mersenne-random-pure64

Generate high quality pseudorandom numbers purely using a Mersenne Twister

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

LTS Haskell 24.17:	0.2.2.0@rev:1
Stackage Nightly 2025-10-31:	0.2.2.0@rev:1
Latest on Hackage:	0.2.2.0@rev:1

See all snapshots mersenne-random-pure64 appears in

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

System
- System.Random
  - System.Random.Mersenne
    - System.Random.Mersenne.Pure64

Depends on 3 packages(full list with versions):

base, random, time

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.