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sml-fft's Introduction

A Fast Fourier Transform implementation in Standard ML.

  https://hg.sr.ht/~cannam/sml-fft

Intended to be reasonably fast rather than beautiful -- it's largely
imperative using lots of mutable state.

Includes complex-complex and real-complex FFTs. Supports power-of-two
sizes only. No dependencies apart from the Basis library.

The complex-complex FFT is modelled on Nayuki's multi-language version
at http://www.nayuki.io/page/free-small-fft-in-multiple-languages.
The real-complex wrapper is modelled on KissFFT by Mark Borgerding.

Chris Cannam, [email protected].
Free BSD-style licence, see COPYING for details.

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