Next: random generators marsaglia, Up: random generators [Index]

The Mersenne twister is a pseudorandom number generator developed in 1997 by Makoto Matsumoto and Takuji Nishimura:

Matsumoto Makoto and Nishimura Takuji. “Mersenne twister: a 623–dimensionally equidistributed uniform pseudo–random number generator”. 1998. ACM Transactions on Modeling and Computer Simulation.

it provides for fast generation of very high–quality pseudorandom
numbers, having been designed specifically to rectify many of the flaws
found in older algorithms. Its name derives from the fact that period
length is chosen to be a Mersenne prime^{15}.

The following bindings are exported by the ```
(vicare crypto
randomisations mersenne)
```

library.

- Function:
**make-random-source/mersenne** Build and return a new randomness source using the Mersenne generator.

The state returned by

`random-source-state-ref`

is a Scheme vector of length 626, whose first value is the symbol`random-source-state/mersenne`

. The other values are integers representable with*32*bits.The

`random-source-seed!`

function for this generator, must be applied tot a numbers maker returning integers representable with*32*bits.

`(vicare crypto randomisations mersenne)`

initialises the
generator drawing *32* bits integer numbers from a specifically
built MRG32k3a randomness source, which in turn is initialised with the
default `(vicare crypto randomisations)`

seeds. L’Ecuyer’s MRG32k3a generator

Wikipedia contributors, “Mersenne twister”, Wikipedia, The Free Encyclopedia, http://en.wikipedia.org/w/index.php?title=Mersenne_twister&oldid=299648661 (accessed July 1, 2009).