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NAME Math::Random::MT - The Mersenne Twister PRNG SYNOPSIS use Math::Random::MT; $gen = Math::Random::MT->new($seed); # OR... $gen = Math::Random::MT->new(@seed); print $gen->rand(3); OR use Math::Random::MT qw(srand rand); # now srand and rand behave as usual. DESCRIPTION The Mersenne Twister is a pseudorandom number generator developed by Makoto Matsumoto and Takuji Nishimura. It is described in their paper at <URL:http://www.math.keio.ac.jp/~nisimura/random/doc/mt.ps>. This module implements two interfaces, as described in the synopsis above. It defines the following functions. Functions new($seed) Creates a new generator seeded with an unsigned 32-bit integer. new(@seed) Creates a new generator seeded with an array of (up to 624) unsigned 32-bit integers. rand($num) Behaves exactly like Perl's builtin rand(), returning a number uniformly distributed in [0, $num) ($num defaults to 1). srand($seed) This is an alternative interface to the module's functionality. It behaves just like Perl's builtin srand(). If you use this interface, it is strongly recommended that you call *srand()* explicitly, rather than relying on *rand()* to call it the first time it is used. SEE ALSO <URL:http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html> Math::TrulyRandom ACKNOWLEDGEMENTS Sean M. Burke For giving me the idea to write this module. Philip Newton For several useful patches. AUTHOR Abhijit Menon-Sen <firstname.lastname@example.org> Copyright 2001 Abhijit Menon-Sen. All rights reserved. Based on the C implementation of MT19937 Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura This software is distributed under a (three-clause) BSD-style license. See the LICENSE file in the distribution for details.