math::random::tt800(3pm) [debian man page]

TT800(3pm)						User Contributed Perl Documentation						TT800(3pm)

NAME

       Math::Random::TT800 - Matsumoto's TT800 Pseudorandom number generator

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.

SYNOPSIS

	       use Math::Random::TT800;

	       my $tt = new Math::Random::TT800;

	       $value = $tt->next();

	       $ivalue = $tt->next_int();

FUNCTIONS

       new
		   my $tt = new Math::Random::TT800;
		   my $tt = new Math::Random::TT800 @seeds;

	   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.

       next
		   $value = $tt->next();

	   next returns the next pseudorandom number from the TT800 object as a floating point value in the range [0,1).

       next_int
		   $ivalue = $tt->next_int();

	   next_int returns a integer value filled with 32 random bits.

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.

       Converted to a perl extension module and enhancements to support multiple streams of pseudorandom numbers by Otmar Lendl
       <lendl@cosy.sbg.ac.at>.

       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.

perl v5.14.2							    2002-10-23								TT800(3pm)

Math::Random::ISAAC::PP(3pm)				User Contributed Perl Documentation			      Math::Random::ISAAC::PP(3pm)

NAME

       Math::Random::ISAAC::PP - Pure Perl port of the ISAAC PRNG algorithm

VERSION

       version 1.003

SYNOPSIS

       This module implements the same interface as "Math::Random::ISAAC" and can be used as a drop-in replacement. However, it is recommended
       that you let the "Math::Random::ISAAC" module decide whether to use the PurePerl or XS version of this module, instead of choosing
       manually.

       Selecting the backend to use manually really only has two uses:

       o   If you are trying to avoid the small overhead incurred with dispatching method calls to the appropriate backend modules.

       o   If you are testing the module for performance and wish to explicitly decide which module you would like to use.

       Example code:

	 # With Math::Random::ISAAC
	 my $rng = Math::Random::ISAAC->new(time);
	 my $rand = $rng->rand();

	 # With Math::Random::ISAAC::PP
	 my $rng = Math::Random::ISAAC::PP->new(time);
	 my $rand = $rng->rand();

DESCRIPTION

       See Math::Random::ISAAC for the full description.

METHODS

   new
	 Math::Random::ISAAC::PP->new( @seeds )

       Implements the interface as specified in "Math::Random::ISAAC"

   rand
	 $rng->rand()

       Implements the interface as specified in "Math::Random::ISAAC"

   irand
	 $rng->irand()

       Implements the interface as specified in "Math::Random::ISAAC"

SEE ALSO

       Math::Random::ISAAC

BUGS

       Please report any bugs or feature requests on the bugtracker website http://rt.cpan.org/NoAuth/Bugs.html?Dist=Math-Random-ISAAC

       When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired
       feature.

AUTHOR

       Jonathan Yu <jawnsy@cpan.org>

COPYRIGHT AND LICENSE

       Legally speaking, this package and its contents are:

	 Copyright (c) 2011 by Jonathan Yu <jawnsy@cpan.org>.

       But this is really just a legal technicality that allows the author to offer this package under the public domain and also a variety of
       licensing options. For all intents and purposes, this is public domain software, which means you can do whatever you want with it.

       The software is provided "AS IS", without warranty of any kind, express or implied, including but not limited to the warranties of
       merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any
       claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the
       software or the use or other dealings in the software.

perl v5.10.1							    2011-02-13					      Math::Random::ISAAC::PP(3pm)