The arb-fft package

[Tags:bsd3, library, program, test]

This library provides a pure Haskell complex-to-complex Fast Fourier Transform implementation for arbitrary length input vectors, using a mixed-radix decimation-in-time algorithm with specialised straight-line code for a range of base transform sizes, Rader's algorithm for prime length base transforms, and an empirical optimisation scheme to select a good problem decomposition.

This package is probably primarily of pedagogical interest (FFTW is about five times faster for most input sizes). There is a long series of blog articles describing the development of the package, indexed at

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Change log CHANGELOG.markdown
Dependencies arb-fft, base (>=4.6 && <5), containers (>= && <0.6), criterion (==1.1.*), directory (>= && <1.3), filepath (>= && <1.5), primitive (>= && <0.7), transformers (>= && <0.5), vector (>= && <0.12) [details]
License BSD3
Copyright Copyright (2013) Ian Ross
Author Ian Ross
Category Math
Home page
Source repository head: git clone
Uploaded Sun Apr 24 20:25:12 UTC 2016 by IanRoss
Distributions NixOS:
Downloads 1155 total (14 in the last 30 days)
0 []
Status Docs not available [build log]
All reported builds failed as of 2016-10-26 [all 3 reports]
Hackage Matrix CI


  • Numeric
    • Numeric.FFT


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Readme for arb-fft

Readme for arb-fft-


Pure Haskell arbitrary length FFT library