\ References for the FFTW FAQ \ the FFTW web page \ http://www.fftw.org FFTW Windows installation notes \ http://www.fftw.org/install/windows.html Categories of Free and Non-Free Software \ http://www.gnu.org/philosophy/categories.html the Caml web page \ http://caml.inria.fr pruned FFTs with FFTW \ http://www.fftw.org/pruned.html