/* begin *

   fftw 3.3.10 (Discrete Fourier Transform routines)

   FFTW is a free collection of fast C routines for computing the
   Discrete Fourier Transform in one or more dimensions. It includes
   complex, real, symmetric, and parallel transforms, and can handle
   arbitrary array sizes efficiently.

   Homepage: http://www.fftw.org



 * end */