套件： libmath-random-tt800-perl (1.01-3build6)

Perl module implementing the TT800 algorithm

Math::Random::TT800 provides an implementation of Makoto Matsumoto and Takuji Nishimura's pseudorandom number generator (PRNG) algorithm called TT800. It is similar to some other fantastic PRNG algorithms such as the Mersenne Twister (see libmath-random-mt-perl) and ISAAC (see libmath-random-isaac-perl). This particular implementation is particularly notable because it has no external dependencies aside from Perl itself.

The algorithm itself is described in Matsumoto's article published in ACM Transactions on Modelling and Computer Simulation, Volume 4, Issue 3, 1994, pages 254-266.

This algorithm is similar to the Mersenne Twister algorithm but uses a smaller array to hold state information (25 elements compared to MT's 624). Consequently, the period is much smaller - 2^800-1 versus MT's 2^19937-1. The period of ISAAC is 2^8295 values on average.