fftw: FFTW
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fftw: FFTW is a C subroutine library for computing the discrete Fourier
fftw: transform (DFT) in one or more dimensions, of arbitrary input size,
fftw: and of both real and complex data (as well as of even/odd data, i.e.
fftw: the discrete cosine/sine transforms or DCT/DST). We believe that
fftw: FFTW, which is free software, should become the FFT library of
fftw: choice for most applications.
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