mersenne-random-pure64

Generate high quality pseudorandom numbers purely using a Mersenne Twister

http://code.haskell.org/~dons/code/mersenne-random-pure64/

LTS Haskell 24.1:0.2.2.0@rev:1
Stackage Nightly 2025-07-24:0.2.2.0@rev:1
Latest on Hackage:0.2.2.0@rev:1

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BSD-3-Clause licensed by Don Stewart
Maintained by Don Stewart
This version can be pinned in stack with:mersenne-random-pure64-0.2.2.0@sha256:853f225100e5d8edbedcd21a88590f5b02a4e225f9129a474ac074417e07b85f,2474

Module documentation for 0.2.2.0

Depends on 3 packages(full list with versions):
base, random, time
Used by 1 package in nightly-2019-02-04(full list with versions):
random-source

The Mersenne twister is a pseudorandom number generator developed by Makoto Matsumoto and Takuji Nishimura that is based on a matrix linear recurrence over a finite binary field. It provides for fast generation of very high quality pseudorandom numbers. The source for the C code can be found here:

http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt64.html

This library provides a purely functional binding to the 64 bit classic mersenne twister, along with instances of RandomGen, so the generator can be used with System.Random. The generator should typically be a few times faster than the default StdGen (but a tad slower than the impure 'mersenne-random' library based on SIMD instructions and destructive state updates.