A binding to the fftw library for one-dimensional vectors.

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BSD-3-Clause licensed by Judah Jacobson
Maintained by Ben Gamari

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This package provides bindings to the fftw library for one-dimensional vectors. It provides both high-level functions and more low-level manipulation of fftw plans.

We provide three different modules which wrap fftw's operations:

  • Numeric.FFT.Vector.Unnormalized contains the raw transforms;

  • Numeric.FFT.Vector.Invertible scales the backwards transforms to be true inverses;

  • Numeric.FFT.Vector.Unitary additionally scales all transforms to preserve the L2 (sum-of-squares) norm of the input.