
  * 
  *     dct_type = {1: DCTI, 2: DCTII, 3: DCTIII, 4: DCTIV}             # <<<<<<<<<<<<<<
  * 
  *     if f.ndim > 1:
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DCTI); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DCTI); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, __pyx_int_1, __pyx_t_3) < 0) __PYX_ERR(0, 103, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_int_1, __pyx_t_3) < 0) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DCTII); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DCTII); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, __pyx_int_2, __pyx_t_3) < 0) __PYX_ERR(0, 103, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_int_2, __pyx_t_3) < 0) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DCTIII); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DCTIII); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, __pyx_int_3, __pyx_t_3) < 0) __PYX_ERR(0, 103, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_int_3, __pyx_t_3) < 0) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DCTIV); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DCTIV); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, __pyx_int_4, __pyx_t_3) < 0) __PYX_ERR(0, 103, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_int_4, __pyx_t_3) < 0) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_v_dct_type = ((PyObject*)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "ltfatpy/comp/comp_dct.pyx":105
+  /* "ltfatpy/comp/comp_dct.pyx":109
  *     dct_type = {1: DCTI, 2: DCTII, 3: DCTIII, 4: DCTIV}
  * 
  *     if f.ndim > 1:             # <<<<<<<<<<<<<<
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
 
-    /* "ltfatpy/comp/comp_dct.pyx":106
+    /* "ltfatpy/comp/comp_dct.pyx":110
  * 
  *     if f.ndim > 1:
  *         if f.ndim > 2:             # <<<<<<<<<<<<<<
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_5) {
 
-      /* "ltfatpy/comp/comp_dct.pyx":107
+      /* "ltfatpy/comp/comp_dct.pyx":111
  *     if f.ndim > 1:
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))             # <<<<<<<<<<<<<<
  *         L = f.shape[0]
  *         W = f.shape[1]
  */
-      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(__pyx_v_f);
       __Pyx_GIVEREF(__pyx_v_f);
       PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_f);
-      __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_7 = __Pyx_PyInt_SubtractObjC(__pyx_t_6, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyInt_SubtractObjC(__pyx_t_6, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_int_2);
       __Pyx_GIVEREF(__pyx_int_2);
@@ -2158,12 +2158,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
       __Pyx_GIVEREF(__pyx_t_7);
       PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_7);
       __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_6, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_6, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_axis, __pyx_t_7) < 0) __PYX_ERR(0, 107, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_axis, __pyx_t_7) < 0) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 107, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 111, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2171,7 +2171,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
       __Pyx_DECREF_SET(__pyx_v_f, __pyx_t_7);
       __pyx_t_7 = 0;
 
-      /* "ltfatpy/comp/comp_dct.pyx":106
+      /* "ltfatpy/comp/comp_dct.pyx":110
  * 
  *     if f.ndim > 1:
  *         if f.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2180,58 +2180,58 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  */
     }
 
-    /* "ltfatpy/comp/comp_dct.pyx":108
+    /* "ltfatpy/comp/comp_dct.pyx":112
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]             # <<<<<<<<<<<<<<
  *         W = f.shape[1]
  *         f_combined = f.reshape(L * W, order='F')
  */
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 108, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 112, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_7, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 108, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_7, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 112, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 108, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 112, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_v_L = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_dct.pyx":109
+    /* "ltfatpy/comp/comp_dct.pyx":113
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]
  *         W = f.shape[1]             # <<<<<<<<<<<<<<
  *         f_combined = f.reshape(L * W, order='F')
  *     else:
  */
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_4, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_4, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_7); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_7); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __pyx_v_W = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_dct.pyx":110
+    /* "ltfatpy/comp/comp_dct.pyx":114
  *         L = f.shape[0]
  *         W = f.shape[1]
  *         f_combined = f.reshape(L * W, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         L = f.shape[0]
  */
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 110, __pyx_L1_error)
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 110, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2239,7 +2239,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     __pyx_v_f_combined = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "ltfatpy/comp/comp_dct.pyx":105
+    /* "ltfatpy/comp/comp_dct.pyx":109
  *     dct_type = {1: DCTI, 2: DCTII, 3: DCTIII, 4: DCTIV}
  * 
  *     if f.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2249,7 +2249,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     goto __pyx_L11;
   }
 
-  /* "ltfatpy/comp/comp_dct.pyx":112
+  /* "ltfatpy/comp/comp_dct.pyx":116
  *         f_combined = f.reshape(L * W, order='F')
  *     else:
  *         L = f.shape[0]             # <<<<<<<<<<<<<<
@@ -2257,16 +2257,16 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  *         f_combined = f
  */
   /*else*/ {
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 116, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 116, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 116, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_v_L = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_dct.pyx":113
+    /* "ltfatpy/comp/comp_dct.pyx":117
  *     else:
  *         L = f.shape[0]
  *         W = 1             # <<<<<<<<<<<<<<
@@ -2275,7 +2275,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  */
     __pyx_v_W = 1;
 
-    /* "ltfatpy/comp/comp_dct.pyx":114
+    /* "ltfatpy/comp/comp_dct.pyx":118
  *         L = f.shape[0]
  *         W = 1
  *         f_combined = f             # <<<<<<<<<<<<<<
@@ -2287,59 +2287,59 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
   }
   __pyx_L11:;
 
-  /* "ltfatpy/comp/comp_dct.pyx":116
+  /* "ltfatpy/comp/comp_dct.pyx":120
  *         f_combined = f
  * 
  *     if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
  *         res = np.ndarray((L * W), dtype=np.float64)
  *         comp_dct_d(f_combined, L, W, dct_type[type], res)
  */
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 116, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 116, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 116, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 116, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_4 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 116, __pyx_L1_error)
+  __pyx_t_4 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 116, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   if (__pyx_t_5) {
 
-    /* "ltfatpy/comp/comp_dct.pyx":117
+    /* "ltfatpy/comp/comp_dct.pyx":121
  * 
  *     if f.dtype.type == np.float64:
  *         res = np.ndarray((L * W), dtype=np.float64)             # <<<<<<<<<<<<<<
  *         comp_dct_d(f_combined, L, W, dct_type[type], res)
  *     else:
  */
-    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_float64); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_float64); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_dtype, __pyx_t_6) < 0) __PYX_ERR(0, 117, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_dtype, __pyx_t_6) < 0) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_4); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_4); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -2347,7 +2347,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     __pyx_v_res = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_dct.pyx":118
+    /* "ltfatpy/comp/comp_dct.pyx":122
  *     if f.dtype.type == np.float64:
  *         res = np.ndarray((L * W), dtype=np.float64)
  *         comp_dct_d(f_combined, L, W, dct_type[type], res)             # <<<<<<<<<<<<<<
@@ -2355,14 +2355,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  *         res = np.ndarray((L * W), dtype=np.complex128)
  */
     __pyx_t_9 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_f_combined);
-    if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 118, __pyx_L1_error)
-    __pyx_t_6 = __Pyx_PyDict_GetItem(__pyx_v_dct_type, __pyx_v_type); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 118, __pyx_L1_error)
+    if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 122, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyDict_GetItem(__pyx_v_dct_type, __pyx_v_type); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_10 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_t_6)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_10 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_t_6)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __pyx_t_11 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_res);
-    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 118, __pyx_L1_error)
-    __pyx_t_6 = __pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_d(__pyx_t_9, __pyx_v_L, __pyx_v_W, __pyx_t_10, __pyx_t_11); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 118, __pyx_L1_error)
+    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 122, __pyx_L1_error)
+    __pyx_t_6 = __pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_d(__pyx_t_9, __pyx_v_L, __pyx_v_W, __pyx_t_10, __pyx_t_11); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __PYX_XDEC_MEMVIEW(&__pyx_t_9, 1);
     __pyx_t_9.memview = NULL;
@@ -2372,7 +2372,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     __pyx_t_11.data = NULL;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_dct.pyx":116
+    /* "ltfatpy/comp/comp_dct.pyx":120
  *         f_combined = f
  * 
  *     if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
@@ -2382,7 +2382,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     goto __pyx_L13;
   }
 
-  /* "ltfatpy/comp/comp_dct.pyx":120
+  /* "ltfatpy/comp/comp_dct.pyx":124
  *         comp_dct_d(f_combined, L, W, dct_type[type], res)
  *     else:
  *         res = np.ndarray((L * W), dtype=np.complex128)             # <<<<<<<<<<<<<<
@@ -2390,28 +2390,28 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  *     if W > 1:
  */
   /*else*/ {
-    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_6);
     __pyx_t_6 = 0;
-    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_dtype, __pyx_t_7) < 0) __PYX_ERR(0, 120, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_dtype, __pyx_t_7) < 0) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -2419,7 +2419,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     __pyx_v_res = __pyx_t_7;
     __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_dct.pyx":121
+    /* "ltfatpy/comp/comp_dct.pyx":125
  *     else:
  *         res = np.ndarray((L * W), dtype=np.complex128)
  *         comp_dct_cd(f_combined, L, W, dct_type[type], res)             # <<<<<<<<<<<<<<
@@ -2427,14 +2427,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  *         res = np.reshape(res, (L, W), order='F')
  */
     __pyx_t_12 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_f_combined);
-    if (unlikely(!__pyx_t_12.memview)) __PYX_ERR(0, 121, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyDict_GetItem(__pyx_v_dct_type, __pyx_v_type); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 121, __pyx_L1_error)
+    if (unlikely(!__pyx_t_12.memview)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyDict_GetItem(__pyx_v_dct_type, __pyx_v_type); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_10 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_t_7)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_10 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dct_kind(__pyx_t_7)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 121, __pyx_L1_error)
-    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_cd(__pyx_t_12, __pyx_v_L, __pyx_v_W, __pyx_t_10, __pyx_t_13); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 121, __pyx_L1_error)
+    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct_cd(__pyx_t_12, __pyx_v_L, __pyx_v_W, __pyx_t_10, __pyx_t_13); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __PYX_XDEC_MEMVIEW(&__pyx_t_12, 1);
     __pyx_t_12.memview = NULL;
@@ -2446,7 +2446,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
   }
   __pyx_L13:;
 
-  /* "ltfatpy/comp/comp_dct.pyx":122
+  /* "ltfatpy/comp/comp_dct.pyx":126
  *         res = np.ndarray((L * W), dtype=np.complex128)
  *         comp_dct_cd(f_combined, L, W, dct_type[type], res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2456,22 +2456,22 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
   __pyx_t_5 = ((__pyx_v_W > 1) != 0);
   if (__pyx_t_5) {
 
-    /* "ltfatpy/comp/comp_dct.pyx":123
+    /* "ltfatpy/comp/comp_dct.pyx":127
  *         comp_dct_cd(f_combined, L, W, dct_type[type], res)
  *     if W > 1:
  *         res = np.reshape(res, (L, W), order='F')             # <<<<<<<<<<<<<<
  *     return res
  */
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_7);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_7);
@@ -2479,7 +2479,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_3);
     __pyx_t_7 = 0;
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_res);
     __Pyx_GIVEREF(__pyx_v_res);
@@ -2487,10 +2487,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     __Pyx_GIVEREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 123, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_3, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 123, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_3, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -2498,7 +2498,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
     __Pyx_DECREF_SET(__pyx_v_res, __pyx_t_7);
     __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_dct.pyx":122
+    /* "ltfatpy/comp/comp_dct.pyx":126
  *         res = np.ndarray((L * W), dtype=np.complex128)
  *         comp_dct_cd(f_combined, L, W, dct_type[type], res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2507,7 +2507,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
  */
   }
 
-  /* "ltfatpy/comp/comp_dct.pyx":124
+  /* "ltfatpy/comp/comp_dct.pyx":128
  *     if W > 1:
  *         res = np.reshape(res, (L, W), order='F')
  *     return res             # <<<<<<<<<<<<<<
@@ -2517,7 +2517,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(PyObject *__pyx_v_f,
   __pyx_r = __pyx_v_res;
   goto __pyx_L0;
 
-  /* "ltfatpy/comp/comp_dct.pyx":89
+  /* "ltfatpy/comp/comp_dct.pyx":93
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_dct(f, type):             # <<<<<<<<<<<<<<
@@ -2577,11 +2577,11 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_8comp_dct_1comp_dct(PyObject *__pyx_sel
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_type)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_dct", 1, 2, 2, 1); __PYX_ERR(0, 89, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_dct", 1, 2, 2, 1); __PYX_ERR(0, 93, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_dct") < 0)) __PYX_ERR(0, 89, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_dct") < 0)) __PYX_ERR(0, 93, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -2594,7 +2594,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_8comp_dct_1comp_dct(PyObject *__pyx_sel
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_dct", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 89, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_dct", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 93, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_dct.comp_dct", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2613,7 +2613,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_8comp_dct_comp_dct(CYTHON_UNUSED PyObje
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("comp_dct", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(__pyx_v_f, __pyx_v_type, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 89, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_8comp_dct_comp_dct(__pyx_v_f, __pyx_v_type, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 93, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -15053,8 +15053,8 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 99, __pyx_L1_error)
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 111, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 131, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(1, 146, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(1, 149, __pyx_L1_error)
@@ -15070,25 +15070,25 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "ltfatpy/comp/comp_dct.pyx":99
+  /* "ltfatpy/comp/comp_dct.pyx":103
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")             # <<<<<<<<<<<<<<
  *     if type not in {1, 2, 3, 4}:
  *         raise TypeError("type should be 1, 2, 3 or 4")
  */
-  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_f_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_f_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "ltfatpy/comp/comp_dct.pyx":101
+  /* "ltfatpy/comp/comp_dct.pyx":105
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:
  *         raise TypeError("type should be 1, 2, 3 or 4")             # <<<<<<<<<<<<<<
  * 
  *     dct_type = {1: DCTI, 2: DCTII, 3: DCTIII, 4: DCTIV}
  */
-  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_type_should_be_1_2_3_or_4); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_type_should_be_1_2_3_or_4); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 105, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
@@ -15440,22 +15440,22 @@ PyMODINIT_FUNC PyInit_comp_dct(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_dct.pyx":61
+  /* "ltfatpy/comp/comp_dct.pyx":65
  * from __future__ import print_function, division
  * import cython
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, dct_kind, dct_cd, dct_d
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 61, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 65, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 61, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 65, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   /* "ltfatpy/comp/comp_dct.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/ltfatpy/comp/comp_dst.c b/ltfatpy/comp/comp_dst.c
index 9a7c8c9f153ab384dd30ddc77c295b85592c70bd..90e9168d227fb1fdedd6c32e09805d5bb66bdaa5 100644
--- a/ltfatpy/comp/comp_dst.c
+++ b/ltfatpy/comp/comp_dst.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -1821,7 +1821,7 @@ static PyObject *__pyx_tuple__18;
 static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 
-/* "ltfatpy/comp/comp_dst.pyx":72
+/* "ltfatpy/comp/comp_dst.pyx":76
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dst_cd(const double complex[:] f, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1836,7 +1836,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_cd(__Pyx_memviewslice
   Py_ssize_t __pyx_t_2;
   __Pyx_RefNannySetupContext("comp_dst_cd", 0);
 
-  /* "ltfatpy/comp/comp_dst.pyx":75
+  /* "ltfatpy/comp/comp_dst.pyx":79
  *                  const ltfatInt W, const dst_kind kind, double complex[:] out):
  *     """ Internal function, do not use it """
  *     dst_cd(&f[0], L, W, &out[0], kind)             # <<<<<<<<<<<<<<
@@ -1847,7 +1847,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_cd(__Pyx_memviewslice
   __pyx_t_2 = 0;
   dst_cd((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), __pyx_v_L, __pyx_v_W, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_2 * __pyx_v_out.strides[0]) )))), __pyx_v_kind);
 
-  /* "ltfatpy/comp/comp_dst.pyx":72
+  /* "ltfatpy/comp/comp_dst.pyx":76
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dst_cd(const double complex[:] f, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1862,7 +1862,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_cd(__Pyx_memviewslice
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_dst.pyx":81
+/* "ltfatpy/comp/comp_dst.pyx":85
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dst_d(const double[:] f, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1877,7 +1877,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_d(__Pyx_memviewslice
   Py_ssize_t __pyx_t_2;
   __Pyx_RefNannySetupContext("comp_dst_d", 0);
 
-  /* "ltfatpy/comp/comp_dst.pyx":84
+  /* "ltfatpy/comp/comp_dst.pyx":88
  *                 const ltfatInt W, const dst_kind kind, double[:] out):
  *     """ Internal function, do not use it """
  *     dst_d(&f[0], L, W, &out[0], kind)             # <<<<<<<<<<<<<<
@@ -1888,7 +1888,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_d(__Pyx_memviewslice
   __pyx_t_2 = 0;
   dst_d((&(*((double *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), __pyx_v_L, __pyx_v_W, (&(*((double *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_2 * __pyx_v_out.strides[0]) )))), __pyx_v_kind);
 
-  /* "ltfatpy/comp/comp_dst.pyx":81
+  /* "ltfatpy/comp/comp_dst.pyx":85
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dst_d(const double[:] f, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1903,7 +1903,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_d(__Pyx_memviewslice
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_dst.pyx":90
+/* "ltfatpy/comp/comp_dst.pyx":94
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_dst(f, type):             # <<<<<<<<<<<<<<
@@ -1936,66 +1936,66 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
   __Pyx_RefNannySetupContext("comp_dst", 0);
   __Pyx_INCREF(__pyx_v_f);
 
-  /* "ltfatpy/comp/comp_dst.pyx":99
+  /* "ltfatpy/comp/comp_dst.pyx":103
  *     """
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L4_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 99, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 103, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_1 = __pyx_t_5;
   __pyx_L4_bool_binop_done:;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_dst.pyx":100
+    /* "ltfatpy/comp/comp_dst.pyx":104
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")             # <<<<<<<<<<<<<<
  *     if type not in {1, 2, 3, 4}:
  *         raise TypeError("type should be 1, 2, 3 or 4")
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 100, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 104, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(0, 100, __pyx_L1_error)
+    __PYX_ERR(0, 104, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_dst.pyx":99
+    /* "ltfatpy/comp/comp_dst.pyx":103
  *     """
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
@@ -2004,7 +2004,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  */
   }
 
-  /* "ltfatpy/comp/comp_dst.pyx":101
+  /* "ltfatpy/comp/comp_dst.pyx":105
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:             # <<<<<<<<<<<<<<
@@ -2013,32 +2013,32 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  */
   __Pyx_INCREF(__pyx_v_type);
   __pyx_t_2 = __pyx_v_type;
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 105, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L7_bool_binop_done;
   }
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_2, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_2, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 105, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L7_bool_binop_done;
   }
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_3, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_3, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 105, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L7_bool_binop_done;
   }
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_4, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_4, Py_NE); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 105, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_t_1 = __pyx_t_5;
   __pyx_L7_bool_binop_done:;
@@ -2046,20 +2046,20 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
   __pyx_t_5 = (__pyx_t_1 != 0);
   if (__pyx_t_5) {
 
-    /* "ltfatpy/comp/comp_dst.pyx":102
+    /* "ltfatpy/comp/comp_dst.pyx":106
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:
  *         raise TypeError("type should be 1, 2, 3 or 4")             # <<<<<<<<<<<<<<
  * 
  *     dst_type = {1: DSTI, 2: DSTII, 3: DSTIII, 4: DSTIV}
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(0, 102, __pyx_L1_error)
+    __PYX_ERR(0, 106, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_dst.pyx":101
+    /* "ltfatpy/comp/comp_dst.pyx":105
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:             # <<<<<<<<<<<<<<
@@ -2068,89 +2068,89 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  */
   }
 
-  /* "ltfatpy/comp/comp_dst.pyx":104
+  /* "ltfatpy/comp/comp_dst.pyx":108
  *         raise TypeError("type should be 1, 2, 3 or 4")
  * 
  *     dst_type = {1: DSTI, 2: DSTII, 3: DSTIII, 4: DSTIV}             # <<<<<<<<<<<<<<
  * 
  *     if f.ndim > 1:
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DSTI); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DSTI); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, __pyx_int_1, __pyx_t_3) < 0) __PYX_ERR(0, 104, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_int_1, __pyx_t_3) < 0) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DSTII); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DSTII); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, __pyx_int_2, __pyx_t_3) < 0) __PYX_ERR(0, 104, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_int_2, __pyx_t_3) < 0) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DSTIII); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DSTIII); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, __pyx_int_3, __pyx_t_3) < 0) __PYX_ERR(0, 104, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_int_3, __pyx_t_3) < 0) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DSTIV); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_e_7ltfatpy_4comp_5ltfat_DSTIV); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_t_2, __pyx_int_4, __pyx_t_3) < 0) __PYX_ERR(0, 104, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_int_4, __pyx_t_3) < 0) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_v_dst_type = ((PyObject*)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "ltfatpy/comp/comp_dst.pyx":106
+  /* "ltfatpy/comp/comp_dst.pyx":110
  *     dst_type = {1: DSTI, 2: DSTII, 3: DSTIII, 4: DSTIV}
  * 
  *     if f.ndim > 1:             # <<<<<<<<<<<<<<
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
 
-    /* "ltfatpy/comp/comp_dst.pyx":107
+    /* "ltfatpy/comp/comp_dst.pyx":111
  * 
  *     if f.ndim > 1:
  *         if f.ndim > 2:             # <<<<<<<<<<<<<<
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_5) {
 
-      /* "ltfatpy/comp/comp_dst.pyx":108
+      /* "ltfatpy/comp/comp_dst.pyx":112
  *     if f.ndim > 1:
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))             # <<<<<<<<<<<<<<
  *         L = f.shape[0]
  *         W = f.shape[1]
  */
-      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(__pyx_v_f);
       __Pyx_GIVEREF(__pyx_v_f);
       PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_f);
-      __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_7 = __Pyx_PyInt_SubtractObjC(__pyx_t_6, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyInt_SubtractObjC(__pyx_t_6, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_int_2);
       __Pyx_GIVEREF(__pyx_int_2);
@@ -2158,12 +2158,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
       __Pyx_GIVEREF(__pyx_t_7);
       PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_7);
       __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_6, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_6, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_axis, __pyx_t_7) < 0) __PYX_ERR(0, 108, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_axis, __pyx_t_7) < 0) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 108, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 112, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2171,7 +2171,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
       __Pyx_DECREF_SET(__pyx_v_f, __pyx_t_7);
       __pyx_t_7 = 0;
 
-      /* "ltfatpy/comp/comp_dst.pyx":107
+      /* "ltfatpy/comp/comp_dst.pyx":111
  * 
  *     if f.ndim > 1:
  *         if f.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2180,58 +2180,58 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  */
     }
 
-    /* "ltfatpy/comp/comp_dst.pyx":109
+    /* "ltfatpy/comp/comp_dst.pyx":113
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]             # <<<<<<<<<<<<<<
  *         W = f.shape[1]
  *         f_combined = f.reshape(L * W, order='F')
  */
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_7, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_7, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_v_L = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_dst.pyx":110
+    /* "ltfatpy/comp/comp_dst.pyx":114
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]
  *         W = f.shape[1]             # <<<<<<<<<<<<<<
  *         f_combined = f.reshape(L * W, order='F')
  *     else:
  */
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_4, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_4, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_7); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_7); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __pyx_v_W = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_dst.pyx":111
+    /* "ltfatpy/comp/comp_dst.pyx":115
  *         L = f.shape[0]
  *         W = f.shape[1]
  *         f_combined = f.reshape(L * W, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         L = f.shape[0]
  */
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 111, __pyx_L1_error)
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 111, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 115, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2239,7 +2239,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     __pyx_v_f_combined = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "ltfatpy/comp/comp_dst.pyx":106
+    /* "ltfatpy/comp/comp_dst.pyx":110
  *     dst_type = {1: DSTI, 2: DSTII, 3: DSTIII, 4: DSTIV}
  * 
  *     if f.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2249,7 +2249,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     goto __pyx_L11;
   }
 
-  /* "ltfatpy/comp/comp_dst.pyx":113
+  /* "ltfatpy/comp/comp_dst.pyx":117
  *         f_combined = f.reshape(L * W, order='F')
  *     else:
  *         L = f.shape[0]             # <<<<<<<<<<<<<<
@@ -2257,16 +2257,16 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  *         f_combined = f
  */
   /*else*/ {
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 113, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 117, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 113, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 117, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 117, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_v_L = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_dst.pyx":114
+    /* "ltfatpy/comp/comp_dst.pyx":118
  *     else:
  *         L = f.shape[0]
  *         W = 1             # <<<<<<<<<<<<<<
@@ -2275,7 +2275,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  */
     __pyx_v_W = 1;
 
-    /* "ltfatpy/comp/comp_dst.pyx":115
+    /* "ltfatpy/comp/comp_dst.pyx":119
  *         L = f.shape[0]
  *         W = 1
  *         f_combined = f             # <<<<<<<<<<<<<<
@@ -2287,59 +2287,59 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
   }
   __pyx_L11:;
 
-  /* "ltfatpy/comp/comp_dst.pyx":117
+  /* "ltfatpy/comp/comp_dst.pyx":121
  *         f_combined = f
  * 
  *     if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
  *         res = np.ndarray((L * W), dtype=np.float64)
  *         comp_dst_d(f_combined, L, W, dst_type[type], res)
  */
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_4 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_4 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_EQ); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   if (__pyx_t_5) {
 
-    /* "ltfatpy/comp/comp_dst.pyx":118
+    /* "ltfatpy/comp/comp_dst.pyx":122
  * 
  *     if f.dtype.type == np.float64:
  *         res = np.ndarray((L * W), dtype=np.float64)             # <<<<<<<<<<<<<<
  *         comp_dst_d(f_combined, L, W, dst_type[type], res)
  *     else:
  */
-    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_float64); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_float64); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_dtype, __pyx_t_6) < 0) __PYX_ERR(0, 118, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_dtype, __pyx_t_6) < 0) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_4); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_4); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -2347,7 +2347,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     __pyx_v_res = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_dst.pyx":119
+    /* "ltfatpy/comp/comp_dst.pyx":123
  *     if f.dtype.type == np.float64:
  *         res = np.ndarray((L * W), dtype=np.float64)
  *         comp_dst_d(f_combined, L, W, dst_type[type], res)             # <<<<<<<<<<<<<<
@@ -2355,14 +2355,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  *         res = np.ndarray((L * W), dtype=np.complex128)
  */
     __pyx_t_9 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_f_combined);
-    if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 119, __pyx_L1_error)
-    __pyx_t_6 = __Pyx_PyDict_GetItem(__pyx_v_dst_type, __pyx_v_type); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 119, __pyx_L1_error)
+    if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyDict_GetItem(__pyx_v_dst_type, __pyx_v_type); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 123, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_10 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dst_kind)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_t_6)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 119, __pyx_L1_error)
+    __pyx_t_10 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dst_kind)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_t_6)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 123, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __pyx_t_11 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_res);
-    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 119, __pyx_L1_error)
-    __pyx_t_6 = __pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_d(__pyx_t_9, __pyx_v_L, __pyx_v_W, __pyx_t_10, __pyx_t_11); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 119, __pyx_L1_error)
+    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_6 = __pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_d(__pyx_t_9, __pyx_v_L, __pyx_v_W, __pyx_t_10, __pyx_t_11); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 123, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __PYX_XDEC_MEMVIEW(&__pyx_t_9, 1);
     __pyx_t_9.memview = NULL;
@@ -2372,7 +2372,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     __pyx_t_11.data = NULL;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_dst.pyx":117
+    /* "ltfatpy/comp/comp_dst.pyx":121
  *         f_combined = f
  * 
  *     if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
@@ -2382,7 +2382,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     goto __pyx_L13;
   }
 
-  /* "ltfatpy/comp/comp_dst.pyx":121
+  /* "ltfatpy/comp/comp_dst.pyx":125
  *         comp_dst_d(f_combined, L, W, dst_type[type], res)
  *     else:
  *         res = np.ndarray((L * W), dtype=np.complex128)             # <<<<<<<<<<<<<<
@@ -2390,28 +2390,28 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  *     if W > 1:
  */
   /*else*/ {
-    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_6);
     __pyx_t_6 = 0;
-    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_dtype, __pyx_t_7) < 0) __PYX_ERR(0, 121, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_dtype, __pyx_t_7) < 0) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 121, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 125, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -2419,7 +2419,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     __pyx_v_res = __pyx_t_7;
     __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_dst.pyx":122
+    /* "ltfatpy/comp/comp_dst.pyx":126
  *     else:
  *         res = np.ndarray((L * W), dtype=np.complex128)
  *         comp_dst_cd(f_combined, L, W, dst_type[type], res)             # <<<<<<<<<<<<<<
@@ -2427,14 +2427,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  *         res = np.reshape(res, (L, W), order='F')
  */
     __pyx_t_12 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_f_combined);
-    if (unlikely(!__pyx_t_12.memview)) __PYX_ERR(0, 122, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyDict_GetItem(__pyx_v_dst_type, __pyx_v_type); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
+    if (unlikely(!__pyx_t_12.memview)) __PYX_ERR(0, 126, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyDict_GetItem(__pyx_v_dst_type, __pyx_v_type); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 126, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_10 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dst_kind)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_t_7)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 122, __pyx_L1_error)
+    __pyx_t_10 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dst_kind)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dst_kind(__pyx_t_7)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 126, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 122, __pyx_L1_error)
-    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_cd(__pyx_t_12, __pyx_v_L, __pyx_v_W, __pyx_t_10, __pyx_t_13); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
+    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 126, __pyx_L1_error)
+    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst_cd(__pyx_t_12, __pyx_v_L, __pyx_v_W, __pyx_t_10, __pyx_t_13); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 126, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __PYX_XDEC_MEMVIEW(&__pyx_t_12, 1);
     __pyx_t_12.memview = NULL;
@@ -2446,7 +2446,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
   }
   __pyx_L13:;
 
-  /* "ltfatpy/comp/comp_dst.pyx":123
+  /* "ltfatpy/comp/comp_dst.pyx":127
  *         res = np.ndarray((L * W), dtype=np.complex128)
  *         comp_dst_cd(f_combined, L, W, dst_type[type], res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2456,22 +2456,22 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
   __pyx_t_5 = ((__pyx_v_W > 1) != 0);
   if (__pyx_t_5) {
 
-    /* "ltfatpy/comp/comp_dst.pyx":124
+    /* "ltfatpy/comp/comp_dst.pyx":128
  *         comp_dst_cd(f_combined, L, W, dst_type[type], res)
  *     if W > 1:
  *         res = np.reshape(res, (L, W), order='F')             # <<<<<<<<<<<<<<
  *     return res
  */
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 128, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 128, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 128, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 124, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 128, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_7);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_7);
@@ -2479,7 +2479,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_3);
     __pyx_t_7 = 0;
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_res);
     __Pyx_GIVEREF(__pyx_v_res);
@@ -2487,10 +2487,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     __Pyx_GIVEREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 124, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 128, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 124, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_3, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 128, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_3, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 128, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -2498,7 +2498,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
     __Pyx_DECREF_SET(__pyx_v_res, __pyx_t_7);
     __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_dst.pyx":123
+    /* "ltfatpy/comp/comp_dst.pyx":127
  *         res = np.ndarray((L * W), dtype=np.complex128)
  *         comp_dst_cd(f_combined, L, W, dst_type[type], res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2507,7 +2507,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
  */
   }
 
-  /* "ltfatpy/comp/comp_dst.pyx":125
+  /* "ltfatpy/comp/comp_dst.pyx":129
  *     if W > 1:
  *         res = np.reshape(res, (L, W), order='F')
  *     return res             # <<<<<<<<<<<<<<
@@ -2517,7 +2517,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(PyObject *__pyx_v_f,
   __pyx_r = __pyx_v_res;
   goto __pyx_L0;
 
-  /* "ltfatpy/comp/comp_dst.pyx":90
+  /* "ltfatpy/comp/comp_dst.pyx":94
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_dst(f, type):             # <<<<<<<<<<<<<<
@@ -2577,11 +2577,11 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_8comp_dst_1comp_dst(PyObject *__pyx_sel
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_type)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_dst", 1, 2, 2, 1); __PYX_ERR(0, 90, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_dst", 1, 2, 2, 1); __PYX_ERR(0, 94, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_dst") < 0)) __PYX_ERR(0, 90, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_dst") < 0)) __PYX_ERR(0, 94, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 2) {
       goto __pyx_L5_argtuple_error;
@@ -2594,7 +2594,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_8comp_dst_1comp_dst(PyObject *__pyx_sel
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_dst", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 90, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_dst", 1, 2, 2, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 94, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_dst.comp_dst", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2613,7 +2613,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_8comp_dst_comp_dst(CYTHON_UNUSED PyObje
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("comp_dst", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(__pyx_v_f, __pyx_v_type, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 90, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_8comp_dst_comp_dst(__pyx_v_f, __pyx_v_type, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 94, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -15053,8 +15053,8 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 100, __pyx_L1_error)
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 112, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 131, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(1, 146, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(1, 149, __pyx_L1_error)
@@ -15070,25 +15070,25 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "ltfatpy/comp/comp_dst.pyx":100
+  /* "ltfatpy/comp/comp_dst.pyx":104
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")             # <<<<<<<<<<<<<<
  *     if type not in {1, 2, 3, 4}:
  *         raise TypeError("type should be 1, 2, 3 or 4")
  */
-  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_f_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_f_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "ltfatpy/comp/comp_dst.pyx":102
+  /* "ltfatpy/comp/comp_dst.pyx":106
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if type not in {1, 2, 3, 4}:
  *         raise TypeError("type should be 1, 2, 3 or 4")             # <<<<<<<<<<<<<<
  * 
  *     dst_type = {1: DSTI, 2: DSTII, 3: DSTIII, 4: DSTIV}
  */
-  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_type_should_be_1_2_3_or_4); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_type_should_be_1_2_3_or_4); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
@@ -15440,22 +15440,22 @@ PyMODINIT_FUNC PyInit_comp_dst(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_dst.pyx":62
+  /* "ltfatpy/comp/comp_dst.pyx":66
  * 
  * import cython
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, dst_kind, dst_cd, dst_d
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   /* "ltfatpy/comp/comp_dst.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/ltfatpy/comp/comp_gabdual_long.c b/ltfatpy/comp/comp_gabdual_long.c
index bbea9b83d28ce809ae9db47c723702970be79874..9255f535c08d417cc927e0e13d55f12df2537f4a 100644
--- a/ltfatpy/comp/comp_gabdual_long.c
+++ b/ltfatpy/comp/comp_gabdual_long.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -1786,7 +1786,7 @@ static PyObject *__pyx_tuple__18;
 static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 
-/* "ltfatpy/comp/comp_gabdual_long.pyx":70
+/* "ltfatpy/comp/comp_gabdual_long.pyx":74
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_gabdual_long_d(const double[:] g, const ltfatInt L, const ltfatInt R,             # <<<<<<<<<<<<<<
@@ -1801,7 +1801,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_d(
   Py_ssize_t __pyx_t_2;
   __Pyx_RefNannySetupContext("comp_gabdual_long_d", 0);
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":73
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":77
  *                          const ltfatInt a, const ltfatInt M, double[:] out):
  *     """ Internal function, do not use it """
  *     gabdual_long_d(&g[0], L, R, a, M, &out[0])             # <<<<<<<<<<<<<<
@@ -1812,7 +1812,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_d(
   __pyx_t_2 = 0;
   gabdual_long_d((&(*((double *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_1 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_R, __pyx_v_a, __pyx_v_M, (&(*((double *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_2 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":70
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":74
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_gabdual_long_d(const double[:] g, const ltfatInt L, const ltfatInt R,             # <<<<<<<<<<<<<<
@@ -1827,7 +1827,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_d(
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_gabdual_long.pyx":79
+/* "ltfatpy/comp/comp_gabdual_long.pyx":83
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_gabdual_long_cd(const double complex[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1842,7 +1842,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_cd
   Py_ssize_t __pyx_t_2;
   __Pyx_RefNannySetupContext("comp_gabdual_long_cd", 0);
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":83
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":87
  *                           double complex[:] out):
  *     """ Internal function, do not use it """
  *     gabdual_long_cd(&g[0], L, R, a, M, &out[0])             # <<<<<<<<<<<<<<
@@ -1853,7 +1853,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_cd
   __pyx_t_2 = 0;
   gabdual_long_cd((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_1 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_R, __pyx_v_a, __pyx_v_M, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_2 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":79
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":83
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_gabdual_long_cd(const double complex[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1868,7 +1868,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_cd
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_gabdual_long.pyx":89
+/* "ltfatpy/comp/comp_gabdual_long.pyx":93
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_gabdual_long(g, a, M):             # <<<<<<<<<<<<<<
@@ -1901,66 +1901,66 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
   __Pyx_memviewslice __pyx_t_15 = { 0, 0, { 0 }, { 0 }, { 0 } };
   __Pyx_RefNannySetupContext("comp_gabdual_long", 0);
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":97
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":101
  *     .. seealso:: :func:`~ltfatpy.gabor.gabdual.gabdual`
  *     """
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")
  * 
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L4_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_1 = __pyx_t_5;
   __pyx_L4_bool_binop_done:;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":98
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":102
  *     """
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")             # <<<<<<<<<<<<<<
  * 
  *     cdef ltfatInt L = g.shape[0]
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(0, 98, __pyx_L1_error)
+    __PYX_ERR(0, 102, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":97
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":101
  *     .. seealso:: :func:`~ltfatpy.gabor.gabdual.gabdual`
  *     """
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
@@ -1969,23 +1969,23 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
  */
   }
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":100
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":104
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")
  * 
  *     cdef ltfatInt L = g.shape[0]             # <<<<<<<<<<<<<<
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_3); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_3); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_v_L = __pyx_t_6;
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":101
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":105
  * 
  *     cdef ltfatInt L = g.shape[0]
  *     cdef ltfatInt R = 1             # <<<<<<<<<<<<<<
@@ -1994,50 +1994,50 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
  */
   __pyx_v_R = 1;
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":102
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":106
  *     cdef ltfatInt L = g.shape[0]
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
  *         if g.ndim > 2:
  *             raise TypeError("g dimensions should be 1 or 2.")
  */
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":103
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":107
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
  *             raise TypeError("g dimensions should be 1 or 2.")
  *         R = g.shape[1]
  */
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
+    __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 103, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 107, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     if (__pyx_t_1) {
 
-      /* "ltfatpy/comp/comp_gabdual_long.pyx":104
+      /* "ltfatpy/comp/comp_gabdual_long.pyx":108
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  *             raise TypeError("g dimensions should be 1 or 2.")             # <<<<<<<<<<<<<<
  *         R = g.shape[1]
  *         g_combined = g.reshape(L*R, order='F')
  */
-      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 108, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_Raise(__pyx_t_3, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __PYX_ERR(0, 104, __pyx_L1_error)
+      __PYX_ERR(0, 108, __pyx_L1_error)
 
-      /* "ltfatpy/comp/comp_gabdual_long.pyx":103
+      /* "ltfatpy/comp/comp_gabdual_long.pyx":107
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2046,42 +2046,42 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
  */
     }
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":105
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":109
  *         if g.ndim > 2:
  *             raise TypeError("g dimensions should be 1 or 2.")
  *         R = g.shape[1]             # <<<<<<<<<<<<<<
  *         g_combined = g.reshape(L*R, order='F')
  *     else:
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 109, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_3, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 105, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_3, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 105, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 109, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_v_R = __pyx_t_6;
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":106
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":110
  *             raise TypeError("g dimensions should be 1 or 2.")
  *         R = g.shape[1]
  *         g_combined = g.reshape(L*R, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         g_combined = g
  */
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 106, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_4, __pyx_t_3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 106, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_4, __pyx_t_3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
@@ -2089,7 +2089,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     __pyx_v_g_combined = __pyx_t_7;
     __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":102
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":106
  *     cdef ltfatInt L = g.shape[0]
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2099,7 +2099,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     goto __pyx_L6;
   }
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":108
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":112
  *         g_combined = g.reshape(L*R, order='F')
  *     else:
  *         g_combined = g             # <<<<<<<<<<<<<<
@@ -2112,23 +2112,23 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
   }
   __pyx_L6:;
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":110
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":114
  *         g_combined = g
  * 
  *     if np.issubdtype(g.dtype, np.float64):             # <<<<<<<<<<<<<<
  *         res = np.ndarray((L * R), dtype=np.float64)
  *         comp_gabdual_long_d(g_combined, L, R, a, M, res)
  */
-  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_issubdtype); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_issubdtype); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_8);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_2 = NULL;
@@ -2146,7 +2146,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
   #if CYTHON_FAST_PYCALL
   if (PyFunction_Check(__pyx_t_4)) {
     PyObject *__pyx_temp[3] = {__pyx_t_2, __pyx_t_3, __pyx_t_8};
-    __pyx_t_7 = __Pyx_PyFunction_FastCall(__pyx_t_4, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyFunction_FastCall(__pyx_t_4, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -2156,7 +2156,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
   #if CYTHON_FAST_PYCCALL
   if (__Pyx_PyFastCFunction_Check(__pyx_t_4)) {
     PyObject *__pyx_temp[3] = {__pyx_t_2, __pyx_t_3, __pyx_t_8};
-    __pyx_t_7 = __Pyx_PyCFunction_FastCall(__pyx_t_4, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyCFunction_FastCall(__pyx_t_4, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -2164,7 +2164,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
   } else
   #endif
   {
-    __pyx_t_10 = PyTuple_New(2+__pyx_t_9); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_10 = PyTuple_New(2+__pyx_t_9); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_10);
     if (__pyx_t_2) {
       __Pyx_GIVEREF(__pyx_t_2); PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_2); __pyx_t_2 = NULL;
@@ -2175,44 +2175,44 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     PyTuple_SET_ITEM(__pyx_t_10, 1+__pyx_t_9, __pyx_t_8);
     __pyx_t_3 = 0;
     __pyx_t_8 = 0;
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_10, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_10, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
   }
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":111
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":115
  * 
  *     if np.issubdtype(g.dtype, np.float64):
  *         res = np.ndarray((L * R), dtype=np.float64)             # <<<<<<<<<<<<<<
  *         comp_gabdual_long_d(g_combined, L, R, a, M, res)
  *     else:
  */
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_10);
     __Pyx_GIVEREF(__pyx_t_7);
     PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_7);
     __pyx_t_7 = 0;
-    __pyx_t_7 = PyDict_New(); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_7 = PyDict_New(); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_8, __pyx_n_s_float64); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_8, __pyx_n_s_float64); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    if (PyDict_SetItem(__pyx_t_7, __pyx_n_s_dtype, __pyx_t_3) < 0) __PYX_ERR(0, 111, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_7, __pyx_n_s_dtype, __pyx_t_3) < 0) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_10, __pyx_t_7); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_10, __pyx_t_7); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
@@ -2220,7 +2220,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     __pyx_v_res = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":112
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":116
  *     if np.issubdtype(g.dtype, np.float64):
  *         res = np.ndarray((L * R), dtype=np.float64)
  *         comp_gabdual_long_d(g_combined, L, R, a, M, res)             # <<<<<<<<<<<<<<
@@ -2228,12 +2228,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
  *         res = np.ndarray((L * R), dtype=np.complex128)
  */
     __pyx_t_11 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_g_combined);
-    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 112, __pyx_L1_error)
-    __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 112, __pyx_L1_error)
-    __pyx_t_12 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_12 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 112, __pyx_L1_error)
+    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 116, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 116, __pyx_L1_error)
+    __pyx_t_12 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_12 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 116, __pyx_L1_error)
     __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_res);
-    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 112, __pyx_L1_error)
-    __pyx_t_3 = __pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_d(__pyx_t_11, __pyx_v_L, __pyx_v_R, __pyx_t_6, __pyx_t_12, __pyx_t_13); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 112, __pyx_L1_error)
+    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 116, __pyx_L1_error)
+    __pyx_t_3 = __pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_d(__pyx_t_11, __pyx_v_L, __pyx_v_R, __pyx_t_6, __pyx_t_12, __pyx_t_13); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 116, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __PYX_XDEC_MEMVIEW(&__pyx_t_11, 1);
     __pyx_t_11.memview = NULL;
@@ -2243,7 +2243,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     __pyx_t_13.data = NULL;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":110
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":114
  *         g_combined = g
  * 
  *     if np.issubdtype(g.dtype, np.float64):             # <<<<<<<<<<<<<<
@@ -2253,7 +2253,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     goto __pyx_L8;
   }
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":114
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":118
  *         comp_gabdual_long_d(g_combined, L, R, a, M, res)
  *     else:
  *         res = np.ndarray((L * R), dtype=np.complex128)             # <<<<<<<<<<<<<<
@@ -2261,28 +2261,28 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
  * 
  */
   /*else*/ {
-    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_10);
     __Pyx_GIVEREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_complex128); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_complex128); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_dtype, __pyx_t_8) < 0) __PYX_ERR(0, 114, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_dtype, __pyx_t_8) < 0) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_10, __pyx_t_3); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_10, __pyx_t_3); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
@@ -2290,7 +2290,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     __pyx_v_res = __pyx_t_8;
     __pyx_t_8 = 0;
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":115
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":119
  *     else:
  *         res = np.ndarray((L * R), dtype=np.complex128)
  *         comp_gabdual_long_cd(g_combined, L, R, a, M, res)             # <<<<<<<<<<<<<<
@@ -2298,12 +2298,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
  *     if R == 1:
  */
     __pyx_t_14 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_g_combined);
-    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 115, __pyx_L1_error)
-    __pyx_t_12 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_12 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L1_error)
-    __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L1_error)
+    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 119, __pyx_L1_error)
+    __pyx_t_12 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_12 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 119, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 119, __pyx_L1_error)
     __pyx_t_15 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-    if (unlikely(!__pyx_t_15.memview)) __PYX_ERR(0, 115, __pyx_L1_error)
-    __pyx_t_8 = __pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_cd(__pyx_t_14, __pyx_v_L, __pyx_v_R, __pyx_t_12, __pyx_t_6, __pyx_t_15); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 115, __pyx_L1_error)
+    if (unlikely(!__pyx_t_15.memview)) __PYX_ERR(0, 119, __pyx_L1_error)
+    __pyx_t_8 = __pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long_cd(__pyx_t_14, __pyx_v_L, __pyx_v_R, __pyx_t_12, __pyx_t_6, __pyx_t_15); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 119, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
     __PYX_XDEC_MEMVIEW(&__pyx_t_14, 1);
     __pyx_t_14.memview = NULL;
@@ -2315,7 +2315,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
   }
   __pyx_L8:;
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":117
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":121
  *         comp_gabdual_long_cd(g_combined, L, R, a, M, res)
  * 
  *     if R == 1:             # <<<<<<<<<<<<<<
@@ -2325,7 +2325,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
   __pyx_t_1 = ((__pyx_v_R == 1) != 0);
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":118
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":122
  * 
  *     if R == 1:
  *         return res             # <<<<<<<<<<<<<<
@@ -2337,7 +2337,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     __pyx_r = __pyx_v_res;
     goto __pyx_L0;
 
-    /* "ltfatpy/comp/comp_gabdual_long.pyx":117
+    /* "ltfatpy/comp/comp_gabdual_long.pyx":121
  *         comp_gabdual_long_cd(g_combined, L, R, a, M, res)
  * 
  *     if R == 1:             # <<<<<<<<<<<<<<
@@ -2346,18 +2346,18 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
  */
   }
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":120
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":124
  *         return res
  *     else:
  *         return res.reshape(R, L)             # <<<<<<<<<<<<<<
  */
   /*else*/ {
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_res, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_res, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_10 = __Pyx_PyInt_FromSize_t(__pyx_v_R); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_10 = __Pyx_PyInt_FromSize_t(__pyx_v_R); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __pyx_t_4 = NULL;
     __pyx_t_9 = 0;
@@ -2374,7 +2374,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     #if CYTHON_FAST_PYCALL
     if (PyFunction_Check(__pyx_t_3)) {
       PyObject *__pyx_temp[3] = {__pyx_t_4, __pyx_t_10, __pyx_t_7};
-      __pyx_t_8 = __Pyx_PyFunction_FastCall(__pyx_t_3, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 120, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyFunction_FastCall(__pyx_t_3, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 124, __pyx_L1_error)
       __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
@@ -2384,7 +2384,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     #if CYTHON_FAST_PYCCALL
     if (__Pyx_PyFastCFunction_Check(__pyx_t_3)) {
       PyObject *__pyx_temp[3] = {__pyx_t_4, __pyx_t_10, __pyx_t_7};
-      __pyx_t_8 = __Pyx_PyCFunction_FastCall(__pyx_t_3, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 120, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyCFunction_FastCall(__pyx_t_3, __pyx_temp+1-__pyx_t_9, 2+__pyx_t_9); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 124, __pyx_L1_error)
       __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
@@ -2392,7 +2392,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     } else
     #endif
     {
-      __pyx_t_2 = PyTuple_New(2+__pyx_t_9); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 120, __pyx_L1_error)
+      __pyx_t_2 = PyTuple_New(2+__pyx_t_9); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 124, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       if (__pyx_t_4) {
         __Pyx_GIVEREF(__pyx_t_4); PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_4); __pyx_t_4 = NULL;
@@ -2403,7 +2403,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
       PyTuple_SET_ITEM(__pyx_t_2, 1+__pyx_t_9, __pyx_t_7);
       __pyx_t_10 = 0;
       __pyx_t_7 = 0;
-      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 120, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 124, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     }
@@ -2413,7 +2413,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(Py
     goto __pyx_L0;
   }
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":89
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":93
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_gabdual_long(g, a, M):             # <<<<<<<<<<<<<<
@@ -2474,16 +2474,16 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_17comp_gabdual_long_1comp_gabdual_long(
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_a)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_gabdual_long", 1, 3, 3, 1); __PYX_ERR(0, 89, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_gabdual_long", 1, 3, 3, 1); __PYX_ERR(0, 93, __pyx_L3_error)
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_M)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_gabdual_long", 1, 3, 3, 2); __PYX_ERR(0, 89, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_gabdual_long", 1, 3, 3, 2); __PYX_ERR(0, 93, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_gabdual_long") < 0)) __PYX_ERR(0, 89, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_gabdual_long") < 0)) __PYX_ERR(0, 93, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -2498,7 +2498,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_17comp_gabdual_long_1comp_gabdual_long(
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_gabdual_long", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 89, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_gabdual_long", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 93, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_gabdual_long.comp_gabdual_long", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2517,7 +2517,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(C
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("comp_gabdual_long", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(__pyx_v_g, __pyx_v_a, __pyx_v_M, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 89, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_17comp_gabdual_long_comp_gabdual_long(__pyx_v_g, __pyx_v_a, __pyx_v_M, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 93, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -14958,7 +14958,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 102, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 131, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(1, 146, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(1, 149, __pyx_L1_error)
@@ -14975,25 +14975,25 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":98
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":102
  *     """
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")             # <<<<<<<<<<<<<<
  * 
  *     cdef ltfatInt L = g.shape[0]
  */
-  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":104
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":108
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  *             raise TypeError("g dimensions should be 1 or 2.")             # <<<<<<<<<<<<<<
  *         R = g.shape[1]
  *         g_combined = g.reshape(L*R, order='F')
  */
-  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_dimensions_should_be_1_or_2); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_dimensions_should_be_1_or_2); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
@@ -15343,22 +15343,22 @@ PyMODINIT_FUNC PyInit_comp_gabdual_long(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_gabdual_long.pyx":62
+  /* "ltfatpy/comp/comp_gabdual_long.pyx":66
  * 
  * import cython
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, gabdual_long_d, gabdual_long_cd
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   /* "ltfatpy/comp/comp_gabdual_long.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/ltfatpy/comp/comp_gabtight_long.c b/ltfatpy/comp/comp_gabtight_long.c
index 6960c06523f7999652b0ee4c81a4290d966c6382..69c40eebeee09d05fdd3e800a52c01c2d2172816 100644
--- a/ltfatpy/comp/comp_gabtight_long.c
+++ b/ltfatpy/comp/comp_gabtight_long.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -1793,7 +1793,7 @@ static PyObject *__pyx_tuple__18;
 static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 
-/* "ltfatpy/comp/comp_gabtight_long.pyx":72
+/* "ltfatpy/comp/comp_gabtight_long.pyx":76
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_gabtight_long_real(const double[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1808,7 +1808,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_
   Py_ssize_t __pyx_t_2;
   __Pyx_RefNannySetupContext("comp_gabtight_long_real", 0);
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":76
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":80
  *                              const ltfatInt M, double[:] out):
  *     """ Internal function, do not use it """
  *     gabtight_long_d(&g[0], L, R, a, M, &out[0])             # <<<<<<<<<<<<<<
@@ -1819,7 +1819,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_
   __pyx_t_2 = 0;
   gabtight_long_d((&(*((double *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_1 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_R, __pyx_v_a, __pyx_v_M, (&(*((double *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_2 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":72
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":76
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_gabtight_long_real(const double[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1834,7 +1834,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_gabtight_long.pyx":82
+/* "ltfatpy/comp/comp_gabtight_long.pyx":86
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_gabtight_long_cmplx(const double complex[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1849,7 +1849,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_
   Py_ssize_t __pyx_t_2;
   __Pyx_RefNannySetupContext("comp_gabtight_long_cmplx", 0);
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":86
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":90
  *                               const ltfatInt M, double complex[:] out):
  *     """ Internal function, do not use it """
  *     gabtight_long_cd(&g[0], L, R, a, M, &out[0])             # <<<<<<<<<<<<<<
@@ -1860,7 +1860,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_
   __pyx_t_2 = 0;
   gabtight_long_cd((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_1 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_R, __pyx_v_a, __pyx_v_M, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_2 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":82
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":86
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_gabtight_long_cmplx(const double complex[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1875,7 +1875,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_gabtight_long.pyx":88
+/* "ltfatpy/comp/comp_gabtight_long.pyx":92
  *     gabtight_long_cd(&g[0], L, R, a, M, &out[0])
  * 
  * cpdef comp_gabtight_long(g, a, M):             # <<<<<<<<<<<<<<
@@ -1908,23 +1908,23 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   PyObject *__pyx_t_15 = NULL;
   __Pyx_RefNannySetupContext("comp_gabtight_long", 0);
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":96
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":100
  *     .. seealso:: :func:`~ltfatpy.gabor.gabtight.gabtight`
  *     """
  *     cdef ltfatInt L = g.shape[0]             # <<<<<<<<<<<<<<
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_3 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_3 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_3 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_L = __pyx_t_3;
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":97
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":101
  *     """
  *     cdef ltfatInt L = g.shape[0]
  *     cdef ltfatInt R = 1             # <<<<<<<<<<<<<<
@@ -1933,50 +1933,50 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
  */
   __pyx_v_R = 1;
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":98
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":102
  *     cdef ltfatInt L = g.shape[0]
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
  *         if g.ndim > 2:
  *             raise TypeError("g dimensions should be 1 or 2.")
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 98, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 102, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":99
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":103
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
  *             raise TypeError("g dimensions should be 1 or 2.")
  *         R = g.shape[1]
  */
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 99, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 99, __pyx_L1_error)
+    __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 99, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 103, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_gabtight_long.pyx":100
+      /* "ltfatpy/comp/comp_gabtight_long.pyx":104
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  *             raise TypeError("g dimensions should be 1 or 2.")             # <<<<<<<<<<<<<<
  *         R = g.shape[1]
  *         g_combined = g.reshape(L*R, order='F')
  */
-      __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 100, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 104, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_Raise(__pyx_t_2, 0, 0, 0);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __PYX_ERR(0, 100, __pyx_L1_error)
+      __PYX_ERR(0, 104, __pyx_L1_error)
 
-      /* "ltfatpy/comp/comp_gabtight_long.pyx":99
+      /* "ltfatpy/comp/comp_gabtight_long.pyx":103
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
@@ -1985,42 +1985,42 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
  */
     }
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":101
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":105
  *         if g.ndim > 2:
  *             raise TypeError("g dimensions should be 1 or 2.")
  *         R = g.shape[1]             # <<<<<<<<<<<<<<
  *         g_combined = g.reshape(L*R, order='F')
  *     else:
  */
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 105, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_2, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_3 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_3 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_3 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 105, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __pyx_v_R = __pyx_t_3;
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":102
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":106
  *             raise TypeError("g dimensions should be 1 or 2.")
  *         R = g.shape[1]
  *         g_combined = g.reshape(L*R, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         g_combined = g
  */
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 102, __pyx_L1_error)
+    __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 106, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_GIVEREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
+    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 102, __pyx_L1_error)
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_5, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 102, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_5, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 106, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
@@ -2028,7 +2028,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     __pyx_v_g_combined = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":98
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":102
  *     cdef ltfatInt L = g.shape[0]
  *     cdef ltfatInt R = 1
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2038,7 +2038,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     goto __pyx_L3;
   }
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":104
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":108
  *         g_combined = g.reshape(L*R, order='F')
  *     else:
  *         g_combined = g             # <<<<<<<<<<<<<<
@@ -2051,23 +2051,23 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   }
   __pyx_L3:;
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":106
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":110
  *         g_combined = g
  * 
  *     if np.issubdtype(g.dtype, np.float64):             # <<<<<<<<<<<<<<
  *         gd = np.ndarray((L * R), dtype=np.float64)
  *         comp_gabtight_long_real(g_combined, L, R, a, M, gd)
  */
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_issubdtype); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_issubdtype); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_float64); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_float64); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = NULL;
@@ -2085,7 +2085,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   #if CYTHON_FAST_PYCALL
   if (PyFunction_Check(__pyx_t_5)) {
     PyObject *__pyx_temp[3] = {__pyx_t_1, __pyx_t_2, __pyx_t_7};
-    __pyx_t_6 = __Pyx_PyFunction_FastCall(__pyx_t_5, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyFunction_FastCall(__pyx_t_5, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2095,7 +2095,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   #if CYTHON_FAST_PYCCALL
   if (__Pyx_PyFastCFunction_Check(__pyx_t_5)) {
     PyObject *__pyx_temp[3] = {__pyx_t_1, __pyx_t_2, __pyx_t_7};
-    __pyx_t_6 = __Pyx_PyCFunction_FastCall(__pyx_t_5, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyCFunction_FastCall(__pyx_t_5, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2103,7 +2103,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   } else
   #endif
   {
-    __pyx_t_9 = PyTuple_New(2+__pyx_t_8); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_9 = PyTuple_New(2+__pyx_t_8); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_9);
     if (__pyx_t_1) {
       __Pyx_GIVEREF(__pyx_t_1); PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_1); __pyx_t_1 = NULL;
@@ -2114,44 +2114,44 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     PyTuple_SET_ITEM(__pyx_t_9, 1+__pyx_t_8, __pyx_t_7);
     __pyx_t_2 = 0;
     __pyx_t_7 = 0;
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_5, __pyx_t_9, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_5, __pyx_t_9, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
   }
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":107
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":111
  * 
  *     if np.issubdtype(g.dtype, np.float64):
  *         gd = np.ndarray((L * R), dtype=np.float64)             # <<<<<<<<<<<<<<
  *         comp_gabtight_long_real(g_combined, L, R, a, M, gd)
  *     elif np.issubdtype(g.dtype, np.complex128):
  */
-    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_9);
     __Pyx_GIVEREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_6);
     __pyx_t_6 = 0;
-    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_dtype, __pyx_t_2) < 0) __PYX_ERR(0, 107, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_dtype, __pyx_t_2) < 0) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_5, __pyx_t_9, __pyx_t_6); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_5, __pyx_t_9, __pyx_t_6); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
@@ -2159,7 +2159,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     __pyx_v_gd = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":108
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":112
  *     if np.issubdtype(g.dtype, np.float64):
  *         gd = np.ndarray((L * R), dtype=np.float64)
  *         comp_gabtight_long_real(g_combined, L, R, a, M, gd)             # <<<<<<<<<<<<<<
@@ -2167,12 +2167,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
  *         gd = np.ndarray((L * R), dtype=np.complex128)
  */
     __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_g_combined);
-    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 108, __pyx_L1_error)
-    __pyx_t_3 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_3 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 108, __pyx_L1_error)
-    __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 108, __pyx_L1_error)
+    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_3 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 112, __pyx_L1_error)
     __pyx_t_12 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_gd);
-    if (unlikely(!__pyx_t_12.memview)) __PYX_ERR(0, 108, __pyx_L1_error)
-    __pyx_t_2 = __pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_real(__pyx_t_10, __pyx_v_L, __pyx_v_R, __pyx_t_3, __pyx_t_11, __pyx_t_12); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 108, __pyx_L1_error)
+    if (unlikely(!__pyx_t_12.memview)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_2 = __pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_real(__pyx_t_10, __pyx_v_L, __pyx_v_R, __pyx_t_3, __pyx_t_11, __pyx_t_12); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 112, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __PYX_XDEC_MEMVIEW(&__pyx_t_10, 1);
     __pyx_t_10.memview = NULL;
@@ -2182,7 +2182,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     __pyx_t_12.data = NULL;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":106
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":110
  *         g_combined = g
  * 
  *     if np.issubdtype(g.dtype, np.float64):             # <<<<<<<<<<<<<<
@@ -2192,23 +2192,23 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     goto __pyx_L5;
   }
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":109
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":113
  *         gd = np.ndarray((L * R), dtype=np.float64)
  *         comp_gabtight_long_real(g_combined, L, R, a, M, gd)
  *     elif np.issubdtype(g.dtype, np.complex128):             # <<<<<<<<<<<<<<
  *         gd = np.ndarray((L * R), dtype=np.complex128)
  *         comp_gabtight_long_cmplx(g_combined, L, R, a, M, gd)
  */
-  __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_issubdtype); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_issubdtype); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_9);
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
-  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_complex128); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_complex128); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
   __pyx_t_5 = NULL;
@@ -2226,7 +2226,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   #if CYTHON_FAST_PYCALL
   if (PyFunction_Check(__pyx_t_9)) {
     PyObject *__pyx_temp[3] = {__pyx_t_5, __pyx_t_6, __pyx_t_7};
-    __pyx_t_2 = __Pyx_PyFunction_FastCall(__pyx_t_9, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyFunction_FastCall(__pyx_t_9, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2236,7 +2236,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   #if CYTHON_FAST_PYCCALL
   if (__Pyx_PyFastCFunction_Check(__pyx_t_9)) {
     PyObject *__pyx_temp[3] = {__pyx_t_5, __pyx_t_6, __pyx_t_7};
-    __pyx_t_2 = __Pyx_PyCFunction_FastCall(__pyx_t_9, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyCFunction_FastCall(__pyx_t_9, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2244,7 +2244,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   } else
   #endif
   {
-    __pyx_t_1 = PyTuple_New(2+__pyx_t_8); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_1 = PyTuple_New(2+__pyx_t_8); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     if (__pyx_t_5) {
       __Pyx_GIVEREF(__pyx_t_5); PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_5); __pyx_t_5 = NULL;
@@ -2255,44 +2255,44 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     PyTuple_SET_ITEM(__pyx_t_1, 1+__pyx_t_8, __pyx_t_7);
     __pyx_t_6 = 0;
     __pyx_t_7 = 0;
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_9, __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_9, __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 113, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   }
   __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":110
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":114
  *         comp_gabtight_long_real(g_combined, L, R, a, M, gd)
  *     elif np.issubdtype(g.dtype, np.complex128):
  *         gd = np.ndarray((L * R), dtype=np.complex128)             # <<<<<<<<<<<<<<
  *         comp_gabtight_long_cmplx(g_combined, L, R, a, M, gd)
  *     else:
  */
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_9);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_R)); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_complex128); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_complex128); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_dtype, __pyx_t_6) < 0) __PYX_ERR(0, 110, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_dtype, __pyx_t_6) < 0) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_9, __pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 110, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_9, __pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 114, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -2300,7 +2300,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     __pyx_v_gd = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":111
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":115
  *     elif np.issubdtype(g.dtype, np.complex128):
  *         gd = np.ndarray((L * R), dtype=np.complex128)
  *         comp_gabtight_long_cmplx(g_combined, L, R, a, M, gd)             # <<<<<<<<<<<<<<
@@ -2308,12 +2308,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")
  */
     __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_g_combined);
-    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 111, __pyx_L1_error)
-    __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 111, __pyx_L1_error)
-    __pyx_t_3 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_3 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 111, __pyx_L1_error)
+    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 115, __pyx_L1_error)
+    __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_3 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L1_error)
     __pyx_t_14 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_gd);
-    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 111, __pyx_L1_error)
-    __pyx_t_6 = __pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_cmplx(__pyx_t_13, __pyx_v_L, __pyx_v_R, __pyx_t_11, __pyx_t_3, __pyx_t_14); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
+    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 115, __pyx_L1_error)
+    __pyx_t_6 = __pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long_cmplx(__pyx_t_13, __pyx_v_L, __pyx_v_R, __pyx_t_11, __pyx_t_3, __pyx_t_14); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __PYX_XDEC_MEMVIEW(&__pyx_t_13, 1);
     __pyx_t_13.memview = NULL;
@@ -2323,7 +2323,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     __pyx_t_14.data = NULL;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":109
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":113
  *         gd = np.ndarray((L * R), dtype=np.float64)
  *         comp_gabtight_long_real(g_combined, L, R, a, M, gd)
  *     elif np.issubdtype(g.dtype, np.complex128):             # <<<<<<<<<<<<<<
@@ -2333,7 +2333,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     goto __pyx_L5;
   }
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":113
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":117
  *         comp_gabtight_long_cmplx(g_combined, L, R, a, M, gd)
  *     else:
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")             # <<<<<<<<<<<<<<
@@ -2341,15 +2341,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
  *     if R == 1:
  */
   /*else*/ {
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 113, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 117, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_Raise(__pyx_t_6, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __PYX_ERR(0, 113, __pyx_L1_error)
+    __PYX_ERR(0, 117, __pyx_L1_error)
   }
   __pyx_L5:;
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":115
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":119
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")
  * 
  *     if R == 1:             # <<<<<<<<<<<<<<
@@ -2359,7 +2359,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
   __pyx_t_4 = ((__pyx_v_R == 1) != 0);
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":116
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":120
  * 
  *     if R == 1:
  *         return gd             # <<<<<<<<<<<<<<
@@ -2371,7 +2371,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     __pyx_r = __pyx_v_gd;
     goto __pyx_L0;
 
-    /* "ltfatpy/comp/comp_gabtight_long.pyx":115
+    /* "ltfatpy/comp/comp_gabtight_long.pyx":119
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")
  * 
  *     if R == 1:             # <<<<<<<<<<<<<<
@@ -2380,18 +2380,18 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
  */
   }
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":118
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":122
  *         return gd
  *     else:
  *         return gd.reshape(R, L).transpose()             # <<<<<<<<<<<<<<
  */
   /*else*/ {
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_gd, __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_gd, __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_9 = __Pyx_PyInt_FromSize_t(__pyx_v_R); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_9 = __Pyx_PyInt_FromSize_t(__pyx_v_R); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_9);
-    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __pyx_t_5 = NULL;
     __pyx_t_8 = 0;
@@ -2408,7 +2408,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     #if CYTHON_FAST_PYCALL
     if (PyFunction_Check(__pyx_t_1)) {
       PyObject *__pyx_temp[3] = {__pyx_t_5, __pyx_t_9, __pyx_t_7};
-      __pyx_t_2 = __Pyx_PyFunction_FastCall(__pyx_t_1, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 118, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyFunction_FastCall(__pyx_t_1, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 122, __pyx_L1_error)
       __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
@@ -2418,7 +2418,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     #if CYTHON_FAST_PYCCALL
     if (__Pyx_PyFastCFunction_Check(__pyx_t_1)) {
       PyObject *__pyx_temp[3] = {__pyx_t_5, __pyx_t_9, __pyx_t_7};
-      __pyx_t_2 = __Pyx_PyCFunction_FastCall(__pyx_t_1, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 118, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyCFunction_FastCall(__pyx_t_1, __pyx_temp+1-__pyx_t_8, 2+__pyx_t_8); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 122, __pyx_L1_error)
       __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
@@ -2426,7 +2426,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     } else
     #endif
     {
-      __pyx_t_15 = PyTuple_New(2+__pyx_t_8); if (unlikely(!__pyx_t_15)) __PYX_ERR(0, 118, __pyx_L1_error)
+      __pyx_t_15 = PyTuple_New(2+__pyx_t_8); if (unlikely(!__pyx_t_15)) __PYX_ERR(0, 122, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_15);
       if (__pyx_t_5) {
         __Pyx_GIVEREF(__pyx_t_5); PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_t_5); __pyx_t_5 = NULL;
@@ -2437,12 +2437,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
       PyTuple_SET_ITEM(__pyx_t_15, 1+__pyx_t_8, __pyx_t_7);
       __pyx_t_9 = 0;
       __pyx_t_7 = 0;
-      __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_15, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 118, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_15, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 122, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
     }
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_transpose); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_transpose); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_2 = NULL;
@@ -2456,10 +2456,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
       }
     }
     if (__pyx_t_2) {
-      __pyx_t_6 = __Pyx_PyObject_CallOneArg(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 118, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_CallOneArg(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     } else {
-      __pyx_t_6 = __Pyx_PyObject_CallNoArg(__pyx_t_1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 118, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_CallNoArg(__pyx_t_1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
     }
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -2468,7 +2468,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(
     goto __pyx_L0;
   }
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":88
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":92
  *     gabtight_long_cd(&g[0], L, R, a, M, &out[0])
  * 
  * cpdef comp_gabtight_long(g, a, M):             # <<<<<<<<<<<<<<
@@ -2530,16 +2530,16 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_18comp_gabtight_long_1comp_gabtight_lon
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_a)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_gabtight_long", 1, 3, 3, 1); __PYX_ERR(0, 88, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_gabtight_long", 1, 3, 3, 1); __PYX_ERR(0, 92, __pyx_L3_error)
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_M)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_gabtight_long", 1, 3, 3, 2); __PYX_ERR(0, 88, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_gabtight_long", 1, 3, 3, 2); __PYX_ERR(0, 92, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_gabtight_long") < 0)) __PYX_ERR(0, 88, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_gabtight_long") < 0)) __PYX_ERR(0, 92, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
       goto __pyx_L5_argtuple_error;
@@ -2554,7 +2554,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_18comp_gabtight_long_1comp_gabtight_lon
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_gabtight_long", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 88, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_gabtight_long", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 92, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_gabtight_long.comp_gabtight_long", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2573,7 +2573,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("comp_gabtight_long", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(__pyx_v_g, __pyx_v_a, __pyx_v_M, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 88, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_18comp_gabtight_long_comp_gabtight_long(__pyx_v_g, __pyx_v_a, __pyx_v_M, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -15014,7 +15014,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 104, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 131, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(1, 146, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(1, 149, __pyx_L1_error)
@@ -15031,25 +15031,25 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":100
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":104
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  *             raise TypeError("g dimensions should be 1 or 2.")             # <<<<<<<<<<<<<<
  *         R = g.shape[1]
  *         g_combined = g.reshape(L*R, order='F')
  */
-  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_g_dimensions_should_be_1_or_2); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_g_dimensions_should_be_1_or_2); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":113
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":117
  *         comp_gabtight_long_cmplx(g_combined, L, R, a, M, gd)
  *     else:
  *         raise TypeError("g data should be numpy.float64 or numpy.complex128")             # <<<<<<<<<<<<<<
  * 
  *     if R == 1:
  */
-  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 113, __pyx_L1_error)
+  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 117, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
@@ -15399,22 +15399,22 @@ PyMODINIT_FUNC PyInit_comp_gabtight_long(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_gabtight_long.pyx":62
+  /* "ltfatpy/comp/comp_gabtight_long.pyx":66
  * 
  * import cython
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, gabtight_long_d, gabtight_long_cd
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   /* "ltfatpy/comp/comp_gabtight_long.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/ltfatpy/comp/comp_isepdgt.c b/ltfatpy/comp/comp_isepdgt.c
index 3e39c4fa5f6b67c5cac8056b19b76834074af678..19561194216afb9675aa1bfc67d59c7d9b83402d 100644
--- a/ltfatpy/comp/comp_isepdgt.c
+++ b/ltfatpy/comp/comp_isepdgt.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -1809,7 +1809,7 @@ static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 static PyObject *__pyx_tuple__21;
 
-/* "ltfatpy/comp/comp_isepdgt.pyx":71
+/* "ltfatpy/comp/comp_isepdgt.pyx":75
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_idgt_long_d(const double complex[:] coef, const double complex[:] g,             # <<<<<<<<<<<<<<
@@ -1825,7 +1825,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_long_d(__Pyx_me
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_idgt_long_d", 0);
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":75
+  /* "ltfatpy/comp/comp_isepdgt.pyx":79
  *                       const dgt_phasetype ptype, double complex[:] out):
  *     """ Internal function, do not use it """
  *     idgt_long_d(& coef[0], & g[0], L, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1837,7 +1837,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_long_d(__Pyx_me
   __pyx_t_3 = 0;
   idgt_long_d((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_coef.data + __pyx_t_1 * __pyx_v_coef.strides[0]) )))), (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":71
+  /* "ltfatpy/comp/comp_isepdgt.pyx":75
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_idgt_long_d(const double complex[:] coef, const double complex[:] g,             # <<<<<<<<<<<<<<
@@ -1852,7 +1852,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_long_d(__Pyx_me
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_isepdgt.pyx":81
+/* "ltfatpy/comp/comp_isepdgt.pyx":85
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_idgt_fb_d(const double complex[:] coef, const double complex[:] g,             # <<<<<<<<<<<<<<
@@ -1868,7 +1868,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_fb_d(__Pyx_memv
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_idgt_fb_d", 0);
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":86
+  /* "ltfatpy/comp/comp_isepdgt.pyx":90
  *                     double complex[:] out):
  *     """ Internal function, do not use it """
  *     idgt_fb_d(& coef[0], & g[0], L, gl, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1880,7 +1880,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_fb_d(__Pyx_memv
   __pyx_t_3 = 0;
   idgt_fb_d((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_coef.data + __pyx_t_1 * __pyx_v_coef.strides[0]) )))), (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":81
+  /* "ltfatpy/comp/comp_isepdgt.pyx":85
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_idgt_fb_d(const double complex[:] coef, const double complex[:] g,             # <<<<<<<<<<<<<<
@@ -1895,7 +1895,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_fb_d(__Pyx_memv
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_isepdgt.pyx":92
+/* "ltfatpy/comp/comp_isepdgt.pyx":96
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_isepdgt(coef, g, a, pt):             # <<<<<<<<<<<<<<
@@ -1930,42 +1930,42 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
   __Pyx_INCREF(__pyx_v_coef);
   __Pyx_INCREF(__pyx_v_g);
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":100
+  /* "ltfatpy/comp/comp_isepdgt.pyx":104
  *     .. seealso:: :func:`~ltfatpy.gabor.idgt.idgt`
  *     """
  *     if (coef.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
  *         coef = coef.astype(np.complex128)
  *     if (g.dtype.type != np.complex128):
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":101
+    /* "ltfatpy/comp/comp_isepdgt.pyx":105
  *     """
  *     if (coef.dtype.type != np.complex128):
  *         coef = coef.astype(np.complex128)             # <<<<<<<<<<<<<<
  *     if (g.dtype.type != np.complex128):
  *         g = g.astype(np.complex128)
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_astype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_astype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 105, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 105, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_2 = NULL;
@@ -1979,14 +1979,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       }
     }
     if (!__pyx_t_2) {
-      __pyx_t_1 = __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_5); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_5); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __Pyx_GOTREF(__pyx_t_1);
     } else {
       #if CYTHON_FAST_PYCALL
       if (PyFunction_Check(__pyx_t_3)) {
         PyObject *__pyx_temp[2] = {__pyx_t_2, __pyx_t_5};
-        __pyx_t_1 = __Pyx_PyFunction_FastCall(__pyx_t_3, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_PyFunction_FastCall(__pyx_t_3, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
         __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
@@ -1995,20 +1995,20 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       #if CYTHON_FAST_PYCCALL
       if (__Pyx_PyFastCFunction_Check(__pyx_t_3)) {
         PyObject *__pyx_temp[2] = {__pyx_t_2, __pyx_t_5};
-        __pyx_t_1 = __Pyx_PyCFunction_FastCall(__pyx_t_3, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_PyCFunction_FastCall(__pyx_t_3, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
         __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       } else
       #endif
       {
-        __pyx_t_6 = PyTuple_New(1+1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 101, __pyx_L1_error)
+        __pyx_t_6 = PyTuple_New(1+1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 105, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_6);
         __Pyx_GIVEREF(__pyx_t_2); PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_2); __pyx_t_2 = NULL;
         __Pyx_GIVEREF(__pyx_t_5);
         PyTuple_SET_ITEM(__pyx_t_6, 0+1, __pyx_t_5);
         __pyx_t_5 = 0;
-        __pyx_t_1 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_6, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_6, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       }
@@ -2017,7 +2017,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __Pyx_DECREF_SET(__pyx_v_coef, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":100
+    /* "ltfatpy/comp/comp_isepdgt.pyx":104
  *     .. seealso:: :func:`~ltfatpy.gabor.idgt.idgt`
  *     """
  *     if (coef.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
@@ -2026,42 +2026,42 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":102
+  /* "ltfatpy/comp/comp_isepdgt.pyx":106
  *     if (coef.dtype.type != np.complex128):
  *         coef = coef.astype(np.complex128)
  *     if (g.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
  *         g = g.astype(np.complex128)
  * 
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_complex128); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_complex128); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_t_6, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_t_6, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":103
+    /* "ltfatpy/comp/comp_isepdgt.pyx":107
  *         coef = coef.astype(np.complex128)
  *     if (g.dtype.type != np.complex128):
  *         g = g.astype(np.complex128)             # <<<<<<<<<<<<<<
  * 
  *     if pt != 0 and pt != 1:
  */
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_astype); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 103, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_astype); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 107, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_complex128); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 103, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_complex128); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 107, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_t_3 = NULL;
@@ -2075,14 +2075,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       }
     }
     if (!__pyx_t_3) {
-      __pyx_t_1 = __Pyx_PyObject_CallOneArg(__pyx_t_6, __pyx_t_5); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_CallOneArg(__pyx_t_6, __pyx_t_5); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __Pyx_GOTREF(__pyx_t_1);
     } else {
       #if CYTHON_FAST_PYCALL
       if (PyFunction_Check(__pyx_t_6)) {
         PyObject *__pyx_temp[2] = {__pyx_t_3, __pyx_t_5};
-        __pyx_t_1 = __Pyx_PyFunction_FastCall(__pyx_t_6, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_PyFunction_FastCall(__pyx_t_6, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
         __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
@@ -2091,20 +2091,20 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       #if CYTHON_FAST_PYCCALL
       if (__Pyx_PyFastCFunction_Check(__pyx_t_6)) {
         PyObject *__pyx_temp[2] = {__pyx_t_3, __pyx_t_5};
-        __pyx_t_1 = __Pyx_PyCFunction_FastCall(__pyx_t_6, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_PyCFunction_FastCall(__pyx_t_6, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
         __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       } else
       #endif
       {
-        __pyx_t_2 = PyTuple_New(1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
+        __pyx_t_2 = PyTuple_New(1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_GIVEREF(__pyx_t_3); PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_3); __pyx_t_3 = NULL;
         __Pyx_GIVEREF(__pyx_t_5);
         PyTuple_SET_ITEM(__pyx_t_2, 0+1, __pyx_t_5);
         __pyx_t_5 = 0;
-        __pyx_t_1 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
+        __pyx_t_1 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       }
@@ -2113,7 +2113,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __Pyx_DECREF_SET(__pyx_v_g, __pyx_t_1);
     __pyx_t_1 = 0;
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":102
+    /* "ltfatpy/comp/comp_isepdgt.pyx":106
  *     if (coef.dtype.type != np.complex128):
  *         coef = coef.astype(np.complex128)
  *     if (g.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
@@ -2122,42 +2122,42 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":105
+  /* "ltfatpy/comp/comp_isepdgt.pyx":109
  *         g = g.astype(np.complex128)
  * 
  *     if pt != 0 and pt != 1:             # <<<<<<<<<<<<<<
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_int_0, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
-  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_int_0, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_7) {
   } else {
     __pyx_t_4 = __pyx_t_7;
     goto __pyx_L6_bool_binop_done;
   }
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_int_1, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
-  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_int_1, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_4 = __pyx_t_7;
   __pyx_L6_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":106
+    /* "ltfatpy/comp/comp_isepdgt.pyx":110
  * 
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")             # <<<<<<<<<<<<<<
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 106, __pyx_L1_error)
+    __PYX_ERR(0, 110, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":105
+    /* "ltfatpy/comp/comp_isepdgt.pyx":109
  *         g = g.astype(np.complex128)
  * 
  *     if pt != 0 and pt != 1:             # <<<<<<<<<<<<<<
@@ -2166,48 +2166,48 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":107
+  /* "ltfatpy/comp/comp_isepdgt.pyx":111
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:             # <<<<<<<<<<<<<<
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  *     cdef ltfatInt N = coef.shape[1]
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_6 = PyObject_RichCompare(__pyx_t_1, __pyx_int_1, Py_LE); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_6 = PyObject_RichCompare(__pyx_t_1, __pyx_int_1, Py_LE); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   if (!__pyx_t_7) {
   } else {
     __pyx_t_4 = __pyx_t_7;
     goto __pyx_L9_bool_binop_done;
   }
-  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_6, __pyx_int_3, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_6, __pyx_int_3, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_4 = __pyx_t_7;
   __pyx_L9_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":108
+    /* "ltfatpy/comp/comp_isepdgt.pyx":112
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")             # <<<<<<<<<<<<<<
  *     cdef ltfatInt N = coef.shape[1]
  *     cdef ltfatInt L = N * a
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 108, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 108, __pyx_L1_error)
+    __PYX_ERR(0, 112, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":107
+    /* "ltfatpy/comp/comp_isepdgt.pyx":111
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:             # <<<<<<<<<<<<<<
@@ -2216,74 +2216,74 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":109
+  /* "ltfatpy/comp/comp_isepdgt.pyx":113
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  *     cdef ltfatInt N = coef.shape[1]             # <<<<<<<<<<<<<<
  *     cdef ltfatInt L = N * a
  *     cdef ltfatInt M = coef.shape[0]
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_1, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_1, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   __pyx_v_N = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":110
+  /* "ltfatpy/comp/comp_isepdgt.pyx":114
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  *     cdef ltfatInt N = coef.shape[1]
  *     cdef ltfatInt L = N * a             # <<<<<<<<<<<<<<
  *     cdef ltfatInt M = coef.shape[0]
  *     cdef ltfatInt W = coef.size // (M * N)
  */
-  __pyx_t_6 = __Pyx_PyInt_FromSize_t(__pyx_v_N); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_FromSize_t(__pyx_v_N); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_1 = PyNumber_Multiply(__pyx_t_6, __pyx_v_a); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_1 = PyNumber_Multiply(__pyx_t_6, __pyx_v_a); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_L = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":111
+  /* "ltfatpy/comp/comp_isepdgt.pyx":115
  *     cdef ltfatInt N = coef.shape[1]
  *     cdef ltfatInt L = N * a
  *     cdef ltfatInt M = coef.shape[0]             # <<<<<<<<<<<<<<
  *     cdef ltfatInt W = coef.size // (M * N)
  *     if W > 1 and coef.ndim == 2:
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_1, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 111, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_1, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 111, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   __pyx_v_M = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":112
+  /* "ltfatpy/comp/comp_isepdgt.pyx":116
  *     cdef ltfatInt L = N * a
  *     cdef ltfatInt M = coef.shape[0]
  *     cdef ltfatInt W = coef.size // (M * N)             # <<<<<<<<<<<<<<
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")
  */
-  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_size); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 112, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_size); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 116, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_1 = __Pyx_PyInt_FromSize_t((__pyx_v_M * __pyx_v_N)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyInt_FromSize_t((__pyx_v_M * __pyx_v_N)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 116, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyNumber_FloorDivide(__pyx_t_6, __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 112, __pyx_L1_error)
+  __pyx_t_2 = PyNumber_FloorDivide(__pyx_t_6, __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 116, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 112, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 116, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_W = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":113
+  /* "ltfatpy/comp/comp_isepdgt.pyx":117
  *     cdef ltfatInt M = coef.shape[0]
  *     cdef ltfatInt W = coef.size // (M * N)
  *     if W > 1 and coef.ndim == 2:             # <<<<<<<<<<<<<<
@@ -2296,31 +2296,31 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __pyx_t_4 = __pyx_t_7;
     goto __pyx_L12_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 113, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 117, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = __Pyx_PyInt_EqObjC(__pyx_t_2, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 113, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyInt_EqObjC(__pyx_t_2, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 117, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 113, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 117, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_4 = __pyx_t_7;
   __pyx_L12_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":114
+    /* "ltfatpy/comp/comp_isepdgt.pyx":118
  *     cdef ltfatInt W = coef.size // (M * N)
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")             # <<<<<<<<<<<<<<
  *     if W == 1 and coef.ndim == 3:
  *         coef = np.squeeze(coef, axis=2)
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 114, __pyx_L1_error)
+    __PYX_ERR(0, 118, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":113
+    /* "ltfatpy/comp/comp_isepdgt.pyx":117
  *     cdef ltfatInt M = coef.shape[0]
  *     cdef ltfatInt W = coef.size // (M * N)
  *     if W > 1 and coef.ndim == 2:             # <<<<<<<<<<<<<<
@@ -2329,7 +2329,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":115
+  /* "ltfatpy/comp/comp_isepdgt.pyx":119
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")
  *     if W == 1 and coef.ndim == 3:             # <<<<<<<<<<<<<<
@@ -2342,38 +2342,38 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __pyx_t_4 = __pyx_t_7;
     goto __pyx_L15_bool_binop_done;
   }
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 115, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 119, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_1, __pyx_int_3, 3, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 115, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_1, __pyx_int_3, 3, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 119, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 115, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_7 < 0)) __PYX_ERR(0, 119, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_4 = __pyx_t_7;
   __pyx_L15_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":116
+    /* "ltfatpy/comp/comp_isepdgt.pyx":120
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")
  *     if W == 1 and coef.ndim == 3:
  *         coef = np.squeeze(coef, axis=2)             # <<<<<<<<<<<<<<
  * 
  *     coef = coef.reshape(coef.size, order='F')
  */
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 116, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 120, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 116, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 120, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 116, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 120, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_coef);
     __Pyx_GIVEREF(__pyx_v_coef);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_coef);
-    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 116, __pyx_L1_error)
+    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 120, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_axis, __pyx_int_2) < 0) __PYX_ERR(0, 116, __pyx_L1_error)
-    __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 116, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_axis, __pyx_int_2) < 0) __PYX_ERR(0, 120, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 120, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2381,7 +2381,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __Pyx_DECREF_SET(__pyx_v_coef, __pyx_t_5);
     __pyx_t_5 = 0;
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":115
+    /* "ltfatpy/comp/comp_isepdgt.pyx":119
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")
  *     if W == 1 and coef.ndim == 3:             # <<<<<<<<<<<<<<
@@ -2390,26 +2390,26 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":118
+  /* "ltfatpy/comp/comp_isepdgt.pyx":122
  *         coef = np.squeeze(coef, axis=2)
  * 
  *     coef = coef.reshape(coef.size, order='F')             # <<<<<<<<<<<<<<
  * 
  *     cdef ltfatInt gl = g.shape[0]
  */
-  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_reshape); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 118, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_reshape); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
-  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_size); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 118, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_size); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 118, __pyx_L1_error)
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_6);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_6);
   __pyx_t_6 = 0;
-  __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 118, __pyx_L1_error)
+  __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 118, __pyx_L1_error)
-  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_t_5, __pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 118, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_Call(__pyx_t_5, __pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2417,77 +2417,77 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
   __Pyx_DECREF_SET(__pyx_v_coef, __pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":120
+  /* "ltfatpy/comp/comp_isepdgt.pyx":124
  *     coef = coef.reshape(coef.size, order='F')
  * 
  *     cdef ltfatInt gl = g.shape[0]             # <<<<<<<<<<<<<<
  * 
  *     if g.ndim > 1:
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_1, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_1, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 124, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   __pyx_v_gl = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":122
+  /* "ltfatpy/comp/comp_isepdgt.pyx":126
  *     cdef ltfatInt gl = g.shape[0]
  * 
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  */
-  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_6, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_6, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":123
+    /* "ltfatpy/comp/comp_isepdgt.pyx":127
  * 
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if g.ndim == 2:
  */
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_6 = PyObject_RichCompare(__pyx_t_1, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_6 = PyObject_RichCompare(__pyx_t_1, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_6); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_isepdgt.pyx":124
+      /* "ltfatpy/comp/comp_isepdgt.pyx":128
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))             # <<<<<<<<<<<<<<
  *         if g.ndim == 2:
  *             gl = gl * g.shape[1]
  */
-      __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_v_g);
       __Pyx_GIVEREF(__pyx_v_g);
       PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_g);
-      __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_3 = __Pyx_PyInt_SubtractObjC(__pyx_t_5, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyInt_SubtractObjC(__pyx_t_5, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_INCREF(__pyx_int_2);
       __Pyx_GIVEREF(__pyx_int_2);
@@ -2495,12 +2495,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       __Pyx_GIVEREF(__pyx_t_3);
       PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_3);
       __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_5, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_5, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_axis, __pyx_t_3) < 0) __PYX_ERR(0, 124, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_axis, __pyx_t_3) < 0) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_6, __pyx_t_2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_6, __pyx_t_2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2508,7 +2508,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       __Pyx_DECREF_SET(__pyx_v_g, __pyx_t_3);
       __pyx_t_3 = 0;
 
-      /* "ltfatpy/comp/comp_isepdgt.pyx":123
+      /* "ltfatpy/comp/comp_isepdgt.pyx":127
  * 
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2517,45 +2517,45 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
     }
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":125
+    /* "ltfatpy/comp/comp_isepdgt.pyx":129
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if g.ndim == 2:             # <<<<<<<<<<<<<<
  *             gl = gl * g.shape[1]
  *         g = g(gl, order='F')
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_3, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_3, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_isepdgt.pyx":126
+      /* "ltfatpy/comp/comp_isepdgt.pyx":130
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if g.ndim == 2:
  *             gl = gl * g.shape[1]             # <<<<<<<<<<<<<<
  *         g = g(gl, order='F')
  *     res = np.ndarray((L * W), dtype=np.complex128)
  */
-      __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_3, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_GetItemInt(__pyx_t_3, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = PyNumber_Multiply(__pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_3 = PyNumber_Multiply(__pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_3); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_3); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __pyx_v_gl = __pyx_t_8;
 
-      /* "ltfatpy/comp/comp_isepdgt.pyx":125
+      /* "ltfatpy/comp/comp_isepdgt.pyx":129
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if g.ndim == 2:             # <<<<<<<<<<<<<<
@@ -2564,31 +2564,31 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
     }
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":127
+    /* "ltfatpy/comp/comp_isepdgt.pyx":131
  *         if g.ndim == 2:
  *             gl = gl * g.shape[1]
  *         g = g(gl, order='F')             # <<<<<<<<<<<<<<
  *     res = np.ndarray((L * W), dtype=np.complex128)
  *     if gl < L:
  */
-    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_GIVEREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 127, __pyx_L1_error)
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_v_g, __pyx_t_6, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 127, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 131, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_v_g, __pyx_t_6, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF_SET(__pyx_v_g, __pyx_t_2);
     __pyx_t_2 = 0;
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":122
+    /* "ltfatpy/comp/comp_isepdgt.pyx":126
  *     cdef ltfatInt gl = g.shape[0]
  * 
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2597,35 +2597,35 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":128
+  /* "ltfatpy/comp/comp_isepdgt.pyx":132
  *             gl = gl * g.shape[1]
  *         g = g(gl, order='F')
  *     res = np.ndarray((L * W), dtype=np.complex128)             # <<<<<<<<<<<<<<
  *     if gl < L:
  *         comp_idgt_fb_d(coef, g, L, gl, W, a, M, pt, res)
  */
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_GIVEREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_2);
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_complex128); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_complex128); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_dtype, __pyx_t_5) < 0) __PYX_ERR(0, 128, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_dtype, __pyx_t_5) < 0) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_6, __pyx_t_2); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_6, __pyx_t_2); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2633,7 +2633,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
   __pyx_v_res = __pyx_t_5;
   __pyx_t_5 = 0;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":129
+  /* "ltfatpy/comp/comp_isepdgt.pyx":133
  *         g = g(gl, order='F')
  *     res = np.ndarray((L * W), dtype=np.complex128)
  *     if gl < L:             # <<<<<<<<<<<<<<
@@ -2643,7 +2643,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
   __pyx_t_4 = ((__pyx_v_gl < __pyx_v_L) != 0);
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":130
+    /* "ltfatpy/comp/comp_isepdgt.pyx":134
  *     res = np.ndarray((L * W), dtype=np.complex128)
  *     if gl < L:
  *         comp_idgt_fb_d(coef, g, L, gl, W, a, M, pt, res)             # <<<<<<<<<<<<<<
@@ -2651,14 +2651,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  *             return np.reshape(res, (L, W), order='F')
  */
     __pyx_t_9 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_coef);
-    if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 130, __pyx_L1_error)
+    if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
     __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_g);
-    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 130, __pyx_L1_error)
-    __pyx_t_11 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 130, __pyx_L1_error)
-    __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 130, __pyx_L1_error)
+    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __pyx_t_11 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
+    __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
     __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 130, __pyx_L1_error)
-    __pyx_t_5 = __pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_fb_d(__pyx_t_9, __pyx_t_10, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_11, __pyx_v_M, __pyx_t_12, __pyx_t_13); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 130, __pyx_L1_error)
+    if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
+    __pyx_t_5 = __pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_fb_d(__pyx_t_9, __pyx_t_10, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_11, __pyx_v_M, __pyx_t_12, __pyx_t_13); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 134, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     __PYX_XDEC_MEMVIEW(&__pyx_t_9, 1);
     __pyx_t_9.memview = NULL;
@@ -2671,7 +2671,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __pyx_t_13.data = NULL;
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":131
+    /* "ltfatpy/comp/comp_isepdgt.pyx":135
  *     if gl < L:
  *         comp_idgt_fb_d(coef, g, L, gl, W, a, M, pt, res)
  *         if W > 1:             # <<<<<<<<<<<<<<
@@ -2681,7 +2681,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __pyx_t_4 = ((__pyx_v_W > 1) != 0);
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_isepdgt.pyx":132
+      /* "ltfatpy/comp/comp_isepdgt.pyx":136
  *         comp_idgt_fb_d(coef, g, L, gl, W, a, M, pt, res)
  *         if W > 1:
  *             return np.reshape(res, (L, W), order='F')             # <<<<<<<<<<<<<<
@@ -2689,16 +2689,16 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  *     comp_idgt_long_d(coef, g, L, W, a, M, pt, res)
  */
       __Pyx_XDECREF(__pyx_r);
-      __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_reshape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_reshape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __pyx_t_5 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_5 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_6 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_GIVEREF(__pyx_t_5);
       PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_5);
@@ -2706,7 +2706,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_6);
       __pyx_t_5 = 0;
       __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_v_res);
       __Pyx_GIVEREF(__pyx_v_res);
@@ -2714,10 +2714,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       __Pyx_GIVEREF(__pyx_t_3);
       PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_3);
       __pyx_t_3 = 0;
-      __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 132, __pyx_L1_error)
-      __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_6, __pyx_t_3); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 132, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 136, __pyx_L1_error)
+      __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_6, __pyx_t_3); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2726,7 +2726,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
       __pyx_t_5 = 0;
       goto __pyx_L0;
 
-      /* "ltfatpy/comp/comp_isepdgt.pyx":131
+      /* "ltfatpy/comp/comp_isepdgt.pyx":135
  *     if gl < L:
  *         comp_idgt_fb_d(coef, g, L, gl, W, a, M, pt, res)
  *         if W > 1:             # <<<<<<<<<<<<<<
@@ -2735,7 +2735,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
     }
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":133
+    /* "ltfatpy/comp/comp_isepdgt.pyx":137
  *         if W > 1:
  *             return np.reshape(res, (L, W), order='F')
  *         return res             # <<<<<<<<<<<<<<
@@ -2747,7 +2747,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __pyx_r = __pyx_v_res;
     goto __pyx_L0;
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":129
+    /* "ltfatpy/comp/comp_isepdgt.pyx":133
  *         g = g(gl, order='F')
  *     res = np.ndarray((L * W), dtype=np.complex128)
  *     if gl < L:             # <<<<<<<<<<<<<<
@@ -2756,7 +2756,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":134
+  /* "ltfatpy/comp/comp_isepdgt.pyx":138
  *             return np.reshape(res, (L, W), order='F')
  *         return res
  *     comp_idgt_long_d(coef, g, L, W, a, M, pt, res)             # <<<<<<<<<<<<<<
@@ -2764,14 +2764,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  *         return np.reshape(res, (L, W), order='F')
  */
   __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_coef);
-  if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
+  if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
   __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_g);
-  if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
-  __pyx_t_11 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
-  __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
+  if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
+  __pyx_t_11 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
+  __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
   __pyx_t_9 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-  if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
-  __pyx_t_5 = __pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_long_d(__pyx_t_13, __pyx_t_10, __pyx_v_L, __pyx_v_W, __pyx_t_11, __pyx_v_M, __pyx_t_12, __pyx_t_9); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 134, __pyx_L1_error)
+  if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
+  __pyx_t_5 = __pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_idgt_long_d(__pyx_t_13, __pyx_t_10, __pyx_v_L, __pyx_v_W, __pyx_t_11, __pyx_v_M, __pyx_t_12, __pyx_t_9); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 138, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __PYX_XDEC_MEMVIEW(&__pyx_t_13, 1);
   __pyx_t_13.memview = NULL;
@@ -2784,7 +2784,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
   __pyx_t_9.data = NULL;
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":135
+  /* "ltfatpy/comp/comp_isepdgt.pyx":139
  *         return res
  *     comp_idgt_long_d(coef, g, L, W, a, M, pt, res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2794,23 +2794,23 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
   __pyx_t_4 = ((__pyx_v_W > 1) != 0);
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":136
+    /* "ltfatpy/comp/comp_isepdgt.pyx":140
  *     comp_idgt_long_d(coef, g, L, W, a, M, pt, res)
  *     if W > 1:
  *         return np.reshape(res, (L, W), order='F')             # <<<<<<<<<<<<<<
  *     return res
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 136, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 136, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 136, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_5);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_5);
@@ -2818,7 +2818,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_6);
     __pyx_t_5 = 0;
     __pyx_t_6 = 0;
-    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 136, __pyx_L1_error)
+    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_INCREF(__pyx_v_res);
     __Pyx_GIVEREF(__pyx_v_res);
@@ -2826,10 +2826,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __Pyx_GIVEREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
+    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 136, __pyx_L1_error)
-    __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_6, __pyx_t_2); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 136, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_6, __pyx_t_2); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2838,7 +2838,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
     __pyx_t_5 = 0;
     goto __pyx_L0;
 
-    /* "ltfatpy/comp/comp_isepdgt.pyx":135
+    /* "ltfatpy/comp/comp_isepdgt.pyx":139
  *         return res
  *     comp_idgt_long_d(coef, g, L, W, a, M, pt, res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2847,7 +2847,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":137
+  /* "ltfatpy/comp/comp_isepdgt.pyx":141
  *     if W > 1:
  *         return np.reshape(res, (L, W), order='F')
  *     return res             # <<<<<<<<<<<<<<
@@ -2857,7 +2857,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(PyObject *__
   __pyx_r = __pyx_v_res;
   goto __pyx_L0;
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":92
+  /* "ltfatpy/comp/comp_isepdgt.pyx":96
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_isepdgt(coef, g, a, pt):             # <<<<<<<<<<<<<<
@@ -2919,21 +2919,21 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_12comp_isepdgt_1comp_isepdgt(PyObject *
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_g)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_isepdgt", 1, 4, 4, 1); __PYX_ERR(0, 92, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_isepdgt", 1, 4, 4, 1); __PYX_ERR(0, 96, __pyx_L3_error)
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_a)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_isepdgt", 1, 4, 4, 2); __PYX_ERR(0, 92, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_isepdgt", 1, 4, 4, 2); __PYX_ERR(0, 96, __pyx_L3_error)
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_pt)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_isepdgt", 1, 4, 4, 3); __PYX_ERR(0, 92, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_isepdgt", 1, 4, 4, 3); __PYX_ERR(0, 96, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_isepdgt") < 0)) __PYX_ERR(0, 92, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_isepdgt") < 0)) __PYX_ERR(0, 96, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 4) {
       goto __pyx_L5_argtuple_error;
@@ -2950,7 +2950,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_12comp_isepdgt_1comp_isepdgt(PyObject *
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_isepdgt", 1, 4, 4, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 92, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_isepdgt", 1, 4, 4, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 96, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_isepdgt.comp_isepdgt", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2969,7 +2969,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(CYTHON_UNUS
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("comp_isepdgt", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(__pyx_v_coef, __pyx_v_g, __pyx_v_a, __pyx_v_pt, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_12comp_isepdgt_comp_isepdgt(__pyx_v_coef, __pyx_v_g, __pyx_v_a, __pyx_v_pt, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -15413,8 +15413,8 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 106, __pyx_L1_error)
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 124, __pyx_L1_error)
+  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 128, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 131, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(1, 146, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(1, 149, __pyx_L1_error)
@@ -15430,36 +15430,36 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":106
+  /* "ltfatpy/comp/comp_isepdgt.pyx":110
  * 
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")             # <<<<<<<<<<<<<<
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  */
-  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_pt_should_be_0_FREQINV_or_1_TIME); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_pt_should_be_0_FREQINV_or_1_TIME); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":108
+  /* "ltfatpy/comp/comp_isepdgt.pyx":112
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")             # <<<<<<<<<<<<<<
  *     cdef ltfatInt N = coef.shape[1]
  *     cdef ltfatInt L = N * a
  */
-  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_Dimensions_of_dgt_coefficients_a); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_Dimensions_of_dgt_coefficients_a); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 112, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":114
+  /* "ltfatpy/comp/comp_isepdgt.pyx":118
  *     cdef ltfatInt W = coef.size // (M * N)
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")             # <<<<<<<<<<<<<<
  *     if W == 1 and coef.ndim == 3:
  *         coef = np.squeeze(coef, axis=2)
  */
-  __pyx_tuple__3 = PyTuple_Pack(1, __pyx_kp_s_Dimensions_of_dgt_coefficients_a_2); if (unlikely(!__pyx_tuple__3)) __PYX_ERR(0, 114, __pyx_L1_error)
+  __pyx_tuple__3 = PyTuple_Pack(1, __pyx_kp_s_Dimensions_of_dgt_coefficients_a_2); if (unlikely(!__pyx_tuple__3)) __PYX_ERR(0, 118, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__3);
   __Pyx_GIVEREF(__pyx_tuple__3);
 
@@ -15810,22 +15810,22 @@ PyMODINIT_FUNC PyInit_comp_isepdgt(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_isepdgt.pyx":62
+  /* "ltfatpy/comp/comp_isepdgt.pyx":66
  * 
  * import cython
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, dgt_phasetype, idgt_fb_d, idgt_long_d
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   /* "ltfatpy/comp/comp_isepdgt.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/ltfatpy/comp/comp_isepdgtreal.c b/ltfatpy/comp/comp_isepdgtreal.c
index b9eb93040b1ee2cce79061a8a57a9920a451d4de..521f6734e173360b85d7b416ffa969d46f2ee66a 100644
--- a/ltfatpy/comp/comp_isepdgtreal.c
+++ b/ltfatpy/comp/comp_isepdgtreal.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -1833,7 +1833,7 @@ static PyObject *__pyx_tuple__21;
 static PyObject *__pyx_tuple__22;
 static PyObject *__pyx_tuple__23;
 
-/* "ltfatpy/comp/comp_isepdgtreal.pyx":71
+/* "ltfatpy/comp/comp_isepdgtreal.pyx":75
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_idgtreal_long_d(const double complex[:] coef, const double[:] g,             # <<<<<<<<<<<<<<
@@ -1849,7 +1849,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_long_d(
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_idgtreal_long_d", 0);
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":75
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":79
  *                           const dgt_phasetype ptype, double[:] out):
  *     """ Internal function, do not use it """
  *     idgtreal_long_d(&coef[0], &g[0], L, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1861,7 +1861,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_long_d(
   __pyx_t_3 = 0;
   idgtreal_long_d((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_coef.data + __pyx_t_1 * __pyx_v_coef.strides[0]) )))), (&(*((double *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((double *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":71
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":75
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_idgtreal_long_d(const double complex[:] coef, const double[:] g,             # <<<<<<<<<<<<<<
@@ -1876,7 +1876,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_long_d(
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_isepdgtreal.pyx":81
+/* "ltfatpy/comp/comp_isepdgtreal.pyx":85
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_idgtreal_fb_d(const double complex[:] coef, const double[:] g,             # <<<<<<<<<<<<<<
@@ -1892,7 +1892,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_fb_d(__
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_idgtreal_fb_d", 0);
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":85
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":89
  *                         const int M, const dgt_phasetype ptype, double[:] out):
  *     """ Internal function, do not use it """
  *     idgtreal_fb_d(&coef[0], &g[0], L, gl, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1904,7 +1904,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_fb_d(__
   __pyx_t_3 = 0;
   idgtreal_fb_d((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_coef.data + __pyx_t_1 * __pyx_v_coef.strides[0]) )))), (&(*((double *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((double *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":81
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":85
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_idgtreal_fb_d(const double complex[:] coef, const double[:] g,             # <<<<<<<<<<<<<<
@@ -1919,7 +1919,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_fb_d(__
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_isepdgtreal.pyx":91
+/* "ltfatpy/comp/comp_isepdgtreal.pyx":95
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_isepdgtreal(coef, g, a, M, pt):             # <<<<<<<<<<<<<<
@@ -1957,44 +1957,44 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
   __Pyx_INCREF(__pyx_v_coef);
   __Pyx_INCREF(__pyx_v_g);
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":100
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":104
  *     """
  * 
  *     if (coef.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
  *         raise TypeError("coef data should be numpy.complex128")
  *     if (g.dtype.type != np.float64):
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 100, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 104, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":101
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":105
  * 
  *     if (coef.dtype.type != np.complex128):
  *         raise TypeError("coef data should be numpy.complex128")             # <<<<<<<<<<<<<<
  *     if (g.dtype.type != np.float64):
  *         raise TypeError("g data should be numpy.float64")
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 101, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 101, __pyx_L1_error)
+    __PYX_ERR(0, 105, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":100
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":104
  *     """
  * 
  *     if (coef.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
@@ -2003,44 +2003,44 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":102
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":106
  *     if (coef.dtype.type != np.complex128):
  *         raise TypeError("coef data should be numpy.complex128")
  *     if (g.dtype.type != np.float64):             # <<<<<<<<<<<<<<
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != 0 and pt != 1:
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 102, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 106, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":103
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":107
  *         raise TypeError("coef data should be numpy.complex128")
  *     if (g.dtype.type != np.float64):
  *         raise TypeError("g data should be numpy.float64")             # <<<<<<<<<<<<<<
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 103, __pyx_L1_error)
+    __PYX_ERR(0, 107, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":102
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":106
  *     if (coef.dtype.type != np.complex128):
  *         raise TypeError("coef data should be numpy.complex128")
  *     if (g.dtype.type != np.float64):             # <<<<<<<<<<<<<<
@@ -2049,42 +2049,42 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":104
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":108
  *     if (g.dtype.type != np.float64):
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != 0 and pt != 1:             # <<<<<<<<<<<<<<
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_int_0, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_int_0, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_4 = __pyx_t_5;
     goto __pyx_L6_bool_binop_done;
   }
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_int_1, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_int_1, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_4 = __pyx_t_5;
   __pyx_L6_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":105
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":109
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")             # <<<<<<<<<<<<<<
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 105, __pyx_L1_error)
+    __PYX_ERR(0, 109, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":104
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":108
  *     if (g.dtype.type != np.float64):
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != 0 and pt != 1:             # <<<<<<<<<<<<<<
@@ -2093,48 +2093,48 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":106
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":110
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:             # <<<<<<<<<<<<<<
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  *     cdef ltfatInt N = coef.shape[1]
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_int_1, Py_LE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_int_1, Py_LE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (!__pyx_t_5) {
   } else {
     __pyx_t_4 = __pyx_t_5;
     goto __pyx_L9_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_int_3, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_int_3, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_4 = __pyx_t_5;
   __pyx_L9_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":107
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":111
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")             # <<<<<<<<<<<<<<
  *     cdef ltfatInt N = coef.shape[1]
  *     cdef ltfatInt L = N * a
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__4, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 107, __pyx_L1_error)
+    __PYX_ERR(0, 111, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":106
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":110
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:             # <<<<<<<<<<<<<<
@@ -2143,97 +2143,97 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":108
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":112
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  *     cdef ltfatInt N = coef.shape[1]             # <<<<<<<<<<<<<<
  *     cdef ltfatInt L = N * a
  *     cdef ltfatInt M2 = coef.shape[0]
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 112, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 112, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_N = __pyx_t_6;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":109
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":113
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  *     cdef ltfatInt N = coef.shape[1]
  *     cdef ltfatInt L = N * a             # <<<<<<<<<<<<<<
  *     cdef ltfatInt M2 = coef.shape[0]
  *     if M2 != (M//2 + 1):
  */
-  __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_N); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_N); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyNumber_Multiply(__pyx_t_2, __pyx_v_a); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_1 = PyNumber_Multiply(__pyx_t_2, __pyx_v_a); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 109, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_L = __pyx_t_6;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":110
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":114
  *     cdef ltfatInt N = coef.shape[1]
  *     cdef ltfatInt L = N * a
  *     cdef ltfatInt M2 = coef.shape[0]             # <<<<<<<<<<<<<<
  *     if M2 != (M//2 + 1):
  *         raise TypeError("Mismatch between the specified number of channels " +
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_shape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_1, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_M2 = __pyx_t_6;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":111
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":115
  *     cdef ltfatInt L = N * a
  *     cdef ltfatInt M2 = coef.shape[0]
  *     if M2 != (M//2 + 1):             # <<<<<<<<<<<<<<
  *         raise TypeError("Mismatch between the specified number of channels " +
  *                         "and the size of the input coefficients.")
  */
-  __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_M2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_M2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = __Pyx_PyInt_FloorDivideObjC(__pyx_v_M, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyInt_FloorDivideObjC(__pyx_v_M, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyInt_AddObjC(__pyx_t_1, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 111, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_AddObjC(__pyx_t_1, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 111, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 115, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":112
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":116
  *     cdef ltfatInt M2 = coef.shape[0]
  *     if M2 != (M//2 + 1):
  *         raise TypeError("Mismatch between the specified number of channels " +             # <<<<<<<<<<<<<<
  *                         "and the size of the input coefficients.")
  *     cdef ltfatInt W = coef.size // (M2 * N)
  */
-    __pyx_t_1 = PyNumber_Add(__pyx_kp_s_Mismatch_between_the_specified_n, __pyx_kp_s_and_the_size_of_the_input_coeffi); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_1 = PyNumber_Add(__pyx_kp_s_Mismatch_between_the_specified_n, __pyx_kp_s_and_the_size_of_the_input_coeffi); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 116, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 116, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_t_3, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_t_3, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 116, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 112, __pyx_L1_error)
+    __PYX_ERR(0, 116, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":111
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":115
  *     cdef ltfatInt L = N * a
  *     cdef ltfatInt M2 = coef.shape[0]
  *     if M2 != (M//2 + 1):             # <<<<<<<<<<<<<<
@@ -2242,26 +2242,26 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":114
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":118
  *         raise TypeError("Mismatch between the specified number of channels " +
  *                         "and the size of the input coefficients.")
  *     cdef ltfatInt W = coef.size // (M2 * N)             # <<<<<<<<<<<<<<
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_size); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 114, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_size); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 118, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyInt_FromSize_t((__pyx_v_M2 * __pyx_v_N)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 114, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_FromSize_t((__pyx_v_M2 * __pyx_v_N)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 118, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = PyNumber_FloorDivide(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 114, __pyx_L1_error)
+  __pyx_t_2 = PyNumber_FloorDivide(__pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 118, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 114, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 118, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_W = __pyx_t_6;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":115
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":119
  *                         "and the size of the input coefficients.")
  *     cdef ltfatInt W = coef.size // (M2 * N)
  *     if W > 1 and coef.ndim == 2:             # <<<<<<<<<<<<<<
@@ -2274,31 +2274,31 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __pyx_t_4 = __pyx_t_5;
     goto __pyx_L13_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 115, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 119, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyInt_EqObjC(__pyx_t_2, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 115, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_EqObjC(__pyx_t_2, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 119, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 115, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 119, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_t_4 = __pyx_t_5;
   __pyx_L13_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":116
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":120
  *     cdef ltfatInt W = coef.size // (M2 * N)
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")             # <<<<<<<<<<<<<<
  *     if W == 1 and coef.ndim == 3:
  *         coef = np.squeeze(coef, axis=2)
  */
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__5, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 116, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__5, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 120, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_Raise(__pyx_t_3, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __PYX_ERR(0, 116, __pyx_L1_error)
+    __PYX_ERR(0, 120, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":115
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":119
  *                         "and the size of the input coefficients.")
  *     cdef ltfatInt W = coef.size // (M2 * N)
  *     if W > 1 and coef.ndim == 2:             # <<<<<<<<<<<<<<
@@ -2307,7 +2307,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":117
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":121
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")
  *     if W == 1 and coef.ndim == 3:             # <<<<<<<<<<<<<<
@@ -2320,38 +2320,38 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __pyx_t_4 = __pyx_t_5;
     goto __pyx_L16_bool_binop_done;
   }
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_3, __pyx_int_3, 3, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_3, __pyx_int_3, 3, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 117, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 121, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_4 = __pyx_t_5;
   __pyx_L16_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":118
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":122
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")
  *     if W == 1 and coef.ndim == 3:
  *         coef = np.squeeze(coef, axis=2)             # <<<<<<<<<<<<<<
  * 
  *     coef_combined = coef.reshape(coef.size, order='F')
  */
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_coef);
     __Pyx_GIVEREF(__pyx_v_coef);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_coef);
-    __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 118, __pyx_L1_error)
+    __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_axis, __pyx_int_2) < 0) __PYX_ERR(0, 118, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 118, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_axis, __pyx_int_2) < 0) __PYX_ERR(0, 122, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 122, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2359,7 +2359,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __Pyx_DECREF_SET(__pyx_v_coef, __pyx_t_7);
     __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":117
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":121
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")
  *     if W == 1 and coef.ndim == 3:             # <<<<<<<<<<<<<<
@@ -2368,26 +2368,26 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":120
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":124
  *         coef = np.squeeze(coef, axis=2)
  * 
  *     coef_combined = coef.reshape(coef.size, order='F')             # <<<<<<<<<<<<<<
  * 
  *     cdef ltfatInt gl = g.shape[0]
  */
-  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_size); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_coef, __pyx_n_s_size); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 124, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 120, __pyx_L1_error)
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 120, __pyx_L1_error)
-  __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 120, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 124, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2395,77 +2395,77 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
   __pyx_v_coef_combined = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":122
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":126
  *     coef_combined = coef.reshape(coef.size, order='F')
  * 
  *     cdef ltfatInt gl = g.shape[0]             # <<<<<<<<<<<<<<
  * 
  *     if g.ndim > 1:
  */
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_v_gl = __pyx_t_6;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":124
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":128
  *     cdef ltfatInt gl = g.shape[0]
  * 
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_1, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_1, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 124, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 128, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":125
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":129
  * 
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if g.ndim == 2:
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_isepdgtreal.pyx":126
+      /* "ltfatpy/comp/comp_isepdgtreal.pyx":130
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))             # <<<<<<<<<<<<<<
  *         if g.ndim == 2:
  *             gl = gl * g.shape[1]
  */
-      __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(__pyx_v_g);
       __Pyx_GIVEREF(__pyx_v_g);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_g);
-      __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_8 = __Pyx_PyInt_SubtractObjC(__pyx_t_7, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyInt_SubtractObjC(__pyx_t_7, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_INCREF(__pyx_int_2);
       __Pyx_GIVEREF(__pyx_int_2);
@@ -2473,12 +2473,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
       __Pyx_GIVEREF(__pyx_t_8);
       PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_8);
       __pyx_t_8 = 0;
-      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_axis, __pyx_t_8) < 0) __PYX_ERR(0, 126, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_axis, __pyx_t_8) < 0) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -2486,7 +2486,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
       __Pyx_DECREF_SET(__pyx_v_g, __pyx_t_8);
       __pyx_t_8 = 0;
 
-      /* "ltfatpy/comp/comp_isepdgtreal.pyx":125
+      /* "ltfatpy/comp/comp_isepdgtreal.pyx":129
  * 
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2495,45 +2495,45 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
     }
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":127
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":131
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if g.ndim == 2:             # <<<<<<<<<<<<<<
  *             gl = gl * g.shape[1]
  *         g_combined = g.reshape(gl, order='F')
  */
-    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_8, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_8, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_isepdgtreal.pyx":128
+      /* "ltfatpy/comp/comp_isepdgtreal.pyx":132
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if g.ndim == 2:
  *             gl = gl * g.shape[1]             # <<<<<<<<<<<<<<
  *         g_combined = g.reshape(gl, order='F')
  *     else:
  */
-      __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 128, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 132, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_8, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_GetItemInt(__pyx_t_8, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 132, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyNumber_Multiply(__pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 128, __pyx_L1_error)
+      __pyx_t_8 = PyNumber_Multiply(__pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 132, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_8); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 128, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_8); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 132, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __pyx_v_gl = __pyx_t_6;
 
-      /* "ltfatpy/comp/comp_isepdgtreal.pyx":127
+      /* "ltfatpy/comp/comp_isepdgtreal.pyx":131
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if g.ndim == 2:             # <<<<<<<<<<<<<<
@@ -2542,26 +2542,26 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
     }
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":129
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":133
  *         if g.ndim == 2:
  *             gl = gl * g.shape[1]
  *         g_combined = g.reshape(gl, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         g_combined = g
  */
-    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 129, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 133, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_8);
-    __pyx_t_1 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 129, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 133, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 129, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 133, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 129, __pyx_L1_error)
+    __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 133, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 129, __pyx_L1_error)
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_8, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 129, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 133, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_8, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 133, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2569,7 +2569,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __pyx_v_g_combined = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":124
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":128
  *     cdef ltfatInt gl = g.shape[0]
  * 
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2579,7 +2579,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     goto __pyx_L18;
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":131
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":135
  *         g_combined = g.reshape(gl, order='F')
  *     else:
  *         g_combined = g             # <<<<<<<<<<<<<<
@@ -2592,35 +2592,35 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
   }
   __pyx_L18:;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":132
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":136
  *     else:
  *         g_combined = g
  *     res = np.ndarray((L * W), dtype=np.float64)             # <<<<<<<<<<<<<<
  *     if gl < L:
  *         comp_idgtreal_fb_d(coef_combined, g_combined, L, gl, W, a, M, pt, res)
  */
-  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_3);
   __pyx_t_3 = 0;
-  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_8);
-  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_8, __pyx_n_s_float64); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_8, __pyx_n_s_float64); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-  if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_dtype, __pyx_t_7) < 0) __PYX_ERR(0, 132, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_dtype, __pyx_t_7) < 0) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2628,7 +2628,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
   __pyx_v_res = __pyx_t_7;
   __pyx_t_7 = 0;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":133
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":137
  *         g_combined = g
  *     res = np.ndarray((L * W), dtype=np.float64)
  *     if gl < L:             # <<<<<<<<<<<<<<
@@ -2638,7 +2638,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
   __pyx_t_4 = ((__pyx_v_gl < __pyx_v_L) != 0);
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":134
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":138
  *     res = np.ndarray((L * W), dtype=np.float64)
  *     if gl < L:
  *         comp_idgtreal_fb_d(coef_combined, g_combined, L, gl, W, a, M, pt, res)             # <<<<<<<<<<<<<<
@@ -2646,15 +2646,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  *             return np.reshape(res, (L, W), order='F')
  */
     __pyx_t_9 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_coef_combined);
-    if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
+    if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
     __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_g_combined);
-    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __pyx_t_11 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
-    __pyx_t_12 = __Pyx_PyInt_As_int(__pyx_v_M); if (unlikely((__pyx_t_12 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
-    __pyx_t_13 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
+    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_11 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_12 = __Pyx_PyInt_As_int(__pyx_v_M); if (unlikely((__pyx_t_12 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_13 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
     __pyx_t_14 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_res);
-    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_fb_d(__pyx_t_9, __pyx_t_10, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_11, __pyx_t_12, __pyx_t_13, __pyx_t_14); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 134, __pyx_L1_error)
+    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_fb_d(__pyx_t_9, __pyx_t_10, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_11, __pyx_t_12, __pyx_t_13, __pyx_t_14); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 138, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __PYX_XDEC_MEMVIEW(&__pyx_t_9, 1);
     __pyx_t_9.memview = NULL;
@@ -2667,7 +2667,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __pyx_t_14.data = NULL;
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":135
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":139
  *     if gl < L:
  *         comp_idgtreal_fb_d(coef_combined, g_combined, L, gl, W, a, M, pt, res)
  *         if W > 1:             # <<<<<<<<<<<<<<
@@ -2677,7 +2677,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __pyx_t_4 = ((__pyx_v_W > 1) != 0);
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_isepdgtreal.pyx":136
+      /* "ltfatpy/comp/comp_isepdgtreal.pyx":140
  *         comp_idgtreal_fb_d(coef_combined, g_combined, L, gl, W, a, M, pt, res)
  *         if W > 1:
  *             return np.reshape(res, (L, W), order='F')             # <<<<<<<<<<<<<<
@@ -2685,16 +2685,16 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  *     comp_idgtreal_long_d(coef_combined, g_combined, L, W, a, M, pt, res)
  */
       __Pyx_XDECREF(__pyx_r);
-      __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 140, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 140, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 136, __pyx_L1_error)
+      __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_GIVEREF(__pyx_t_7);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_7);
@@ -2702,7 +2702,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
       PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_2);
       __pyx_t_7 = 0;
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
+      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(__pyx_v_res);
       __Pyx_GIVEREF(__pyx_v_res);
@@ -2710,10 +2710,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
       __Pyx_GIVEREF(__pyx_t_1);
       PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1);
       __pyx_t_1 = 0;
-      __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 136, __pyx_L1_error)
+      __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 136, __pyx_L1_error)
-      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 140, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2722,7 +2722,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
       __pyx_t_7 = 0;
       goto __pyx_L0;
 
-      /* "ltfatpy/comp/comp_isepdgtreal.pyx":135
+      /* "ltfatpy/comp/comp_isepdgtreal.pyx":139
  *     if gl < L:
  *         comp_idgtreal_fb_d(coef_combined, g_combined, L, gl, W, a, M, pt, res)
  *         if W > 1:             # <<<<<<<<<<<<<<
@@ -2731,7 +2731,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
     }
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":137
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":141
  *         if W > 1:
  *             return np.reshape(res, (L, W), order='F')
  *         return res             # <<<<<<<<<<<<<<
@@ -2743,7 +2743,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __pyx_r = __pyx_v_res;
     goto __pyx_L0;
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":133
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":137
  *         g_combined = g
  *     res = np.ndarray((L * W), dtype=np.float64)
  *     if gl < L:             # <<<<<<<<<<<<<<
@@ -2752,7 +2752,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":138
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":142
  *             return np.reshape(res, (L, W), order='F')
  *         return res
  *     comp_idgtreal_long_d(coef_combined, g_combined, L, W, a, M, pt, res)             # <<<<<<<<<<<<<<
@@ -2760,15 +2760,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  *         return np.reshape(res, (L, W), order='F')
  */
   __pyx_t_9 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_coef_combined);
-  if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
+  if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 142, __pyx_L1_error)
   __pyx_t_14 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_g_combined);
-  if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
-  __pyx_t_12 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_12 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
-  __pyx_t_11 = __Pyx_PyInt_As_int(__pyx_v_M); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
-  __pyx_t_13 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
+  if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 142, __pyx_L1_error)
+  __pyx_t_12 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_12 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 142, __pyx_L1_error)
+  __pyx_t_11 = __Pyx_PyInt_As_int(__pyx_v_M); if (unlikely((__pyx_t_11 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 142, __pyx_L1_error)
+  __pyx_t_13 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 142, __pyx_L1_error)
   __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_res);
-  if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
-  __pyx_t_7 = __pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_long_d(__pyx_t_9, __pyx_t_14, __pyx_v_L, __pyx_v_W, __pyx_t_12, __pyx_t_11, __pyx_t_13, __pyx_t_10); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 138, __pyx_L1_error)
+  if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 142, __pyx_L1_error)
+  __pyx_t_7 = __pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_idgtreal_long_d(__pyx_t_9, __pyx_t_14, __pyx_v_L, __pyx_v_W, __pyx_t_12, __pyx_t_11, __pyx_t_13, __pyx_t_10); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 142, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __PYX_XDEC_MEMVIEW(&__pyx_t_9, 1);
   __pyx_t_9.memview = NULL;
@@ -2781,7 +2781,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
   __pyx_t_10.data = NULL;
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":139
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":143
  *         return res
  *     comp_idgtreal_long_d(coef_combined, g_combined, L, W, a, M, pt, res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2791,23 +2791,23 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
   __pyx_t_4 = ((__pyx_v_W > 1) != 0);
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":140
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":144
  *     comp_idgtreal_long_d(coef_combined, g_combined, L, W, a, M, pt, res)
  *     if W > 1:
  *         return np.reshape(res, (L, W), order='F')             # <<<<<<<<<<<<<<
  *     return res
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_7);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_7);
@@ -2815,7 +2815,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_2);
     __pyx_t_7 = 0;
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_res);
     __Pyx_GIVEREF(__pyx_v_res);
@@ -2823,10 +2823,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __Pyx_GIVEREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 140, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 140, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 144, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2835,7 +2835,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
     __pyx_t_7 = 0;
     goto __pyx_L0;
 
-    /* "ltfatpy/comp/comp_isepdgtreal.pyx":139
+    /* "ltfatpy/comp/comp_isepdgtreal.pyx":143
  *         return res
  *     comp_idgtreal_long_d(coef_combined, g_combined, L, W, a, M, pt, res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2844,7 +2844,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
  */
   }
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":141
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":145
  *     if W > 1:
  *         return np.reshape(res, (L, W), order='F')
  *     return res             # <<<<<<<<<<<<<<
@@ -2854,7 +2854,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(PyOb
   __pyx_r = __pyx_v_res;
   goto __pyx_L0;
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":91
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":95
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_isepdgtreal(coef, g, a, M, pt):             # <<<<<<<<<<<<<<
@@ -2920,26 +2920,26 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_16comp_isepdgtreal_1comp_isepdgtreal(Py
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_g)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, 1); __PYX_ERR(0, 91, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, 1); __PYX_ERR(0, 95, __pyx_L3_error)
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_a)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, 2); __PYX_ERR(0, 91, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, 2); __PYX_ERR(0, 95, __pyx_L3_error)
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_M)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, 3); __PYX_ERR(0, 91, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, 3); __PYX_ERR(0, 95, __pyx_L3_error)
         }
         case  4:
         if (likely((values[4] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_pt)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, 4); __PYX_ERR(0, 91, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, 4); __PYX_ERR(0, 95, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_isepdgtreal") < 0)) __PYX_ERR(0, 91, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_isepdgtreal") < 0)) __PYX_ERR(0, 95, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 5) {
       goto __pyx_L5_argtuple_error;
@@ -2958,7 +2958,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_16comp_isepdgtreal_1comp_isepdgtreal(Py
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 91, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_isepdgtreal", 1, 5, 5, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 95, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_isepdgtreal.comp_isepdgtreal", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2977,7 +2977,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(CYT
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("comp_isepdgtreal", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(__pyx_v_coef, __pyx_v_g, __pyx_v_a, __pyx_v_M, __pyx_v_pt, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 91, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_16comp_isepdgtreal_comp_isepdgtreal(__pyx_v_coef, __pyx_v_g, __pyx_v_a, __pyx_v_M, __pyx_v_pt, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 95, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -15426,8 +15426,8 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 101, __pyx_L1_error)
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 130, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 131, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(1, 146, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(1, 149, __pyx_L1_error)
@@ -15443,58 +15443,58 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":101
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":105
  * 
  *     if (coef.dtype.type != np.complex128):
  *         raise TypeError("coef data should be numpy.complex128")             # <<<<<<<<<<<<<<
  *     if (g.dtype.type != np.float64):
  *         raise TypeError("g data should be numpy.float64")
  */
-  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_coef_data_should_be_numpy_comple); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_coef_data_should_be_numpy_comple); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 105, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":103
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":107
  *         raise TypeError("coef data should be numpy.complex128")
  *     if (g.dtype.type != np.float64):
  *         raise TypeError("g data should be numpy.float64")             # <<<<<<<<<<<<<<
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  */
-  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":105
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":109
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != 0 and pt != 1:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")             # <<<<<<<<<<<<<<
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")
  */
-  __pyx_tuple__3 = PyTuple_Pack(1, __pyx_kp_s_pt_should_be_0_FREQINV_or_1_TIME); if (unlikely(!__pyx_tuple__3)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_tuple__3 = PyTuple_Pack(1, __pyx_kp_s_pt_should_be_0_FREQINV_or_1_TIME); if (unlikely(!__pyx_tuple__3)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__3);
   __Pyx_GIVEREF(__pyx_tuple__3);
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":107
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":111
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  *     if coef.ndim <= 1 or coef.ndim > 3:
  *         raise TypeError("Dimensions of dgt coefficients array must be 2 or 3.")             # <<<<<<<<<<<<<<
  *     cdef ltfatInt N = coef.shape[1]
  *     cdef ltfatInt L = N * a
  */
-  __pyx_tuple__4 = PyTuple_Pack(1, __pyx_kp_s_Dimensions_of_dgt_coefficients_a); if (unlikely(!__pyx_tuple__4)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_tuple__4 = PyTuple_Pack(1, __pyx_kp_s_Dimensions_of_dgt_coefficients_a); if (unlikely(!__pyx_tuple__4)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__4);
   __Pyx_GIVEREF(__pyx_tuple__4);
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":116
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":120
  *     cdef ltfatInt W = coef.size // (M2 * N)
  *     if W > 1 and coef.ndim == 2:
  *         raise TypeError("Dimensions of dgt coefficients array do not fit.")             # <<<<<<<<<<<<<<
  *     if W == 1 and coef.ndim == 3:
  *         coef = np.squeeze(coef, axis=2)
  */
-  __pyx_tuple__5 = PyTuple_Pack(1, __pyx_kp_s_Dimensions_of_dgt_coefficients_a_2); if (unlikely(!__pyx_tuple__5)) __PYX_ERR(0, 116, __pyx_L1_error)
+  __pyx_tuple__5 = PyTuple_Pack(1, __pyx_kp_s_Dimensions_of_dgt_coefficients_a_2); if (unlikely(!__pyx_tuple__5)) __PYX_ERR(0, 120, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__5);
   __Pyx_GIVEREF(__pyx_tuple__5);
 
@@ -15845,22 +15845,22 @@ PyMODINIT_FUNC PyInit_comp_isepdgtreal(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_isepdgtreal.pyx":62
+  /* "ltfatpy/comp/comp_isepdgtreal.pyx":66
  * 
  * import cython
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, dgt_phasetype, idgtreal_fb_d, idgtreal_long_d
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   /* "ltfatpy/comp/comp_isepdgtreal.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/ltfatpy/comp/comp_pgauss.c b/ltfatpy/comp/comp_pgauss.c
index a4f5d66c3013aeb528e80c5f5676e6083126f3d5..054699549121537a486a1c462786a3953d44b6f6 100644
--- a/ltfatpy/comp/comp_pgauss.c
+++ b/ltfatpy/comp/comp_pgauss.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -818,7 +818,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dst_kind {
 };
 struct __pyx_opt_args_7ltfatpy_4comp_11comp_pgauss_comp_pgauss;
 
-/* "ltfatpy/comp/comp_pgauss.pyx":86
+/* "ltfatpy/comp/comp_pgauss.pyx":90
  *     pgauss_cmplx_d(L, w, c_t, c_f, & out[0])
  * 
  * cpdef comp_pgauss(L, w=1.0, c_t=0, c_f=0):             # <<<<<<<<<<<<<<
@@ -1799,7 +1799,7 @@ static PyObject *__pyx_tuple__16;
 static PyObject *__pyx_tuple__17;
 static PyObject *__pyx_tuple__18;
 
-/* "ltfatpy/comp/comp_pgauss.pyx":72
+/* "ltfatpy/comp/comp_pgauss.pyx":76
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_pgauss_real(ltfatInt L, double w, double c_t,             # <<<<<<<<<<<<<<
@@ -1813,7 +1813,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_real(__pyx_t_7
   Py_ssize_t __pyx_t_1;
   __Pyx_RefNannySetupContext("comp_pgauss_real", 0);
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":75
+  /* "ltfatpy/comp/comp_pgauss.pyx":79
  *                       double[:] out):
  *     """ Internal function, do not use it """
  *     pgauss_d(L, w, c_t, & out[0])             # <<<<<<<<<<<<<<
@@ -1823,7 +1823,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_real(__pyx_t_7
   __pyx_t_1 = 0;
   pgauss_d(__pyx_v_L, __pyx_v_w, __pyx_v_c_t, (&(*((double *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_1 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":72
+  /* "ltfatpy/comp/comp_pgauss.pyx":76
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_pgauss_real(ltfatInt L, double w, double c_t,             # <<<<<<<<<<<<<<
@@ -1838,7 +1838,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_real(__pyx_t_7
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_pgauss.pyx":81
+/* "ltfatpy/comp/comp_pgauss.pyx":85
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_pgauss_cplx(ltfatInt L, double w, double c_t,             # <<<<<<<<<<<<<<
@@ -1852,7 +1852,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_cplx(__pyx_t_7
   Py_ssize_t __pyx_t_1;
   __Pyx_RefNannySetupContext("comp_pgauss_cplx", 0);
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":84
+  /* "ltfatpy/comp/comp_pgauss.pyx":88
  *                       double c_f, double complex[:] out):
  *     """ Internal function, do not use it """
  *     pgauss_cmplx_d(L, w, c_t, c_f, & out[0])             # <<<<<<<<<<<<<<
@@ -1862,7 +1862,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_cplx(__pyx_t_7
   __pyx_t_1 = 0;
   pgauss_cmplx_d(__pyx_v_L, __pyx_v_w, __pyx_v_c_t, __pyx_v_c_f, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_1 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":81
+  /* "ltfatpy/comp/comp_pgauss.pyx":85
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_pgauss_cplx(ltfatInt L, double w, double c_t,             # <<<<<<<<<<<<<<
@@ -1877,7 +1877,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_cplx(__pyx_t_7
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_pgauss.pyx":86
+/* "ltfatpy/comp/comp_pgauss.pyx":90
  *     pgauss_cmplx_d(L, w, c_t, c_f, & out[0])
  * 
  * cpdef comp_pgauss(L, w=1.0, c_t=0, c_f=0):             # <<<<<<<<<<<<<<
@@ -1918,46 +1918,46 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(PyObject *__py
     }
   }
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":92
+  /* "ltfatpy/comp/comp_pgauss.pyx":96
  *     :func:`~ltfatpy.fourier.pgauss.pgauss` instead.
  *     """
  *     if c_f == 0:             # <<<<<<<<<<<<<<
  *         out = np.ndarray((L), dtype=np.float64)
  *         comp_pgauss_real(L, w, c_t, out)
  */
-  __pyx_t_1 = __Pyx_PyInt_EqObjC(__pyx_v_c_f, __pyx_int_0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 92, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyInt_EqObjC(__pyx_v_c_f, __pyx_int_0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) __PYX_ERR(0, 92, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) __PYX_ERR(0, 96, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_2) {
 
-    /* "ltfatpy/comp/comp_pgauss.pyx":93
+    /* "ltfatpy/comp/comp_pgauss.pyx":97
  *     """
  *     if c_f == 0:
  *         out = np.ndarray((L), dtype=np.float64)             # <<<<<<<<<<<<<<
  *         comp_pgauss_real(L, w, c_t, out)
  *         return out
  */
-    __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 93, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 93, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 93, __pyx_L1_error)
+    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_INCREF(__pyx_v_L);
     __Pyx_GIVEREF(__pyx_v_L);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_L);
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 93, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 93, __pyx_L1_error)
+    __pyx_t_5 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_float64); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 93, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_float64); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_dtype, __pyx_t_6) < 0) __PYX_ERR(0, 93, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_dtype, __pyx_t_6) < 0) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 93, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_1, __pyx_t_4); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 97, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -1965,26 +1965,26 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(PyObject *__py
     __pyx_v_out = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_pgauss.pyx":94
+    /* "ltfatpy/comp/comp_pgauss.pyx":98
  *     if c_f == 0:
  *         out = np.ndarray((L), dtype=np.float64)
  *         comp_pgauss_real(L, w, c_t, out)             # <<<<<<<<<<<<<<
  *         return out
  *     out = np.ndarray((L), dtype=np.complex128)
  */
-    __pyx_t_7 = __Pyx_PyInt_As_size_t(__pyx_v_L); if (unlikely((__pyx_t_7 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 94, __pyx_L1_error)
-    __pyx_t_8 = __pyx_PyFloat_AsDouble(__pyx_v_w); if (unlikely((__pyx_t_8 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 94, __pyx_L1_error)
-    __pyx_t_9 = __pyx_PyFloat_AsDouble(__pyx_v_c_t); if (unlikely((__pyx_t_9 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 94, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_As_size_t(__pyx_v_L); if (unlikely((__pyx_t_7 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_8 = __pyx_PyFloat_AsDouble(__pyx_v_w); if (unlikely((__pyx_t_8 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_9 = __pyx_PyFloat_AsDouble(__pyx_v_c_t); if (unlikely((__pyx_t_9 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 98, __pyx_L1_error)
     __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_out);
-    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 94, __pyx_L1_error)
-    __pyx_t_6 = __pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_real(__pyx_t_7, __pyx_t_8, __pyx_t_9, __pyx_t_10); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 94, __pyx_L1_error)
+    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 98, __pyx_L1_error)
+    __pyx_t_6 = __pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_real(__pyx_t_7, __pyx_t_8, __pyx_t_9, __pyx_t_10); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 98, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __PYX_XDEC_MEMVIEW(&__pyx_t_10, 1);
     __pyx_t_10.memview = NULL;
     __pyx_t_10.data = NULL;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_pgauss.pyx":95
+    /* "ltfatpy/comp/comp_pgauss.pyx":99
  *         out = np.ndarray((L), dtype=np.float64)
  *         comp_pgauss_real(L, w, c_t, out)
  *         return out             # <<<<<<<<<<<<<<
@@ -1996,7 +1996,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(PyObject *__py
     __pyx_r = __pyx_v_out;
     goto __pyx_L0;
 
-    /* "ltfatpy/comp/comp_pgauss.pyx":92
+    /* "ltfatpy/comp/comp_pgauss.pyx":96
  *     :func:`~ltfatpy.fourier.pgauss.pgauss` instead.
  *     """
  *     if c_f == 0:             # <<<<<<<<<<<<<<
@@ -2005,33 +2005,33 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(PyObject *__py
  */
   }
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":96
+  /* "ltfatpy/comp/comp_pgauss.pyx":100
  *         comp_pgauss_real(L, w, c_t, out)
  *         return out
  *     out = np.ndarray((L), dtype=np.complex128)             # <<<<<<<<<<<<<<
  *     comp_pgauss_cplx(L, w, c_t, c_f, out)
  *     return out
  */
-  __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_INCREF(__pyx_v_L);
   __Pyx_GIVEREF(__pyx_v_L);
   PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_L);
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_complex128); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_complex128); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, __pyx_t_5) < 0) __PYX_ERR(0, 96, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, __pyx_t_5) < 0) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_6, __pyx_t_1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_6, __pyx_t_1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2039,26 +2039,26 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(PyObject *__py
   __pyx_v_out = __pyx_t_5;
   __pyx_t_5 = 0;
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":97
+  /* "ltfatpy/comp/comp_pgauss.pyx":101
  *         return out
  *     out = np.ndarray((L), dtype=np.complex128)
  *     comp_pgauss_cplx(L, w, c_t, c_f, out)             # <<<<<<<<<<<<<<
  *     return out
  */
-  __pyx_t_7 = __Pyx_PyInt_As_size_t(__pyx_v_L); if (unlikely((__pyx_t_7 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 97, __pyx_L1_error)
-  __pyx_t_9 = __pyx_PyFloat_AsDouble(__pyx_v_w); if (unlikely((__pyx_t_9 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 97, __pyx_L1_error)
-  __pyx_t_8 = __pyx_PyFloat_AsDouble(__pyx_v_c_t); if (unlikely((__pyx_t_8 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 97, __pyx_L1_error)
-  __pyx_t_11 = __pyx_PyFloat_AsDouble(__pyx_v_c_f); if (unlikely((__pyx_t_11 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 97, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyInt_As_size_t(__pyx_v_L); if (unlikely((__pyx_t_7 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_t_9 = __pyx_PyFloat_AsDouble(__pyx_v_w); if (unlikely((__pyx_t_9 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_t_8 = __pyx_PyFloat_AsDouble(__pyx_v_c_t); if (unlikely((__pyx_t_8 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_t_11 = __pyx_PyFloat_AsDouble(__pyx_v_c_f); if (unlikely((__pyx_t_11 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 101, __pyx_L1_error)
   __pyx_t_12 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_out);
-  if (unlikely(!__pyx_t_12.memview)) __PYX_ERR(0, 97, __pyx_L1_error)
-  __pyx_t_5 = __pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_cplx(__pyx_t_7, __pyx_t_9, __pyx_t_8, __pyx_t_11, __pyx_t_12); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 97, __pyx_L1_error)
+  if (unlikely(!__pyx_t_12.memview)) __PYX_ERR(0, 101, __pyx_L1_error)
+  __pyx_t_5 = __pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss_cplx(__pyx_t_7, __pyx_t_9, __pyx_t_8, __pyx_t_11, __pyx_t_12); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 101, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_5);
   __PYX_XDEC_MEMVIEW(&__pyx_t_12, 1);
   __pyx_t_12.memview = NULL;
   __pyx_t_12.data = NULL;
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":98
+  /* "ltfatpy/comp/comp_pgauss.pyx":102
  *     out = np.ndarray((L), dtype=np.complex128)
  *     comp_pgauss_cplx(L, w, c_t, c_f, out)
  *     return out             # <<<<<<<<<<<<<<
@@ -2068,7 +2068,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(PyObject *__py
   __pyx_r = __pyx_v_out;
   goto __pyx_L0;
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":86
+  /* "ltfatpy/comp/comp_pgauss.pyx":90
  *     pgauss_cmplx_d(L, w, c_t, c_f, & out[0])
  * 
  * cpdef comp_pgauss(L, w=1.0, c_t=0, c_f=0):             # <<<<<<<<<<<<<<
@@ -2144,7 +2144,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_11comp_pgauss_1comp_pgauss(PyObject *__
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_pgauss") < 0)) __PYX_ERR(0, 86, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_pgauss") < 0)) __PYX_ERR(0, 90, __pyx_L3_error)
       }
     } else {
       switch (PyTuple_GET_SIZE(__pyx_args)) {
@@ -2163,7 +2163,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_11comp_pgauss_1comp_pgauss(PyObject *__
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_pgauss", 0, 1, 4, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 86, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_pgauss", 0, 1, 4, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 90, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_pgauss.comp_pgauss", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2187,7 +2187,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(CYTHON_UNUSED
   __pyx_t_2.w = __pyx_v_w;
   __pyx_t_2.c_t = __pyx_v_c_t;
   __pyx_t_2.c_f = __pyx_v_c_f;
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(__pyx_v_L, 0, &__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 86, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_11comp_pgauss_comp_pgauss(__pyx_v_L, 0, &__pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 90, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -14985,22 +14985,22 @@ PyMODINIT_FUNC PyInit_comp_pgauss(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_pgauss.pyx":64
+  /* "ltfatpy/comp/comp_pgauss.pyx":68
  * from cython.view cimport array as cvarray
  * from libc.stdlib cimport malloc, free
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, pgauss_d, pgauss_cmplx_d
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 64, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 68, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 64, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 68, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   /* "ltfatpy/comp/comp_pgauss.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/ltfatpy/comp/comp_sepdgt.c b/ltfatpy/comp/comp_sepdgt.c
index 8714cb8e9a768be3133d26732a5e91374c06f3d0..efe847fe71791566f82e3624dc8aaa209d200eb0 100644
--- a/ltfatpy/comp/comp_sepdgt.c
+++ b/ltfatpy/comp/comp_sepdgt.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -1823,7 +1823,7 @@ static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 static PyObject *__pyx_tuple__21;
 
-/* "ltfatpy/comp/comp_sepdgt.pyx":73
+/* "ltfatpy/comp/comp_sepdgt.pyx":77
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgt_long_cd(const double complex[:] f, const double complex[:] g,             # <<<<<<<<<<<<<<
@@ -1839,7 +1839,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_cd(__Pyx_mem
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_dgt_long_cd", 0);
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":78
+  /* "ltfatpy/comp/comp_sepdgt.pyx":82
  *                       double complex[:] out):
  *     """ Internal function, do not use it """
  *     dgt_long_cd(&f[0], &g[0], L, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1851,7 +1851,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_cd(__Pyx_mem
   __pyx_t_3 = 0;
   dgt_long_cd((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":73
+  /* "ltfatpy/comp/comp_sepdgt.pyx":77
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgt_long_cd(const double complex[:] f, const double complex[:] g,             # <<<<<<<<<<<<<<
@@ -1866,7 +1866,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_cd(__Pyx_mem
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_sepdgt.pyx":84
+/* "ltfatpy/comp/comp_sepdgt.pyx":88
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgt_long_d(const double[:] f, const double[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1882,7 +1882,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_d(__Pyx_memv
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_dgt_long_d", 0);
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":88
+  /* "ltfatpy/comp/comp_sepdgt.pyx":92
  *                      const dgt_phasetype ptype, double complex[:] out):
  *     """ Internal function, do not use it """
  *     dgt_long_d(&f[0], &g[0], L, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1894,7 +1894,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_d(__Pyx_memv
   __pyx_t_3 = 0;
   dgt_long_d((&(*((double *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), (&(*((double *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":84
+  /* "ltfatpy/comp/comp_sepdgt.pyx":88
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgt_long_d(const double[:] f, const double[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1909,7 +1909,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_d(__Pyx_memv
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_sepdgt.pyx":95
+/* "ltfatpy/comp/comp_sepdgt.pyx":99
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgt_fb_d(const double[:] f, const double[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1925,7 +1925,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_d(__Pyx_memvie
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_dgt_fb_d", 0);
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":100
+  /* "ltfatpy/comp/comp_sepdgt.pyx":104
  *                    double complex[:] out):
  *     """ Internal function, do not use it """
  *     dgt_fb_d(&f[0], &g[0], L, gl, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1937,7 +1937,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_d(__Pyx_memvie
   __pyx_t_3 = 0;
   dgt_fb_d((&(*((double *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), (&(*((double *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":95
+  /* "ltfatpy/comp/comp_sepdgt.pyx":99
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgt_fb_d(const double[:] f, const double[:] g, const ltfatInt L,             # <<<<<<<<<<<<<<
@@ -1952,7 +1952,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_d(__Pyx_memvie
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_sepdgt.pyx":107
+/* "ltfatpy/comp/comp_sepdgt.pyx":111
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgt_fb_cd(const double complex[:] f, const double complex[:] g,             # <<<<<<<<<<<<<<
@@ -1968,7 +1968,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_cd(__Pyx_memvi
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_dgt_fb_cd", 0);
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":112
+  /* "ltfatpy/comp/comp_sepdgt.pyx":116
  *                     const dgt_phasetype ptype, double complex[:] out):
  *     """ Internal function, do not use it """
  *     dgt_fb_cd(&f[0], &g[0], L, gl, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1980,7 +1980,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_cd(__Pyx_memvi
   __pyx_t_3 = 0;
   dgt_fb_cd((&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":107
+  /* "ltfatpy/comp/comp_sepdgt.pyx":111
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgt_fb_cd(const double complex[:] f, const double complex[:] g,             # <<<<<<<<<<<<<<
@@ -1995,7 +1995,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_cd(__Pyx_memvi
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_sepdgt.pyx":119
+/* "ltfatpy/comp/comp_sepdgt.pyx":123
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_sepdgt(f, g, a, M, pt):             # <<<<<<<<<<<<<<
@@ -2033,66 +2033,66 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   __Pyx_INCREF(__pyx_v_f);
   __Pyx_INCREF(__pyx_v_g);
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":126
+  /* "ltfatpy/comp/comp_sepdgt.pyx":130
  *     """
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L4_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 126, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 130, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_1 = __pyx_t_5;
   __pyx_L4_bool_binop_done:;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":127
+    /* "ltfatpy/comp/comp_sepdgt.pyx":131
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")             # <<<<<<<<<<<<<<
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  *         raise TypeError("g data should be numpy.float64 or complex128")
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(0, 127, __pyx_L1_error)
+    __PYX_ERR(0, 131, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":126
+    /* "ltfatpy/comp/comp_sepdgt.pyx":130
  *     """
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
@@ -2101,66 +2101,66 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
   }
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":128
+  /* "ltfatpy/comp/comp_sepdgt.pyx":132
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
  *         raise TypeError("g data should be numpy.float64 or complex128")
  *     if (f.dtype.type != g.dtype.type):
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L7_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 128, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 132, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_1 = __pyx_t_5;
   __pyx_L7_bool_binop_done:;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":129
+    /* "ltfatpy/comp/comp_sepdgt.pyx":133
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  *         raise TypeError("g data should be numpy.float64 or complex128")             # <<<<<<<<<<<<<<
  *     if (f.dtype.type != g.dtype.type):
  *         if f.dtype.type == np.float64:
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 129, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 133, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(0, 129, __pyx_L1_error)
+    __PYX_ERR(0, 133, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":128
+    /* "ltfatpy/comp/comp_sepdgt.pyx":132
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):             # <<<<<<<<<<<<<<
@@ -2169,66 +2169,66 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
   }
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":130
+  /* "ltfatpy/comp/comp_sepdgt.pyx":134
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  *         raise TypeError("g data should be numpy.float64 or complex128")
  *     if (f.dtype.type != g.dtype.type):             # <<<<<<<<<<<<<<
  *         if f.dtype.type == np.float64:
  *             f = f.astype(np.complex128)
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_4, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":131
+    /* "ltfatpy/comp/comp_sepdgt.pyx":135
  *         raise TypeError("g data should be numpy.float64 or complex128")
  *     if (f.dtype.type != g.dtype.type):
  *         if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
  *             f = f.astype(np.complex128)
  *         if g.dtype.type == np.float64:
  */
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 135, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 131, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 135, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 135, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 131, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 135, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
+    __pyx_t_2 = PyObject_RichCompare(__pyx_t_4, __pyx_t_3, Py_EQ); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 135, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 131, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 135, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_1) {
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":132
+      /* "ltfatpy/comp/comp_sepdgt.pyx":136
  *     if (f.dtype.type != g.dtype.type):
  *         if f.dtype.type == np.float64:
  *             f = f.astype(np.complex128)             # <<<<<<<<<<<<<<
  *         if g.dtype.type == np.float64:
  *             g = g.astype(np.complex128)
  */
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_astype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_astype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_complex128); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 132, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_complex128); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 136, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_t_4 = NULL;
@@ -2242,14 +2242,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
         }
       }
       if (!__pyx_t_4) {
-        __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
+        __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         __Pyx_GOTREF(__pyx_t_2);
       } else {
         #if CYTHON_FAST_PYCALL
         if (PyFunction_Check(__pyx_t_3)) {
           PyObject *__pyx_temp[2] = {__pyx_t_4, __pyx_t_6};
-          __pyx_t_2 = __Pyx_PyFunction_FastCall(__pyx_t_3, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
+          __pyx_t_2 = __Pyx_PyFunction_FastCall(__pyx_t_3, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
           __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2258,20 +2258,20 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
         #if CYTHON_FAST_PYCCALL
         if (__Pyx_PyFastCFunction_Check(__pyx_t_3)) {
           PyObject *__pyx_temp[2] = {__pyx_t_4, __pyx_t_6};
-          __pyx_t_2 = __Pyx_PyCFunction_FastCall(__pyx_t_3, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
+          __pyx_t_2 = __Pyx_PyCFunction_FastCall(__pyx_t_3, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
           __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         } else
         #endif
         {
-          __pyx_t_7 = PyTuple_New(1+1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 132, __pyx_L1_error)
+          __pyx_t_7 = PyTuple_New(1+1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_7);
           __Pyx_GIVEREF(__pyx_t_4); PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_4); __pyx_t_4 = NULL;
           __Pyx_GIVEREF(__pyx_t_6);
           PyTuple_SET_ITEM(__pyx_t_7, 0+1, __pyx_t_6);
           __pyx_t_6 = 0;
-          __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_7, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
+          __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_7, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         }
@@ -2280,7 +2280,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       __Pyx_DECREF_SET(__pyx_v_f, __pyx_t_2);
       __pyx_t_2 = 0;
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":131
+      /* "ltfatpy/comp/comp_sepdgt.pyx":135
  *         raise TypeError("g data should be numpy.float64 or complex128")
  *     if (f.dtype.type != g.dtype.type):
  *         if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
@@ -2289,42 +2289,42 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
     }
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":133
+    /* "ltfatpy/comp/comp_sepdgt.pyx":137
  *         if f.dtype.type == np.float64:
  *             f = f.astype(np.complex128)
  *         if g.dtype.type == np.float64:             # <<<<<<<<<<<<<<
  *             g = g.astype(np.complex128)
  *     if pt != FREQINV and pt != TIMEINV:
  */
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 133, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 137, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 133, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 137, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 133, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 137, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 133, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_float64); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 137, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_7, Py_EQ); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 133, __pyx_L1_error)
+    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_7, Py_EQ); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 137, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 133, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 137, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_1) {
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":134
+      /* "ltfatpy/comp/comp_sepdgt.pyx":138
  *             f = f.astype(np.complex128)
  *         if g.dtype.type == np.float64:
  *             g = g.astype(np.complex128)             # <<<<<<<<<<<<<<
  *     if pt != FREQINV and pt != TIMEINV:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  */
-      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_astype); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 134, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_astype); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 138, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 134, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 138, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_complex128); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 134, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_complex128); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 138, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __pyx_t_3 = NULL;
@@ -2338,14 +2338,14 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
         }
       }
       if (!__pyx_t_3) {
-        __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_t_7, __pyx_t_6); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
+        __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_t_7, __pyx_t_6); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 138, __pyx_L1_error)
         __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         __Pyx_GOTREF(__pyx_t_2);
       } else {
         #if CYTHON_FAST_PYCALL
         if (PyFunction_Check(__pyx_t_7)) {
           PyObject *__pyx_temp[2] = {__pyx_t_3, __pyx_t_6};
-          __pyx_t_2 = __Pyx_PyFunction_FastCall(__pyx_t_7, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
+          __pyx_t_2 = __Pyx_PyFunction_FastCall(__pyx_t_7, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 138, __pyx_L1_error)
           __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2354,20 +2354,20 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
         #if CYTHON_FAST_PYCCALL
         if (__Pyx_PyFastCFunction_Check(__pyx_t_7)) {
           PyObject *__pyx_temp[2] = {__pyx_t_3, __pyx_t_6};
-          __pyx_t_2 = __Pyx_PyCFunction_FastCall(__pyx_t_7, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
+          __pyx_t_2 = __Pyx_PyCFunction_FastCall(__pyx_t_7, __pyx_temp+1-1, 1+1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 138, __pyx_L1_error)
           __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         } else
         #endif
         {
-          __pyx_t_4 = PyTuple_New(1+1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 134, __pyx_L1_error)
+          __pyx_t_4 = PyTuple_New(1+1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 138, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_4);
           __Pyx_GIVEREF(__pyx_t_3); PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_3); __pyx_t_3 = NULL;
           __Pyx_GIVEREF(__pyx_t_6);
           PyTuple_SET_ITEM(__pyx_t_4, 0+1, __pyx_t_6);
           __pyx_t_6 = 0;
-          __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_4, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
+          __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_4, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 138, __pyx_L1_error)
           __Pyx_GOTREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         }
@@ -2376,7 +2376,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       __Pyx_DECREF_SET(__pyx_v_g, __pyx_t_2);
       __pyx_t_2 = 0;
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":133
+      /* "ltfatpy/comp/comp_sepdgt.pyx":137
  *         if f.dtype.type == np.float64:
  *             f = f.astype(np.complex128)
  *         if g.dtype.type == np.float64:             # <<<<<<<<<<<<<<
@@ -2385,7 +2385,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
     }
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":130
+    /* "ltfatpy/comp/comp_sepdgt.pyx":134
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  *         raise TypeError("g data should be numpy.float64 or complex128")
  *     if (f.dtype.type != g.dtype.type):             # <<<<<<<<<<<<<<
@@ -2394,48 +2394,48 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
   }
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":135
+  /* "ltfatpy/comp/comp_sepdgt.pyx":139
  *         if g.dtype.type == np.float64:
  *             g = g.astype(np.complex128)
  *     if pt != FREQINV and pt != TIMEINV:             # <<<<<<<<<<<<<<
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  * 
  */
-  __pyx_t_2 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_e_7ltfatpy_4comp_5ltfat_FREQINV); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 135, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_e_7ltfatpy_4comp_5ltfat_FREQINV); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_7 = PyObject_RichCompare(__pyx_v_pt, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 135, __pyx_L1_error)
+  __pyx_t_7 = PyObject_RichCompare(__pyx_v_pt, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 135, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_1 = __pyx_t_5;
     goto __pyx_L13_bool_binop_done;
   }
-  __pyx_t_7 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 135, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_v_pt, __pyx_t_7, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 135, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_v_pt, __pyx_t_7, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 135, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 139, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_1 = __pyx_t_5;
   __pyx_L13_bool_binop_done:;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":136
+    /* "ltfatpy/comp/comp_sepdgt.pyx":140
  *             g = g.astype(np.complex128)
  *     if pt != FREQINV and pt != TIMEINV:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")             # <<<<<<<<<<<<<<
  * 
  *     if f.ndim > 1:
  */
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_Raise(__pyx_t_2, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __PYX_ERR(0, 136, __pyx_L1_error)
+    __PYX_ERR(0, 140, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":135
+    /* "ltfatpy/comp/comp_sepdgt.pyx":139
  *         if g.dtype.type == np.float64:
  *             g = g.astype(np.complex128)
  *     if pt != FREQINV and pt != TIMEINV:             # <<<<<<<<<<<<<<
@@ -2444,61 +2444,61 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
   }
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":138
+  /* "ltfatpy/comp/comp_sepdgt.pyx":142
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  * 
  *     if f.ndim > 1:             # <<<<<<<<<<<<<<
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 138, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 142, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 138, __pyx_L1_error)
+  __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 142, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 138, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 142, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":139
+    /* "ltfatpy/comp/comp_sepdgt.pyx":143
  * 
  *     if f.ndim > 1:
  *         if f.ndim > 2:             # <<<<<<<<<<<<<<
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]
  */
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 139, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 143, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_2 = PyObject_RichCompare(__pyx_t_7, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 139, __pyx_L1_error)
+    __pyx_t_2 = PyObject_RichCompare(__pyx_t_7, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 143, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 139, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 143, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_1) {
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":140
+      /* "ltfatpy/comp/comp_sepdgt.pyx":144
  *     if f.ndim > 1:
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))             # <<<<<<<<<<<<<<
  *         L = f.shape[0]
  *         W = f.shape[1]
  */
-      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(__pyx_v_f);
       __Pyx_GIVEREF(__pyx_v_f);
       PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_f);
-      __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_3 = __Pyx_PyInt_SubtractObjC(__pyx_t_6, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyInt_SubtractObjC(__pyx_t_6, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_int_2);
       __Pyx_GIVEREF(__pyx_int_2);
@@ -2506,12 +2506,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       __Pyx_GIVEREF(__pyx_t_3);
       PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_3);
       __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_6, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_6, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_axis, __pyx_t_3) < 0) __PYX_ERR(0, 140, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_axis, __pyx_t_3) < 0) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2519,7 +2519,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       __Pyx_DECREF_SET(__pyx_v_f, __pyx_t_3);
       __pyx_t_3 = 0;
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":139
+      /* "ltfatpy/comp/comp_sepdgt.pyx":143
  * 
  *     if f.ndim > 1:
  *         if f.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2528,58 +2528,58 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
     }
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":141
+    /* "ltfatpy/comp/comp_sepdgt.pyx":145
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]             # <<<<<<<<<<<<<<
  *         W = f.shape[1]
  *         f_combined = f.reshape(L * W, order='F')
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 141, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 141, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 141, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 145, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_v_L = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":142
+    /* "ltfatpy/comp/comp_sepdgt.pyx":146
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]
  *         W = f.shape[1]             # <<<<<<<<<<<<<<
  *         f_combined = f.reshape(L * W, order='F')
  *     else:
  */
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 146, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_4, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 142, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_4, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 146, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_3); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 142, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_3); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 146, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_v_W = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":143
+    /* "ltfatpy/comp/comp_sepdgt.pyx":147
  *         L = f.shape[0]
  *         W = f.shape[1]
  *         f_combined = f.reshape(L * W, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         L = f.shape[0]
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 143, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 147, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 143, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyInt_FromSize_t((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 147, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 143, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 147, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 143, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 147, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 143, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 143, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 147, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_4); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 147, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2587,7 +2587,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     __pyx_v_f_combined = __pyx_t_7;
     __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":138
+    /* "ltfatpy/comp/comp_sepdgt.pyx":142
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  * 
  *     if f.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2597,7 +2597,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     goto __pyx_L15;
   }
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":145
+  /* "ltfatpy/comp/comp_sepdgt.pyx":149
  *         f_combined = f.reshape(L * W, order='F')
  *     else:
  *         L = f.shape[0]             # <<<<<<<<<<<<<<
@@ -2605,16 +2605,16 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  *         f_combined = f
  */
   /*else*/ {
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 149, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_7, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 145, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_7, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 149, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 145, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_4); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 149, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_v_L = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":146
+    /* "ltfatpy/comp/comp_sepdgt.pyx":150
  *     else:
  *         L = f.shape[0]
  *         W = 1             # <<<<<<<<<<<<<<
@@ -2623,7 +2623,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
     __pyx_v_W = 1;
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":147
+    /* "ltfatpy/comp/comp_sepdgt.pyx":151
  *         L = f.shape[0]
  *         W = 1
  *         f_combined = f             # <<<<<<<<<<<<<<
@@ -2635,77 +2635,77 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   }
   __pyx_L15:;
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":149
+  /* "ltfatpy/comp/comp_sepdgt.pyx":153
  *         f_combined = f
  * 
  *     cdef ltfatInt gl = g.shape[0]             # <<<<<<<<<<<<<<
  * 
  *     if g.ndim > 1:
  */
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 149, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 153, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_4, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 149, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_4, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 153, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_7); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 149, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_7); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 153, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   __pyx_v_gl = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":151
+  /* "ltfatpy/comp/comp_sepdgt.pyx":155
  *     cdef ltfatInt gl = g.shape[0]
  * 
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  */
-  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 151, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 155, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_4 = PyObject_RichCompare(__pyx_t_7, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 151, __pyx_L1_error)
+  __pyx_t_4 = PyObject_RichCompare(__pyx_t_7, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_4); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 155, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 151, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 155, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":152
+    /* "ltfatpy/comp/comp_sepdgt.pyx":156
  * 
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if f.ndim == 2:
  */
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 152, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 156, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_7 = PyObject_RichCompare(__pyx_t_4, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 152, __pyx_L1_error)
+    __pyx_t_7 = PyObject_RichCompare(__pyx_t_4, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_7); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 156, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 152, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 156, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     if (__pyx_t_1) {
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":153
+      /* "ltfatpy/comp/comp_sepdgt.pyx":157
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))             # <<<<<<<<<<<<<<
  *         if f.ndim == 2:
  *             gl = gl * g.shape[1]
  */
-      __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_INCREF(__pyx_v_g);
       __Pyx_GIVEREF(__pyx_v_g);
       PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_v_g);
-      __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_6 = __Pyx_PyInt_SubtractObjC(__pyx_t_3, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyInt_SubtractObjC(__pyx_t_3, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_INCREF(__pyx_int_2);
       __Pyx_GIVEREF(__pyx_int_2);
@@ -2713,12 +2713,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       __Pyx_GIVEREF(__pyx_t_6);
       PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_6);
       __pyx_t_6 = 0;
-      __pyx_t_6 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_3, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_3, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_axis, __pyx_t_6) < 0) __PYX_ERR(0, 153, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_axis, __pyx_t_6) < 0) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_7, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 153, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_7, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 157, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
@@ -2726,7 +2726,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       __Pyx_DECREF_SET(__pyx_v_g, __pyx_t_6);
       __pyx_t_6 = 0;
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":152
+      /* "ltfatpy/comp/comp_sepdgt.pyx":156
  * 
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2735,45 +2735,45 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
     }
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":154
+    /* "ltfatpy/comp/comp_sepdgt.pyx":158
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if f.ndim == 2:             # <<<<<<<<<<<<<<
  *             gl = gl * g.shape[1]
  *         g_combined = g.reshape(gl, order='F')
  */
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 154, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 158, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_6, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 154, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_EqObjC(__pyx_t_6, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 158, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 154, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 158, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_1) {
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":155
+      /* "ltfatpy/comp/comp_sepdgt.pyx":159
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if f.ndim == 2:
  *             gl = gl * g.shape[1]             # <<<<<<<<<<<<<<
  *         g_combined = g.reshape(gl, order='F')
  *     else:
  */
-      __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 155, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 159, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 155, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 159, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_6, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 155, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_6, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 159, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyNumber_Multiply(__pyx_t_2, __pyx_t_7); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 155, __pyx_L1_error)
+      __pyx_t_6 = PyNumber_Multiply(__pyx_t_2, __pyx_t_7); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 159, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 155, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 159, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __pyx_v_gl = __pyx_t_8;
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":154
+      /* "ltfatpy/comp/comp_sepdgt.pyx":158
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if f.ndim == 2:             # <<<<<<<<<<<<<<
@@ -2782,26 +2782,26 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
     }
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":156
+    /* "ltfatpy/comp/comp_sepdgt.pyx":160
  *         if f.ndim == 2:
  *             gl = gl * g.shape[1]
  *         g_combined = g.reshape(gl, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         g_combined = g
  */
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 156, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 160, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 156, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 160, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 156, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 160, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_7);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_7);
     __pyx_t_7 = 0;
-    __pyx_t_7 = PyDict_New(); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 156, __pyx_L1_error)
+    __pyx_t_7 = PyDict_New(); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 160, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    if (PyDict_SetItem(__pyx_t_7, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 156, __pyx_L1_error)
-    __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_2, __pyx_t_7); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 156, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_7, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 160, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_2, __pyx_t_7); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 160, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2809,7 +2809,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     __pyx_v_g_combined = __pyx_t_4;
     __pyx_t_4 = 0;
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":151
+    /* "ltfatpy/comp/comp_sepdgt.pyx":155
  *     cdef ltfatInt gl = g.shape[0]
  * 
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2819,7 +2819,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     goto __pyx_L17;
   }
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":158
+  /* "ltfatpy/comp/comp_sepdgt.pyx":162
  *         g_combined = g.reshape(gl, order='F')
  *     else:
  *         g_combined = g             # <<<<<<<<<<<<<<
@@ -2832,63 +2832,63 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   }
   __pyx_L17:;
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":160
+  /* "ltfatpy/comp/comp_sepdgt.pyx":164
  *         g_combined = g
  * 
  *     cdef ltfatInt N = L//a             # <<<<<<<<<<<<<<
  *     res = np.ndarray((M * W * (L // a)), dtype=np.complex128)
  *     if gl < L:
  */
-  __pyx_t_4 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 160, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 164, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
-  __pyx_t_7 = PyNumber_FloorDivide(__pyx_t_4, __pyx_v_a); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 160, __pyx_L1_error)
+  __pyx_t_7 = PyNumber_FloorDivide(__pyx_t_4, __pyx_v_a); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 164, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_7); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 160, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_t_7); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 164, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
   __pyx_v_N = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":161
+  /* "ltfatpy/comp/comp_sepdgt.pyx":165
  * 
  *     cdef ltfatInt N = L//a
  *     res = np.ndarray((M * W * (L // a)), dtype=np.complex128)             # <<<<<<<<<<<<<<
  *     if gl < L:
  *         if f.dtype.type == np.float64:
  */
-  __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_2 = PyNumber_Multiply(__pyx_v_M, __pyx_t_7); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_2 = PyNumber_Multiply(__pyx_v_M, __pyx_t_7); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyInt_FromSize_t(__pyx_v_L); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_6 = PyNumber_FloorDivide(__pyx_t_7, __pyx_v_a); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_6 = PyNumber_FloorDivide(__pyx_t_7, __pyx_v_a); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __pyx_t_7 = PyNumber_Multiply(__pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_7 = PyNumber_Multiply(__pyx_t_2, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_GIVEREF(__pyx_t_7);
   PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_7);
   __pyx_t_7 = 0;
-  __pyx_t_7 = PyDict_New(); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_7 = PyDict_New(); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_complex128); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (PyDict_SetItem(__pyx_t_7, __pyx_n_s_dtype, __pyx_t_3) < 0) __PYX_ERR(0, 161, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_7, __pyx_n_s_dtype, __pyx_t_3) < 0) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_6, __pyx_t_7); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 161, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_6, __pyx_t_7); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 165, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2896,7 +2896,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   __pyx_v_res = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":162
+  /* "ltfatpy/comp/comp_sepdgt.pyx":166
  *     cdef ltfatInt N = L//a
  *     res = np.ndarray((M * W * (L // a)), dtype=np.complex128)
  *     if gl < L:             # <<<<<<<<<<<<<<
@@ -2906,31 +2906,31 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   __pyx_t_1 = ((__pyx_v_gl < __pyx_v_L) != 0);
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":163
+    /* "ltfatpy/comp/comp_sepdgt.pyx":167
  *     res = np.ndarray((M * W * (L // a)), dtype=np.complex128)
  *     if gl < L:
  *         if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
  *             comp_dgt_fb_d(f_combined, g_combined, L, gl, W, a, M, pt, res)
  *         else:
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 163, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 167, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_type); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 163, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_type); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 167, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 163, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 167, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_float64); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 163, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_float64); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 167, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_RichCompare(__pyx_t_7, __pyx_t_6, Py_EQ); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 163, __pyx_L1_error)
+    __pyx_t_3 = PyObject_RichCompare(__pyx_t_7, __pyx_t_6, Py_EQ); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 167, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 163, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 167, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     if (__pyx_t_1) {
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":164
+      /* "ltfatpy/comp/comp_sepdgt.pyx":168
  *     if gl < L:
  *         if f.dtype.type == np.float64:
  *             comp_dgt_fb_d(f_combined, g_combined, L, gl, W, a, M, pt, res)             # <<<<<<<<<<<<<<
@@ -2938,15 +2938,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  *             comp_dgt_fb_cd(f_combined, g_combined, L, gl, W, a, M, pt, res)
  */
       __pyx_t_9 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_f_combined);
-      if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 164, __pyx_L1_error)
+      if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 168, __pyx_L1_error)
       __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_g_combined);
-      if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 164, __pyx_L1_error)
-      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 164, __pyx_L1_error)
-      __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 164, __pyx_L1_error)
-      __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 164, __pyx_L1_error)
+      if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 168, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 168, __pyx_L1_error)
+      __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 168, __pyx_L1_error)
+      __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 168, __pyx_L1_error)
       __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-      if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 164, __pyx_L1_error)
-      __pyx_t_3 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_d(__pyx_t_9, __pyx_t_10, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_8, __pyx_t_11, __pyx_t_12, __pyx_t_13); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 164, __pyx_L1_error)
+      if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 168, __pyx_L1_error)
+      __pyx_t_3 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_d(__pyx_t_9, __pyx_t_10, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_8, __pyx_t_11, __pyx_t_12, __pyx_t_13); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 168, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __PYX_XDEC_MEMVIEW(&__pyx_t_9, 1);
       __pyx_t_9.memview = NULL;
@@ -2959,7 +2959,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       __pyx_t_13.data = NULL;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":163
+      /* "ltfatpy/comp/comp_sepdgt.pyx":167
  *     res = np.ndarray((M * W * (L // a)), dtype=np.complex128)
  *     if gl < L:
  *         if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
@@ -2969,7 +2969,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       goto __pyx_L21;
     }
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":166
+    /* "ltfatpy/comp/comp_sepdgt.pyx":170
  *             comp_dgt_fb_d(f_combined, g_combined, L, gl, W, a, M, pt, res)
  *         else:
  *             comp_dgt_fb_cd(f_combined, g_combined, L, gl, W, a, M, pt, res)             # <<<<<<<<<<<<<<
@@ -2978,15 +2978,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
     /*else*/ {
       __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_f_combined);
-      if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 166, __pyx_L1_error)
+      if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 170, __pyx_L1_error)
       __pyx_t_14 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_g_combined);
-      if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 166, __pyx_L1_error)
-      __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 166, __pyx_L1_error)
-      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 166, __pyx_L1_error)
-      __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 166, __pyx_L1_error)
+      if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 170, __pyx_L1_error)
+      __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 170, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 170, __pyx_L1_error)
+      __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 170, __pyx_L1_error)
       __pyx_t_15 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-      if (unlikely(!__pyx_t_15.memview)) __PYX_ERR(0, 166, __pyx_L1_error)
-      __pyx_t_3 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_cd(__pyx_t_13, __pyx_t_14, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_11, __pyx_t_8, __pyx_t_12, __pyx_t_15); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 166, __pyx_L1_error)
+      if (unlikely(!__pyx_t_15.memview)) __PYX_ERR(0, 170, __pyx_L1_error)
+      __pyx_t_3 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_fb_cd(__pyx_t_13, __pyx_t_14, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_11, __pyx_t_8, __pyx_t_12, __pyx_t_15); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 170, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __PYX_XDEC_MEMVIEW(&__pyx_t_13, 1);
       __pyx_t_13.memview = NULL;
@@ -3001,7 +3001,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     }
     __pyx_L21:;
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":162
+    /* "ltfatpy/comp/comp_sepdgt.pyx":166
  *     cdef ltfatInt N = L//a
  *     res = np.ndarray((M * W * (L // a)), dtype=np.complex128)
  *     if gl < L:             # <<<<<<<<<<<<<<
@@ -3011,7 +3011,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     goto __pyx_L20;
   }
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":168
+  /* "ltfatpy/comp/comp_sepdgt.pyx":172
  *             comp_dgt_fb_cd(f_combined, g_combined, L, gl, W, a, M, pt, res)
  *     else:
  *         if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
@@ -3019,24 +3019,24 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  *         else:
  */
   /*else*/ {
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 168, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 172, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_type); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 168, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_type); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 172, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 168, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 172, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_float64); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 168, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_float64); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 172, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_RichCompare(__pyx_t_6, __pyx_t_7, Py_EQ); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 168, __pyx_L1_error)
+    __pyx_t_3 = PyObject_RichCompare(__pyx_t_6, __pyx_t_7, Py_EQ); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 172, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 168, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_1 < 0)) __PYX_ERR(0, 172, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     if (__pyx_t_1) {
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":169
+      /* "ltfatpy/comp/comp_sepdgt.pyx":173
  *     else:
  *         if f.dtype.type == np.float64:
  *             comp_dgt_long_d(f_combined, g_combined, L, W, a, M, pt, res)             # <<<<<<<<<<<<<<
@@ -3044,15 +3044,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  *             comp_dgt_long_cd(f_combined, g_combined, L, W, a, M, pt, res)
  */
       __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_f_combined);
-      if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 169, __pyx_L1_error)
+      if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 173, __pyx_L1_error)
       __pyx_t_9 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_g_combined);
-      if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 169, __pyx_L1_error)
-      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 169, __pyx_L1_error)
-      __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 169, __pyx_L1_error)
-      __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 169, __pyx_L1_error)
+      if (unlikely(!__pyx_t_9.memview)) __PYX_ERR(0, 173, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 173, __pyx_L1_error)
+      __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 173, __pyx_L1_error)
+      __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 173, __pyx_L1_error)
       __pyx_t_15 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-      if (unlikely(!__pyx_t_15.memview)) __PYX_ERR(0, 169, __pyx_L1_error)
-      __pyx_t_3 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_d(__pyx_t_10, __pyx_t_9, __pyx_v_L, __pyx_v_W, __pyx_t_8, __pyx_t_11, __pyx_t_12, __pyx_t_15); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 169, __pyx_L1_error)
+      if (unlikely(!__pyx_t_15.memview)) __PYX_ERR(0, 173, __pyx_L1_error)
+      __pyx_t_3 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_d(__pyx_t_10, __pyx_t_9, __pyx_v_L, __pyx_v_W, __pyx_t_8, __pyx_t_11, __pyx_t_12, __pyx_t_15); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 173, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __PYX_XDEC_MEMVIEW(&__pyx_t_10, 1);
       __pyx_t_10.memview = NULL;
@@ -3065,7 +3065,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       __pyx_t_15.data = NULL;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-      /* "ltfatpy/comp/comp_sepdgt.pyx":168
+      /* "ltfatpy/comp/comp_sepdgt.pyx":172
  *             comp_dgt_fb_cd(f_combined, g_combined, L, gl, W, a, M, pt, res)
  *     else:
  *         if f.dtype.type == np.float64:             # <<<<<<<<<<<<<<
@@ -3075,7 +3075,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
       goto __pyx_L22;
     }
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":171
+    /* "ltfatpy/comp/comp_sepdgt.pyx":175
  *             comp_dgt_long_d(f_combined, g_combined, L, W, a, M, pt, res)
  *         else:
  *             comp_dgt_long_cd(f_combined, g_combined, L, W, a, M, pt, res)             # <<<<<<<<<<<<<<
@@ -3084,15 +3084,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
  */
     /*else*/ {
       __pyx_t_15 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_f_combined);
-      if (unlikely(!__pyx_t_15.memview)) __PYX_ERR(0, 171, __pyx_L1_error)
+      if (unlikely(!__pyx_t_15.memview)) __PYX_ERR(0, 175, __pyx_L1_error)
       __pyx_t_14 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_g_combined);
-      if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 171, __pyx_L1_error)
-      __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 171, __pyx_L1_error)
-      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 171, __pyx_L1_error)
-      __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 171, __pyx_L1_error)
+      if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 175, __pyx_L1_error)
+      __pyx_t_11 = __Pyx_PyInt_As_size_t(__pyx_v_a); if (unlikely((__pyx_t_11 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 175, __pyx_L1_error)
+      __pyx_t_8 = __Pyx_PyInt_As_size_t(__pyx_v_M); if (unlikely((__pyx_t_8 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 175, __pyx_L1_error)
+      __pyx_t_12 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 175, __pyx_L1_error)
       __pyx_t_13 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-      if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 171, __pyx_L1_error)
-      __pyx_t_3 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_cd(__pyx_t_15, __pyx_t_14, __pyx_v_L, __pyx_v_W, __pyx_t_11, __pyx_t_8, __pyx_t_12, __pyx_t_13); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 171, __pyx_L1_error)
+      if (unlikely(!__pyx_t_13.memview)) __PYX_ERR(0, 175, __pyx_L1_error)
+      __pyx_t_3 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_dgt_long_cd(__pyx_t_15, __pyx_t_14, __pyx_v_L, __pyx_v_W, __pyx_t_11, __pyx_t_8, __pyx_t_12, __pyx_t_13); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 175, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __PYX_XDEC_MEMVIEW(&__pyx_t_15, 1);
       __pyx_t_15.memview = NULL;
@@ -3109,7 +3109,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   }
   __pyx_L20:;
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":172
+  /* "ltfatpy/comp/comp_sepdgt.pyx":176
  *         else:
  *             comp_dgt_long_cd(f_combined, g_combined, L, W, a, M, pt, res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -3119,23 +3119,23 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   __pyx_t_1 = ((__pyx_v_W > 1) != 0);
   if (__pyx_t_1) {
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":173
+    /* "ltfatpy/comp/comp_sepdgt.pyx":177
  *             comp_dgt_long_cd(f_combined, g_combined, L, W, a, M, pt, res)
  *     if W > 1:
  *         res = np.reshape(res, (M, N, W), order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         res = np.reshape(res, (M, N), order='F')
  */
-    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 173, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 177, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 173, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 177, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_N); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 173, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_N); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 177, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_6 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 173, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_FromSize_t(__pyx_v_W); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 177, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 173, __pyx_L1_error)
+    __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 177, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_v_M);
     __Pyx_GIVEREF(__pyx_v_M);
@@ -3146,7 +3146,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_t_6);
     __pyx_t_3 = 0;
     __pyx_t_6 = 0;
-    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 173, __pyx_L1_error)
+    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 177, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_INCREF(__pyx_v_res);
     __Pyx_GIVEREF(__pyx_v_res);
@@ -3154,10 +3154,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     __Pyx_GIVEREF(__pyx_t_4);
     PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_4);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 173, __pyx_L1_error)
+    __pyx_t_4 = PyDict_New(); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 177, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
-    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 173, __pyx_L1_error)
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_6, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 173, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_4, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 177, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_6, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 177, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -3165,7 +3165,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     __Pyx_DECREF_SET(__pyx_v_res, __pyx_t_3);
     __pyx_t_3 = 0;
 
-    /* "ltfatpy/comp/comp_sepdgt.pyx":172
+    /* "ltfatpy/comp/comp_sepdgt.pyx":176
  *         else:
  *             comp_dgt_long_cd(f_combined, g_combined, L, W, a, M, pt, res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -3175,21 +3175,21 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     goto __pyx_L23;
   }
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":175
+  /* "ltfatpy/comp/comp_sepdgt.pyx":179
  *         res = np.reshape(res, (M, N, W), order='F')
  *     else:
  *         res = np.reshape(res, (M, N), order='F')             # <<<<<<<<<<<<<<
  *     return res
  */
   /*else*/ {
-    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 175, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 179, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_reshape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 175, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_reshape); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 179, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_N); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 175, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_FromSize_t(__pyx_v_N); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 179, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 175, __pyx_L1_error)
+    __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 179, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_INCREF(__pyx_v_M);
     __Pyx_GIVEREF(__pyx_v_M);
@@ -3197,7 +3197,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     __Pyx_GIVEREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 175, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 179, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_res);
     __Pyx_GIVEREF(__pyx_v_res);
@@ -3205,10 +3205,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
     __Pyx_GIVEREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_6);
     __pyx_t_6 = 0;
-    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 175, __pyx_L1_error)
+    __pyx_t_6 = PyDict_New(); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 179, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 175, __pyx_L1_error)
-    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 175, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_6, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 179, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 179, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
@@ -3218,7 +3218,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   }
   __pyx_L23:;
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":176
+  /* "ltfatpy/comp/comp_sepdgt.pyx":180
  *     else:
  *         res = np.reshape(res, (M, N), order='F')
  *     return res             # <<<<<<<<<<<<<<
@@ -3228,7 +3228,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(PyObject *__py
   __pyx_r = __pyx_v_res;
   goto __pyx_L0;
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":119
+  /* "ltfatpy/comp/comp_sepdgt.pyx":123
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_sepdgt(f, g, a, M, pt):             # <<<<<<<<<<<<<<
@@ -3296,26 +3296,26 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_11comp_sepdgt_1comp_sepdgt(PyObject *__
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_g)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, 1); __PYX_ERR(0, 119, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, 1); __PYX_ERR(0, 123, __pyx_L3_error)
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_a)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, 2); __PYX_ERR(0, 119, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, 2); __PYX_ERR(0, 123, __pyx_L3_error)
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_M)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, 3); __PYX_ERR(0, 119, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, 3); __PYX_ERR(0, 123, __pyx_L3_error)
         }
         case  4:
         if (likely((values[4] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_pt)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, 4); __PYX_ERR(0, 119, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, 4); __PYX_ERR(0, 123, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_sepdgt") < 0)) __PYX_ERR(0, 119, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_sepdgt") < 0)) __PYX_ERR(0, 123, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 5) {
       goto __pyx_L5_argtuple_error;
@@ -3334,7 +3334,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_11comp_sepdgt_1comp_sepdgt(PyObject *__
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 119, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_sepdgt", 1, 5, 5, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 123, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_sepdgt.comp_sepdgt", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -3353,7 +3353,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(CYTHON_UNUSED
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("comp_sepdgt", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(__pyx_v_f, __pyx_v_g, __pyx_v_a, __pyx_v_M, __pyx_v_pt, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 119, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_11comp_sepdgt_comp_sepdgt(__pyx_v_f, __pyx_v_g, __pyx_v_a, __pyx_v_M, __pyx_v_pt, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 123, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -15799,8 +15799,8 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 127, __pyx_L1_error)
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 140, __pyx_L1_error)
+  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 131, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 144, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 131, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(1, 146, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(1, 149, __pyx_L1_error)
@@ -15816,36 +15816,36 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":127
+  /* "ltfatpy/comp/comp_sepdgt.pyx":131
  *     cdef ltfatInt L, W
  *     if (f.dtype.type != np.float64) and (f.dtype.type != np.complex128):
  *         raise TypeError("f data should be numpy.float64 or complex128")             # <<<<<<<<<<<<<<
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  *         raise TypeError("g data should be numpy.float64 or complex128")
  */
-  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_f_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 127, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_f_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 131, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":129
+  /* "ltfatpy/comp/comp_sepdgt.pyx":133
  *         raise TypeError("f data should be numpy.float64 or complex128")
  *     if (g.dtype.type != np.float64) and (g.dtype.type != np.complex128):
  *         raise TypeError("g data should be numpy.float64 or complex128")             # <<<<<<<<<<<<<<
  *     if (f.dtype.type != g.dtype.type):
  *         if f.dtype.type == np.float64:
  */
-  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 129, __pyx_L1_error)
+  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64_o); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 133, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":136
+  /* "ltfatpy/comp/comp_sepdgt.pyx":140
  *             g = g.astype(np.complex128)
  *     if pt != FREQINV and pt != TIMEINV:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")             # <<<<<<<<<<<<<<
  * 
  *     if f.ndim > 1:
  */
-  __pyx_tuple__3 = PyTuple_Pack(1, __pyx_kp_s_pt_should_be_0_FREQINV_or_1_TIME); if (unlikely(!__pyx_tuple__3)) __PYX_ERR(0, 136, __pyx_L1_error)
+  __pyx_tuple__3 = PyTuple_Pack(1, __pyx_kp_s_pt_should_be_0_FREQINV_or_1_TIME); if (unlikely(!__pyx_tuple__3)) __PYX_ERR(0, 140, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__3);
   __Pyx_GIVEREF(__pyx_tuple__3);
 
@@ -16195,22 +16195,22 @@ PyMODINIT_FUNC PyInit_comp_sepdgt(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_sepdgt.pyx":62
+  /* "ltfatpy/comp/comp_sepdgt.pyx":66
  * 
  * import cython
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, dgt_phasetype, dgt_long_cd, dgt_long_d
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   /* "ltfatpy/comp/comp_sepdgt.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/ltfatpy/comp/comp_sepdgtreal.c b/ltfatpy/comp/comp_sepdgtreal.c
index ac838153c810881c9026fd46257bcdc867ed76b2..7bc8e370d92c157a0724a4a8e1b526383551d8ce 100644
--- a/ltfatpy/comp/comp_sepdgtreal.c
+++ b/ltfatpy/comp/comp_sepdgtreal.c
@@ -750,7 +750,7 @@ typedef volatile __pyx_atomic_int_type __pyx_atomic_int;
 #endif
 
 
-/* "ltfat.pxd":57
+/* "ltfat.pxd":61
  *     TIMEINV = 1
  * 
  * ctypedef size_t ltfatInt             # <<<<<<<<<<<<<<
@@ -777,7 +777,7 @@ struct __pyx_MemviewEnum_obj;
 struct __pyx_memoryview_obj;
 struct __pyx_memoryviewslice_obj;
 
-/* "ltfat.pxd":53
+/* "ltfat.pxd":57
  * 
  * 
  * cdef enum dgt_phasetype:             # <<<<<<<<<<<<<<
@@ -789,7 +789,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype {
   __pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV = 1
 };
 
-/* "ltfat.pxd":60
+/* "ltfat.pxd":64
  * 
  * # Values extracted from fftw3.h
  * cdef enum dct_kind:             # <<<<<<<<<<<<<<
@@ -803,7 +803,7 @@ enum __pyx_t_7ltfatpy_4comp_5ltfat_dct_kind {
   __pyx_e_7ltfatpy_4comp_5ltfat_DCTIV = 6
 };
 
-/* "ltfat.pxd":67
+/* "ltfat.pxd":71
  * 
  * # Values extracted from fftw3.h
  * cdef enum dst_kind:             # <<<<<<<<<<<<<<
@@ -1830,7 +1830,7 @@ static PyObject *__pyx_tuple__19;
 static PyObject *__pyx_tuple__20;
 static PyObject *__pyx_tuple__21;
 
-/* "ltfatpy/comp/comp_sepdgtreal.pyx":73
+/* "ltfatpy/comp/comp_sepdgtreal.pyx":77
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgtreal_long_d(const double[:] f, const double[:] g, const int L,             # <<<<<<<<<<<<<<
@@ -1846,7 +1846,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_long_d(__
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_dgtreal_long_d", 0);
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":77
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":81
  *                          const dgt_phasetype ptype, double complex[:] out):
  *     """ Internal function, do not use it """
  *     dgtreal_long_d(&f[0], &g[0], L, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1858,7 +1858,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_long_d(__
   __pyx_t_3 = 0;
   dgtreal_long_d((&(*((double *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), (&(*((double *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":73
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":77
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgtreal_long_d(const double[:] f, const double[:] g, const int L,             # <<<<<<<<<<<<<<
@@ -1873,7 +1873,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_long_d(__
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_sepdgtreal.pyx":84
+/* "ltfatpy/comp/comp_sepdgtreal.pyx":88
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgtreal_fb_d(const double[:] f, const double[:] g, const int L,             # <<<<<<<<<<<<<<
@@ -1889,7 +1889,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_fb_d(__Py
   Py_ssize_t __pyx_t_3;
   __Pyx_RefNannySetupContext("comp_dgtreal_fb_d", 0);
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":89
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":93
  *                        double complex[:] out):
  *     """ Internal function, do not use it """
  *     dgtreal_fb_d(&f[0], &g[0], L, gl, W, a, M, ptype, &out[0])             # <<<<<<<<<<<<<<
@@ -1901,7 +1901,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_fb_d(__Py
   __pyx_t_3 = 0;
   dgtreal_fb_d((&(*((double *) ( /* dim=0 */ (__pyx_v_f.data + __pyx_t_1 * __pyx_v_f.strides[0]) )))), (&(*((double *) ( /* dim=0 */ (__pyx_v_g.data + __pyx_t_2 * __pyx_v_g.strides[0]) )))), __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_v_a, __pyx_v_M, __pyx_v_ptype, (&(*((__pyx_t_double_complex *) ( /* dim=0 */ (__pyx_v_out.data + __pyx_t_3 * __pyx_v_out.strides[0]) )))));
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":84
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":88
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cdef comp_dgtreal_fb_d(const double[:] f, const double[:] g, const int L,             # <<<<<<<<<<<<<<
@@ -1916,7 +1916,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_fb_d(__Py
   return __pyx_r;
 }
 
-/* "ltfatpy/comp/comp_sepdgtreal.pyx":96
+/* "ltfatpy/comp/comp_sepdgtreal.pyx":100
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_sepdgtreal(f, g, a, M, pt):             # <<<<<<<<<<<<<<
@@ -1954,44 +1954,44 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   __Pyx_INCREF(__pyx_v_f);
   __Pyx_INCREF(__pyx_v_g);
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":103
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":107
  *     """
  *     cdef int L, W
  *     if f.dtype.type != np.float64:             # <<<<<<<<<<<<<<
  *         raise TypeError("f data should be numpy.float64")
  *     if g.dtype.type != np.float64:
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_float64); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_float64); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 103, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 107, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":104
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":108
  *     cdef int L, W
  *     if f.dtype.type != np.float64:
  *         raise TypeError("f data should be numpy.float64")             # <<<<<<<<<<<<<<
  *     if g.dtype.type != np.float64:
  *         raise TypeError("g data should be numpy.float64")
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 104, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 108, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 104, __pyx_L1_error)
+    __PYX_ERR(0, 108, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":103
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":107
  *     """
  *     cdef int L, W
  *     if f.dtype.type != np.float64:             # <<<<<<<<<<<<<<
@@ -2000,44 +2000,44 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  */
   }
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":105
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":109
  *     if f.dtype.type != np.float64:
  *         raise TypeError("f data should be numpy.float64")
  *     if g.dtype.type != np.float64:             # <<<<<<<<<<<<<<
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != FREQINV and pt != TIMEINV:
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_type); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_float64); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 105, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 109, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":106
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":110
  *         raise TypeError("f data should be numpy.float64")
  *     if g.dtype.type != np.float64:
  *         raise TypeError("g data should be numpy.float64")             # <<<<<<<<<<<<<<
  *     if pt != FREQINV and pt != TIMEINV:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 106, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 106, __pyx_L1_error)
+    __PYX_ERR(0, 110, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":105
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":109
  *     if f.dtype.type != np.float64:
  *         raise TypeError("f data should be numpy.float64")
  *     if g.dtype.type != np.float64:             # <<<<<<<<<<<<<<
@@ -2046,48 +2046,48 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  */
   }
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":107
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":111
  *     if g.dtype.type != np.float64:
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != FREQINV and pt != TIMEINV:             # <<<<<<<<<<<<<<
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  * 
  */
-  __pyx_t_1 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_e_7ltfatpy_4comp_5ltfat_FREQINV); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_e_7ltfatpy_4comp_5ltfat_FREQINV); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_v_pt, __pyx_t_1, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_v_pt, __pyx_t_1, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_5) {
   } else {
     __pyx_t_4 = __pyx_t_5;
     goto __pyx_L6_bool_binop_done;
   }
-  __pyx_t_2 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_From_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_e_7ltfatpy_4comp_5ltfat_TIMEINV); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_pt, __pyx_t_2, Py_NE); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 107, __pyx_L1_error)
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) __PYX_ERR(0, 111, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_4 = __pyx_t_5;
   __pyx_L6_bool_binop_done:;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":108
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":112
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != FREQINV and pt != TIMEINV:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")             # <<<<<<<<<<<<<<
  * 
  *     if f.ndim > 1:
  */
-    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 108, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_Call(__pyx_builtin_TypeError, __pyx_tuple__3, NULL); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_Raise(__pyx_t_1, 0, 0, 0);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __PYX_ERR(0, 108, __pyx_L1_error)
+    __PYX_ERR(0, 112, __pyx_L1_error)
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":107
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":111
  *     if g.dtype.type != np.float64:
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != FREQINV and pt != TIMEINV:             # <<<<<<<<<<<<<<
@@ -2096,61 +2096,61 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  */
   }
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":110
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":114
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  * 
  *     if f.ndim > 1:             # <<<<<<<<<<<<<<
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  */
-  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 110, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 114, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":111
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":115
  * 
  *     if f.ndim > 1:
  *         if f.ndim > 2:             # <<<<<<<<<<<<<<
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]
  */
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 111, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 115, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_sepdgtreal.pyx":112
+      /* "ltfatpy/comp/comp_sepdgtreal.pyx":116
  *     if f.ndim > 1:
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))             # <<<<<<<<<<<<<<
  *         L = f.shape[0]
  *         W = f.shape[1]
  */
-      __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(__pyx_v_f);
       __Pyx_GIVEREF(__pyx_v_f);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_f);
-      __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_7 = __Pyx_PyInt_SubtractObjC(__pyx_t_6, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyInt_SubtractObjC(__pyx_t_6, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_6 = PyTuple_New(2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_int_2);
       __Pyx_GIVEREF(__pyx_int_2);
@@ -2158,12 +2158,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
       __Pyx_GIVEREF(__pyx_t_7);
       PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_7);
       __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_6, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_6, NULL); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_axis, __pyx_t_7) < 0) __PYX_ERR(0, 112, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_axis, __pyx_t_7) < 0) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 112, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 116, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -2171,7 +2171,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
       __Pyx_DECREF_SET(__pyx_v_f, __pyx_t_7);
       __pyx_t_7 = 0;
 
-      /* "ltfatpy/comp/comp_sepdgtreal.pyx":111
+      /* "ltfatpy/comp/comp_sepdgtreal.pyx":115
  * 
  *     if f.ndim > 1:
  *         if f.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2180,58 +2180,58 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  */
     }
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":113
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":117
  *         if f.ndim > 2:
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]             # <<<<<<<<<<<<<<
  *         W = f.shape[1]
  *         f_combined = f.reshape(L*W, order='F')
  */
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 113, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 117, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_7, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 113, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_7, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 117, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_3); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 113, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_3); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 117, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_v_L = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":114
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":118
  *             f = np.squeeze(f, axis=range(2, f.ndim-1))
  *         L = f.shape[0]
  *         W = f.shape[1]             # <<<<<<<<<<<<<<
  *         f_combined = f.reshape(L*W, order='F')
  *     else:
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_3, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_3, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_7); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 114, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_7); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 118, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __pyx_v_W = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":115
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":119
  *         L = f.shape[0]
  *         W = f.shape[1]
  *         f_combined = f.reshape(L*W, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         L = f.shape[0]
  */
-    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 115, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_reshape); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 119, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_3 = __Pyx_PyInt_From_int((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 115, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyInt_From_int((__pyx_v_L * __pyx_v_W)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 119, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 115, __pyx_L1_error)
+    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 119, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 115, __pyx_L1_error)
+    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 119, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 115, __pyx_L1_error)
-    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 115, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 119, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_Call(__pyx_t_7, __pyx_t_1, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 119, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -2239,7 +2239,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     __pyx_v_f_combined = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":110
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":114
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  * 
  *     if f.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2249,7 +2249,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     goto __pyx_L8;
   }
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":117
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":121
  *         f_combined = f.reshape(L*W, order='F')
  *     else:
  *         L = f.shape[0]             # <<<<<<<<<<<<<<
@@ -2257,16 +2257,16 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  *         f_combined = f
  */
   /*else*/ {
-    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_shape); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_GetItemInt(__pyx_t_2, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_3); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 117, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_3); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 121, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_v_L = __pyx_t_8;
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":118
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":122
  *     else:
  *         L = f.shape[0]
  *         W = 1             # <<<<<<<<<<<<<<
@@ -2275,7 +2275,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  */
     __pyx_v_W = 1;
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":119
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":123
  *         L = f.shape[0]
  *         W = 1
  *         f_combined = f             # <<<<<<<<<<<<<<
@@ -2287,77 +2287,77 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   }
   __pyx_L8:;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":121
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":125
  *         f_combined = f
  * 
  *     cdef ltfatInt gl = g.shape[0]             # <<<<<<<<<<<<<<
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  */
-  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 121, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 125, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 121, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_3, 0, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 125, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_9 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_9 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 121, __pyx_L1_error)
+  __pyx_t_9 = __Pyx_PyInt_As_size_t(__pyx_t_2); if (unlikely((__pyx_t_9 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 125, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_gl = __pyx_t_9;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":122
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":126
  * 
  *     cdef ltfatInt gl = g.shape[0]
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  */
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, __pyx_int_1, Py_GT); __Pyx_XGOTREF(__pyx_t_3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 122, __pyx_L1_error)
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 126, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":123
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":127
  *     cdef ltfatInt gl = g.shape[0]
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if f.ndim == 2:
  */
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_int_2, Py_GT); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 123, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 127, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_sepdgtreal.pyx":124
+      /* "ltfatpy/comp/comp_sepdgtreal.pyx":128
  *     if g.ndim > 1:
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))             # <<<<<<<<<<<<<<
  *         if f.ndim == 2:
  *             gl = gl * g.shape[1]
  */
-      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_squeeze); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(__pyx_v_g);
       __Pyx_GIVEREF(__pyx_v_g);
       PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_g);
-      __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_ndim); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_6 = __Pyx_PyInt_SubtractObjC(__pyx_t_7, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyInt_SubtractObjC(__pyx_t_7, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_INCREF(__pyx_int_2);
       __Pyx_GIVEREF(__pyx_int_2);
@@ -2365,12 +2365,12 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
       __Pyx_GIVEREF(__pyx_t_6);
       PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_6);
       __pyx_t_6 = 0;
-      __pyx_t_6 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_Call(__pyx_builtin_range, __pyx_t_7, NULL); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_axis, __pyx_t_6) < 0) __PYX_ERR(0, 124, __pyx_L1_error)
+      if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_axis, __pyx_t_6) < 0) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 124, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 128, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2378,7 +2378,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
       __Pyx_DECREF_SET(__pyx_v_g, __pyx_t_6);
       __pyx_t_6 = 0;
 
-      /* "ltfatpy/comp/comp_sepdgtreal.pyx":123
+      /* "ltfatpy/comp/comp_sepdgtreal.pyx":127
  *     cdef ltfatInt gl = g.shape[0]
  *     if g.ndim > 1:
  *         if g.ndim > 2:             # <<<<<<<<<<<<<<
@@ -2387,45 +2387,45 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  */
     }
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":125
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":129
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if f.ndim == 2:             # <<<<<<<<<<<<<<
  *             gl = gl * g.shape[1]
  *         g_combined = g.reshape(gl, order='F')
  */
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_f, __pyx_n_s_ndim); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_1 = __Pyx_PyInt_EqObjC(__pyx_t_6, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyInt_EqObjC(__pyx_t_6, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 125, __pyx_L1_error)
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) __PYX_ERR(0, 129, __pyx_L1_error)
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     if (__pyx_t_4) {
 
-      /* "ltfatpy/comp/comp_sepdgtreal.pyx":126
+      /* "ltfatpy/comp/comp_sepdgtreal.pyx":130
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if f.ndim == 2:
  *             gl = gl * g.shape[1]             # <<<<<<<<<<<<<<
  *         g_combined = g.reshape(gl, order='F')
  *     else:
  */
-      __pyx_t_1 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_1 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_shape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_6, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_6, 1, long, 1, __Pyx_PyInt_From_long, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyNumber_Multiply(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_6 = PyNumber_Multiply(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_9 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_9 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 126, __pyx_L1_error)
+      __pyx_t_9 = __Pyx_PyInt_As_size_t(__pyx_t_6); if (unlikely((__pyx_t_9 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 130, __pyx_L1_error)
       __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __pyx_v_gl = __pyx_t_9;
 
-      /* "ltfatpy/comp/comp_sepdgtreal.pyx":125
+      /* "ltfatpy/comp/comp_sepdgtreal.pyx":129
  *         if g.ndim > 2:
  *             g = np.squeeze(g, axis=range(2, g.ndim-1))
  *         if f.ndim == 2:             # <<<<<<<<<<<<<<
@@ -2434,26 +2434,26 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  */
     }
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":127
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":131
  *         if f.ndim == 2:
  *             gl = gl * g.shape[1]
  *         g_combined = g.reshape(gl, order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         g_combined = g
  */
-    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_v_g, __pyx_n_s_reshape); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_FromSize_t(__pyx_v_gl); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 127, __pyx_L1_error)
+    __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 127, __pyx_L1_error)
-    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 127, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_2, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 131, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_Call(__pyx_t_6, __pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 131, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -2461,7 +2461,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     __pyx_v_g_combined = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":122
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":126
  * 
  *     cdef ltfatInt gl = g.shape[0]
  *     if g.ndim > 1:             # <<<<<<<<<<<<<<
@@ -2471,7 +2471,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     goto __pyx_L10;
   }
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":129
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":133
  *         g_combined = g.reshape(gl, order='F')
  *     else:
  *         g_combined = g             # <<<<<<<<<<<<<<
@@ -2484,76 +2484,76 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   }
   __pyx_L10:;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":130
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":134
  *     else:
  *         g_combined = g
  *     cdef int N = L//a             # <<<<<<<<<<<<<<
  *     cdef int M2 = M // 2 + 1
  *     res = np.ndarray((M2 * W * (L // a)), dtype=np.complex128)
  */
-  __pyx_t_3 = __Pyx_PyInt_From_int(__pyx_v_L); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_int(__pyx_v_L); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = PyNumber_FloorDivide(__pyx_t_3, __pyx_v_a); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_2 = PyNumber_FloorDivide(__pyx_t_3, __pyx_v_a); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_2); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 130, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_2); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_v_N = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":131
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":135
  *         g_combined = g
  *     cdef int N = L//a
  *     cdef int M2 = M // 2 + 1             # <<<<<<<<<<<<<<
  *     res = np.ndarray((M2 * W * (L // a)), dtype=np.complex128)
  *     if gl < L:
  */
-  __pyx_t_2 = __Pyx_PyInt_FloorDivideObjC(__pyx_v_M, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 131, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyInt_FloorDivideObjC(__pyx_v_M, __pyx_int_2, 2, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 135, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyInt_AddObjC(__pyx_t_2, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 131, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_AddObjC(__pyx_t_2, __pyx_int_1, 1, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 135, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_3); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 131, __pyx_L1_error)
+  __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_t_3); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 135, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_v_M2 = __pyx_t_8;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":132
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":136
  *     cdef int N = L//a
  *     cdef int M2 = M // 2 + 1
  *     res = np.ndarray((M2 * W * (L // a)), dtype=np.complex128)             # <<<<<<<<<<<<<<
  *     if gl < L:
  *         comp_dgtreal_fb_d(f_combined, g_combined, L, gl, W, a, M, M2, pt, res)
  */
-  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_ndarray); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __pyx_t_3 = __Pyx_PyInt_From_int((__pyx_v_M2 * __pyx_v_W)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_PyInt_From_int((__pyx_v_M2 * __pyx_v_W)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_1 = __Pyx_PyInt_From_int(__pyx_v_L); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_PyInt_From_int(__pyx_v_L); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_6 = PyNumber_FloorDivide(__pyx_t_1, __pyx_v_a); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_6 = PyNumber_FloorDivide(__pyx_t_1, __pyx_v_a); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyNumber_Multiply(__pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_1 = PyNumber_Multiply(__pyx_t_3, __pyx_t_6); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_GIVEREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_1);
   __pyx_t_1 = 0;
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_complex128); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_complex128); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, __pyx_t_7) < 0) __PYX_ERR(0, 132, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, __pyx_t_7) < 0) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_6, __pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 132, __pyx_L1_error)
+  __pyx_t_7 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_6, __pyx_t_1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_7);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -2561,7 +2561,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   __pyx_v_res = __pyx_t_7;
   __pyx_t_7 = 0;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":133
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":137
  *     cdef int M2 = M // 2 + 1
  *     res = np.ndarray((M2 * W * (L // a)), dtype=np.complex128)
  *     if gl < L:             # <<<<<<<<<<<<<<
@@ -2571,7 +2571,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   __pyx_t_4 = ((__pyx_v_gl < __pyx_v_L) != 0);
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":134
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":138
  *     res = np.ndarray((M2 * W * (L // a)), dtype=np.complex128)
  *     if gl < L:
  *         comp_dgtreal_fb_d(f_combined, g_combined, L, gl, W, a, M, M2, pt, res)             # <<<<<<<<<<<<<<
@@ -2579,15 +2579,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  *         comp_dgtreal_long_d(f_combined, g_combined, L, W, a, M, M2, pt, res)
  */
     __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_f_combined);
-    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
+    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
     __pyx_t_11 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_g_combined);
-    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
-    __pyx_t_12 = __Pyx_PyInt_As_int(__pyx_v_M); if (unlikely((__pyx_t_12 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
-    __pyx_t_13 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L1_error)
+    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_12 = __Pyx_PyInt_As_int(__pyx_v_M); if (unlikely((__pyx_t_12 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_13 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 138, __pyx_L1_error)
     __pyx_t_14 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 134, __pyx_L1_error)
-    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_fb_d(__pyx_t_10, __pyx_t_11, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_8, __pyx_t_12, __pyx_v_M2, __pyx_t_13, __pyx_t_14); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 134, __pyx_L1_error)
+    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_fb_d(__pyx_t_10, __pyx_t_11, __pyx_v_L, __pyx_v_gl, __pyx_v_W, __pyx_t_8, __pyx_t_12, __pyx_v_M2, __pyx_t_13, __pyx_t_14); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 138, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __PYX_XDEC_MEMVIEW(&__pyx_t_10, 1);
     __pyx_t_10.memview = NULL;
@@ -2600,7 +2600,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     __pyx_t_14.data = NULL;
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":133
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":137
  *     cdef int M2 = M // 2 + 1
  *     res = np.ndarray((M2 * W * (L // a)), dtype=np.complex128)
  *     if gl < L:             # <<<<<<<<<<<<<<
@@ -2610,7 +2610,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     goto __pyx_L13;
   }
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":136
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":140
  *         comp_dgtreal_fb_d(f_combined, g_combined, L, gl, W, a, M, M2, pt, res)
  *     else:
  *         comp_dgtreal_long_d(f_combined, g_combined, L, W, a, M, M2, pt, res)             # <<<<<<<<<<<<<<
@@ -2619,15 +2619,15 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  */
   /*else*/ {
     __pyx_t_11 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_f_combined);
-    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 136, __pyx_L1_error)
+    if (unlikely(!__pyx_t_11.memview)) __PYX_ERR(0, 140, __pyx_L1_error)
     __pyx_t_10 = __Pyx_PyObject_to_MemoryviewSlice_ds_double(__pyx_v_g_combined);
-    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 136, __pyx_L1_error)
-    __pyx_t_12 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_12 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 136, __pyx_L1_error)
-    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_v_M); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 136, __pyx_L1_error)
-    __pyx_t_13 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 136, __pyx_L1_error)
+    if (unlikely(!__pyx_t_10.memview)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_12 = __Pyx_PyInt_As_int(__pyx_v_a); if (unlikely((__pyx_t_12 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_8 = __Pyx_PyInt_As_int(__pyx_v_M); if (unlikely((__pyx_t_8 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_13 = ((enum __pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype)__Pyx_PyInt_As_enum____pyx_t_7ltfatpy_4comp_5ltfat_dgt_phasetype(__pyx_v_pt)); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 140, __pyx_L1_error)
     __pyx_t_14 = __Pyx_PyObject_to_MemoryviewSlice_ds___pyx_t_double_complex(__pyx_v_res);
-    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 136, __pyx_L1_error)
-    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_long_d(__pyx_t_11, __pyx_t_10, __pyx_v_L, __pyx_v_W, __pyx_t_12, __pyx_t_8, __pyx_v_M2, __pyx_t_13, __pyx_t_14); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 136, __pyx_L1_error)
+    if (unlikely(!__pyx_t_14.memview)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_7 = __pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_dgtreal_long_d(__pyx_t_11, __pyx_t_10, __pyx_v_L, __pyx_v_W, __pyx_t_12, __pyx_t_8, __pyx_v_M2, __pyx_t_13, __pyx_t_14); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 140, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
     __PYX_XDEC_MEMVIEW(&__pyx_t_11, 1);
     __pyx_t_11.memview = NULL;
@@ -2642,7 +2642,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   }
   __pyx_L13:;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":137
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":141
  *     else:
  *         comp_dgtreal_long_d(f_combined, g_combined, L, W, a, M, M2, pt, res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2652,25 +2652,25 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   __pyx_t_4 = ((__pyx_v_W > 1) != 0);
   if (__pyx_t_4) {
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":138
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":142
  *         comp_dgtreal_long_d(f_combined, g_combined, L, W, a, M, M2, pt, res)
  *     if W > 1:
  *         res = np.reshape(res, (M2, N, W), order='F')             # <<<<<<<<<<<<<<
  *     else:
  *         res = np.reshape(res, (M2, N), order='F')
  */
-    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_7 = __Pyx_PyInt_From_int(__pyx_v_M2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_7 = __Pyx_PyInt_From_int(__pyx_v_M2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_6 = __Pyx_PyInt_From_int(__pyx_v_N); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_From_int(__pyx_v_N); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_2 = __Pyx_PyInt_From_int(__pyx_v_W); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_From_int(__pyx_v_W); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_7);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_7);
@@ -2681,7 +2681,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     __pyx_t_7 = 0;
     __pyx_t_6 = 0;
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_res);
     __Pyx_GIVEREF(__pyx_v_res);
@@ -2689,10 +2689,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     __Pyx_GIVEREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 138, __pyx_L1_error)
+    __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
-    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 138, __pyx_L1_error)
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 138, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_3, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 142, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_1, __pyx_t_2, __pyx_t_3); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 142, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2700,7 +2700,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     __Pyx_DECREF_SET(__pyx_v_res, __pyx_t_6);
     __pyx_t_6 = 0;
 
-    /* "ltfatpy/comp/comp_sepdgtreal.pyx":137
+    /* "ltfatpy/comp/comp_sepdgtreal.pyx":141
  *     else:
  *         comp_dgtreal_long_d(f_combined, g_combined, L, W, a, M, M2, pt, res)
  *     if W > 1:             # <<<<<<<<<<<<<<
@@ -2710,7 +2710,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     goto __pyx_L14;
   }
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":140
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":144
  *         res = np.reshape(res, (M2, N, W), order='F')
  *     else:
  *         res = np.reshape(res, (M2, N), order='F')             # <<<<<<<<<<<<<<
@@ -2718,16 +2718,16 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
  *     return res
  */
   /*else*/ {
-    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_GetModuleGlobalName(__pyx_n_s_np); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_6, __pyx_n_s_reshape); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = __Pyx_PyInt_From_int(__pyx_v_M2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyInt_From_int(__pyx_v_M2); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_2 = __Pyx_PyInt_From_int(__pyx_v_N); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_2 = __Pyx_PyInt_From_int(__pyx_v_N); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_6);
@@ -2735,7 +2735,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_2);
     __pyx_t_6 = 0;
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_res);
     __Pyx_GIVEREF(__pyx_v_res);
@@ -2743,10 +2743,10 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 140, __pyx_L1_error)
+    __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_1);
-    if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 140, __pyx_L1_error)
-    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 140, __pyx_L1_error)
+    if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_order, __pyx_n_s_F) < 0) __PYX_ERR(0, 144, __pyx_L1_error)
+    __pyx_t_6 = __Pyx_PyObject_Call(__pyx_t_3, __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 144, __pyx_L1_error)
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -2756,7 +2756,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   }
   __pyx_L14:;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":142
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":146
  *         res = np.reshape(res, (M2, N), order='F')
  * 
  *     return res             # <<<<<<<<<<<<<<
@@ -2766,7 +2766,7 @@ static PyObject *__pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(PyObje
   __pyx_r = __pyx_v_res;
   goto __pyx_L0;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":96
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":100
  * # assume no negative indexing.
  * @cython.wraparound(False)
  * cpdef comp_sepdgtreal(f, g, a, M, pt):             # <<<<<<<<<<<<<<
@@ -2832,26 +2832,26 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_15comp_sepdgtreal_1comp_sepdgtreal(PyOb
         case  1:
         if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_g)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, 1); __PYX_ERR(0, 96, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, 1); __PYX_ERR(0, 100, __pyx_L3_error)
         }
         case  2:
         if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_a)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, 2); __PYX_ERR(0, 96, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, 2); __PYX_ERR(0, 100, __pyx_L3_error)
         }
         case  3:
         if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_M)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, 3); __PYX_ERR(0, 96, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, 3); __PYX_ERR(0, 100, __pyx_L3_error)
         }
         case  4:
         if (likely((values[4] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_pt)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, 4); __PYX_ERR(0, 96, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, 4); __PYX_ERR(0, 100, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_sepdgtreal") < 0)) __PYX_ERR(0, 96, __pyx_L3_error)
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "comp_sepdgtreal") < 0)) __PYX_ERR(0, 100, __pyx_L3_error)
       }
     } else if (PyTuple_GET_SIZE(__pyx_args) != 5) {
       goto __pyx_L5_argtuple_error;
@@ -2870,7 +2870,7 @@ static PyObject *__pyx_pw_7ltfatpy_4comp_15comp_sepdgtreal_1comp_sepdgtreal(PyOb
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 96, __pyx_L3_error)
+  __Pyx_RaiseArgtupleInvalid("comp_sepdgtreal", 1, 5, 5, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 100, __pyx_L3_error)
   __pyx_L3_error:;
   __Pyx_AddTraceback("ltfatpy.comp.comp_sepdgtreal.comp_sepdgtreal", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
@@ -2889,7 +2889,7 @@ static PyObject *__pyx_pf_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(CYTHO
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("comp_sepdgtreal", 0);
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(__pyx_v_f, __pyx_v_g, __pyx_v_a, __pyx_v_M, __pyx_v_pt, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 96, __pyx_L1_error)
+  __pyx_t_1 = __pyx_f_7ltfatpy_4comp_15comp_sepdgtreal_comp_sepdgtreal(__pyx_v_f, __pyx_v_g, __pyx_v_a, __pyx_v_M, __pyx_v_pt, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 100, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
@@ -15335,8 +15335,8 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 104, __pyx_L1_error)
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 112, __pyx_L1_error)
+  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 116, __pyx_L1_error)
   __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(1, 131, __pyx_L1_error)
   __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(1, 146, __pyx_L1_error)
   __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(1, 149, __pyx_L1_error)
@@ -15352,36 +15352,36 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":104
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":108
  *     cdef int L, W
  *     if f.dtype.type != np.float64:
  *         raise TypeError("f data should be numpy.float64")             # <<<<<<<<<<<<<<
  *     if g.dtype.type != np.float64:
  *         raise TypeError("g data should be numpy.float64")
  */
-  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_f_data_should_be_numpy_float64); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 104, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_s_f_data_should_be_numpy_float64); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 108, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":106
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":110
  *         raise TypeError("f data should be numpy.float64")
  *     if g.dtype.type != np.float64:
  *         raise TypeError("g data should be numpy.float64")             # <<<<<<<<<<<<<<
  *     if pt != FREQINV and pt != TIMEINV:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")
  */
-  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 106, __pyx_L1_error)
+  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_s_g_data_should_be_numpy_float64); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(0, 110, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":108
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":112
  *         raise TypeError("g data should be numpy.float64")
  *     if pt != FREQINV and pt != TIMEINV:
  *         raise TypeError("pt should be 0 (FREQINV) or 1 (TIMEINV)")             # <<<<<<<<<<<<<<
  * 
  *     if f.ndim > 1:
  */
-  __pyx_tuple__3 = PyTuple_Pack(1, __pyx_kp_s_pt_should_be_0_FREQINV_or_1_TIME); if (unlikely(!__pyx_tuple__3)) __PYX_ERR(0, 108, __pyx_L1_error)
+  __pyx_tuple__3 = PyTuple_Pack(1, __pyx_kp_s_pt_should_be_0_FREQINV_or_1_TIME); if (unlikely(!__pyx_tuple__3)) __PYX_ERR(0, 112, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple__3);
   __Pyx_GIVEREF(__pyx_tuple__3);
 
@@ -15732,43 +15732,43 @@ PyMODINIT_FUNC PyInit_comp_sepdgtreal(void)
   if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   #endif
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":62
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":66
  * 
  * import cython
  * import numpy as np             # <<<<<<<<<<<<<<
  * 
  * from ltfat cimport ltfatInt, dgt_phasetype, dgtreal_fb_d, dgtreal_long_d
  */
-  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 62, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_Import(__pyx_n_s_numpy, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 62, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_1) < 0) __PYX_ERR(0, 66, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "ltfatpy/comp/comp_sepdgtreal.pyx":66
+  /* "ltfatpy/comp/comp_sepdgtreal.pyx":70
  * from ltfat cimport ltfatInt, dgt_phasetype, dgtreal_fb_d, dgtreal_long_d
  * from ltfatpy.comp.ltfat cimport TIMEINV, FREQINV
  * from numpy import int64             # <<<<<<<<<<<<<<
  * 
  * 
  */
-  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
+  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 70, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_n_s_int64);
   __Pyx_GIVEREF(__pyx_n_s_int64);
   PyList_SET_ITEM(__pyx_t_1, 0, __pyx_n_s_int64);
-  __pyx_t_2 = __Pyx_Import(__pyx_n_s_numpy, __pyx_t_1, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 66, __pyx_L1_error)
+  __pyx_t_2 = __Pyx_Import(__pyx_n_s_numpy, __pyx_t_1, -1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 70, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_int64); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 66, __pyx_L1_error)
+  __pyx_t_1 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_int64); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 70, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_int64, __pyx_t_1) < 0) __PYX_ERR(0, 66, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_int64, __pyx_t_1) < 0) __PYX_ERR(0, 70, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
   /* "ltfatpy/comp/comp_sepdgtreal.pyx":1
  * # -*- coding: utf-8 -*-             # <<<<<<<<<<<<<<
  * # ######### COPYRIGHT #########
- * #
+ * # Credits
  */
   __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_2);