Improve installation documentation

doc/install.rst

@@ -9,6 +9,10 @@ Prerequisites
 
 Before installing **ltfatpy** you must check that the following software are installed on your system.
 
+For `Debian <https://www.debian.org/>`_ based Linux systems (including `Ubuntu <https://www.ubuntu.com/>`_) and `Conda <https://conda.io>`_ users on Linux and macOS, simple solutions are provided in the section `Installing ltfatpy`_ to easily install the recquired dependencies.
+
+Windows users should be able to use `Ubuntu on Windows <https://www.microsoft.com/en-us/p/ubuntu/9nblggh4msv6>`_ via the `Windows Subsystem for Linux <https://docs.microsoft.com/en-us/windows/wsl>`_ to be able to run **ltfatpy** on Windows.
+
 CMake
 -----
 A version of `cmake <https://cmake.org/>`_ >= 2.6 is required to install **ltfatpy**.
@@ -29,39 +33,112 @@ Scientific Python libraries
 ---------------------------
 
 * You need to have **libfftw3**, development version, installed. 
-    * For debian based linux systems use: ``$apt install libfftw3-dev``.
-    * For MACOS X based systems, you may use: ``sudo port install fftw-3 fftw-3-single``.
+    * For Debian based Linux systems use::
+
+        apt install libfftw3-dev
+
+    * For macOS based systems, you may use::
+
+        sudo port install fftw-3 fftw-3-single
+
     * For other systems, please read the documentation of `fftw <http://www.fftw.org/>`_.
+
+* You need to have the `LAPACK <http://www.netlib.org/lapack/>`_ library.
+
+    * For Debian based Linux systems use::
+
+        apt install liblapack-dev
+
 * **ltfatpy** is using **numpy** >= 1.9, **scipy** >= 0.15 and **matplotlib** >= 1.4. For installing those packages read the instructions `here <http://www.scipy.org/install.html>`__.
 
 Downloading **ltfatpy**
-========================
+=======================
 
-* The last stable release of **ltfatpy** is available on `PyPI <https://pypi.python.org/pypi/ltfatpy>`_.
-* You can clone the git repository of **ltfatpy** from `here <https://gitlab.lis-lab.fr/dev/ltfatpy>`__.
+* The last stable release of **ltfatpy** is available on `PyPI <https://pypi.org/project/ltfatpy/>`_.
+* You can clone the Git repository of **ltfatpy** from `here <https://gitlab.lis-lab.fr/dev/ltfatpy>`__.
+* Conda packages of **ltfatpy** are available `here <https://anaconda.org/ltfatpy/>`__.
 
 Installing **ltfatpy**
-========================
+======================
 
 From sources
 ------------
 
-From ltfatpy-x.x.x/ directory use ``pip install .``
+From ltfatpy-x.x.x/ directory use::
+
+    pip install .
 
 From PyPI
 ---------
 
-Just use : ``pip install ltfatpy``
+Just use::
+
+    pip install ltfatpy
+
+For Debian based Linux systems
+------------------------------
+
+A precompiled **python3-ltfatpy** package is available for Debian Sid and Ubuntu 17.10 and later.
+It can be installed with::
+
+    apt install python3-ltfatpy
+
+Alternatively, to compile the package, the following dependencies are required::
+
+    apt install --no-install-recommends libdpkg-perl cmake gcc g++ make libfftw3-dev liblapack-dev cython3 python3 python3-dev python3-setuptools python3-pip python3-wheel python3-tk python3-matplotlib python3-scipy
+
+The package can then be installed using pip::
+
+    pip3 install --no-deps ltfatpy
+
+For Conda users
+---------------
+
+A prebuilt Conda package of **ltfatpy** might already be available for your plateform. You can check `here <https://anaconda.org/ltfatpy/>`__.
+If it is the case, simply install this Conda package with::
+
+    conda install -c anaconda -c conda-forge -c ltfatpy ltfatpy
+
+If no prebuilt Conda package is available, the following instructions can be used to install **ltfatpy** in Anaconda using pip.
+
+When installing **ltfatpy** in Anaconda, it is important to note that **ltfatpy** is not compatible with the `MKL-powered binary versions <https://docs.anaconda.com/mkl-optimizations/>`_  of NumPy and SciPy.
+
+Therefore, before installing **ltfatpy**, it is necessary to force the installation of the non-MKL version of the NumPy and SciPy Conda packages with::
+
+    conda install nomkl numpy scipy
+
+To be able to compile **ltfatpy** you need the gcc compiler (or an equivalent on macOS) installed on your computer.
+
+For Debian based Linux systems that mean that the following packages must be installed::
+
+    apt install --no-install-recommends gcc g++
+
+For macOS that means that you need to install the **Xcode Command Line Tools**.
+
+In Anaconda, the **ltfatpy** dependencies can directly be installed as Conda packages.
+Some needed dependencies are not provided in the main anaconda channel, but they are provided in the conda-forge channel.
+
+These dependencies can be installed with the following commands::
+
+    conda install cmake make fftw cython six nomkl numpy scipy matplotlib
+    conda install -c conda-forge lapack openblas
+
+The **ltfatpy** package can then be installed using pip::
+
+    pip install ltfatpy
+
 
 Building documentation with Sphinx
 ==================================
 
 Make sure you have Sphinx installed as described `here <http://sphinx-doc.org/tutorial.html#install-sphinx>`__.
 
-Before building documentation you have to install **sphinxcontrib-bibtex** :
-``pip install sphinxcontrib-bibtex``
+Before building documentation you have to install **sphinxcontrib-bibtex**::
+
+    pip install sphinxcontrib-bibtex
+
+Then you have to use the setup.py build_sphinx command::
 
-Then you have to use the setup.py build_sphinx command :
-``python setup.py build_sphinx``
+    python setup.py build_sphinx
 
 If errors occur, make sure you installed ltfatpy before building the sphinx documentation.