Math::GSL::PowInt - Integer Power functions
use Math::GSL::PowInt qw /gsl_pow_2 gsl_pow_4 gsl_pow_int/; print '2**4 = ' . gsl_pow_2(4) . "\n"; print '4**7 = ' . gsl_pow_4(7) . "\n"; print '17**5 = ' . gsl_pow_int(17,5) . "\n";
This module implements the GSL Integer Power functions, which allow one to quickly compute a given integer raised to any real number. It contains gsl_pow_2 to gsl_pow_9 and gsl_pow_int. If you need a power higher than 9, you can use gsl_pow_int, which takes a base as the first argument and power being raised to as the second argument.
You can also write
use Math::GSL::PowInt qw/:all/;
to use all avaible functions of the module.
This module is used to speed up arithmetic operations. The underlying code decomposes the multiplication in the most efficient way. Since it is implemented in XS (via SWIG), it should lend a large performance increase over the Perl builtin exponentiation operator, '**' .
Would someone like to submit some benchmarks?
Jonathan Leto <jonathan@leto.net> and Thierry Moisan <thierry.moisan@gmail.com>
Copyright (C) 2008 Jonathan Leto and Thierry Moisan
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install Math::GSL, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Math::GSL
CPAN shell
perl -MCPAN -e shell install Math::GSL
For more information on module installation, please visit the detailed CPAN module installation guide.