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The Mersenne Twister is a uniform pseudorandom number generator (for both real and integers), which has been developed by Makoto Matsumoto and Takuji Nishimura during 1996-1997.
The generated numbers have a period of 219937-1. They are uniformly distributed over the interval [0, 1] in the real case and over the interval [0, 231-1] in the integer case.
We refer to the Mersenne Twister Homepage for details and implementations in other languages.
This implementation in Clean is a rewrite of a C program by T. Nishimura which can be found on-line or e. g. in the paper
Mersenne Twister: A 623-dimensionally equidistributed uniform pseudorandom number generator
by M. Matsumoto and T. Nishimura in ACM Transactions on Modeling and Computer Simulation,
vol. 8, no. 1, January 1998, pp. 3-30. (PostScript)
Comments, remarks and suggestions are very welcome and should be made to Thorsten
Zoerner (zoerner@cs.kun.nl).
| function | name | types/remarks |
| getRandReal | real pseudorandom number generator | Int -> [Real] Input: Any nonzero integer as a seed value. Returns an infinite list of real numbers, uniformly distributed over the interval [0, 1]. |
| getRandInt | integer pseudorandom number generator | Int -> [Int] Input: Any nonzero integer as a seed value. Returns an infinite list of integer numbers, uniformly distributed over the interval [0, 231-1]. |