Definitions for "FFTW "
FFTW is a fast C FFT library. It includes complex, real, symmetric, multidimensional, and parallel transforms, and can handle arbitrary array sizes efficiently.It is typically faster than other freely available FFT implementations, and is even competitive with vendor-tuned libraries .
Fastest Fourier Transform in the West. This is a C subroutine library.
FFTW, for "Fastest Fourier Transform in the West," is a software library for computing discrete Fourier transforms (DFTs), developed by Matteo Frigo and Steven G. Johnson at the MIT Laboratory for Computer Science.Frigo, M. and Johnson, S. G., "http://www.fftw.org/fftw-paper-ieee.pdf The design and implementation of FFTW3", Proceedings of the IEEE, 93(2), February 2005, 216 - 231.