Fftw

C fft library

C fft library

Complete list of C/C++ FFT libraries

LibraryDate of first releaseLicense
FFTW1997GPLv2+ or commercial
KISS FFT2003BSD
pffft2011FFTPACK, similar to BSD
marton78's pffft fork2015same as pffft

  1. What is FFT library?
  2. What is the most common library for FFT?
  3. What is FFT C++?
  4. Where is FFTW installed?

What is FFT library?

Introduction. FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine transforms or DCT/DST).

What is the most common library for FFT?

FFTW is the most popular FFT library. It has planty of features and it's often used as the reference point, but a number of other libraries has comparable or better performance.

What is FFT C++?

A fast Fourier transform (FFT) is an algorithm to compute the discrete Fourier transform (DFT) and its inverse. Fourier analysis converts time (or space) to frequency and vice versa; an FFT rapidly computes such transformations by factorizing the DFT matrix into a product of sparse (mostly zero) factors.

Where is FFTW installed?

6.1 FFTW MPI Installation

All of the FFTW MPI code is located in the mpi subdirectory of the FFTW package.

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