Math-BigInt-GMPz Math::BigInt::GMPz is a replacement library for Math::BigInt::Calc. It can be used via: use Math::BigInt lib => 'GMPz'; If Math::GMPz is not installed, this will safely fall back to Calc, the default library of Math::BigInt. Please read the documentation under PERFORMANCE in Math::BigInt on when to use this module and when not. INSTALLATION To install this module, unpack the distribution file, and run the following commands: perl Makefile.PL make make test make install SUPPORT After installing, you can find documentation for this module with the perldoc command. perldoc Math::BigInt::GMPz You can also look for information at: GitHub https://github.com/pjacklam/p5-Math-BigInt-GMPz RT: CPAN's request tracker https://rt.cpan.org/Dist/Display.html?Name=Math-BigInt-GMPz MetaCPAN https://metacpan.org/release/Math-BigInt-GMPz CPAN Testers Matrix http://matrix.cpantesters.org/?dist=Math-BigInt-GMPz CPAN Ratings https://cpanratings.perl.org/dist/Math-BigInt-GMPz COPYRIGHT AND LICENCE Peter John Acklam pjacklam@gmail.com, 2016-. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.