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.IX Title "TT800 3pm"
.TH TT800 3pm 2024-03-07 "perl v5.38.2" "User Contributed Perl Documentation"
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.SH NAME
Math::Random::TT800 \- Matsumoto's TT800 Pseudorandom number generator
.SH DESCRIPTION
.IX Header "DESCRIPTION"
This perl extension module implements M. Matsumoto's twisted generalized
shift register generator called TT800 as described in his article
published in ACM Transactions on Modelling and Computer Simulation, 
Vol. 4, No. 3, 1994, pages 254\-266.
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\&        use Math::Random::TT800;
\&
\&        my $tt = new Math::Random::TT800;
\&
\&        $value = $tt\->next();
\&
\&        $ivalue = $tt\->next_int();
.Ve
.SH FUNCTIONS
.IX Header "FUNCTIONS"
.IP new 4
.IX Item "new"
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\&        my $tt = new Math::Random::TT800;
\&        my $tt = new Math::Random::TT800 @seeds;
.Ve
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Create a new TT800 object. Providing seeds is optional.
A TT800 takes 25 integers as seed which must not be all zero.
If less than 25 integers are supplied, the rest are taken from the
default seed.
.IP next 4
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.Vb 1
\&        $value = $tt\->next();
.Ve
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next returns the next pseudorandom number from the TT800 object as
a floating point value in the range [0,1).
.IP next_int 4
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.Vb 1
\&        $ivalue = $tt\->next_int();
.Ve
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next_int returns a integer value filled with 32 random bits.
.SH COPYRIGHT
.IX Header "COPYRIGHT"
This implementation is based on the C code by M. Matsumoto
<matumoto@math.keio.ac.jp> available from 
ftp://random.mat.sbg.ac.at/pub/data/tt800.c.
.PP
Converted to a perl extension module and enhancements to 
support multiple streams of pseudorandom numbers 
by Otmar Lendl <lendl@cosy.sbg.ac.at>.
.PP
Copyright (c) 1997 by Otmar Lendl (Perl and XS code). All rights
reserved. This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.