Math::Systems - Perl extension solving systems of Equations. INSTALLATION To install this module type the following: perl Makefile.PL make make test make install DEPENDENCIES This module requires these other modules and libraries: Math::Matrix Any Modules required by above SYNOPSIS use Math::Systems; \$a = Math::Systems->new( [1, 2, 3], [1, -2 , -3], ) @solutions = \$a->solve; DESCRIPTION Solves systems of equations using Krammer's rule. If you look at the Solve method you'll understand Krammer's rule (I think?) Basically a system of equations is more than one equation/variable your solving. This module REQUIRES you have 1 equation per each coefficent. Try not to use too many equations. 3 equations is probably the limit of reason. But if you don't mind long compilation time, go for as many as you want. This module uses (and ovbiously requires you have) Math::Matrix to do all the Matrix work. Please take a look at that module for details do you can see exactly what is happening. There are no arguements in this module except for the Matrix which will be brought to Math::Matrix. Also, keep in mind, there are no error messenging. I will of course change that someday, but for now I'm satisfied that I can solve systems of equations. Don't allow error-prone things to be written in. But, there are of course times when you won't be able to figure out the stupid answer and this module will absolutly act like it did a great job, and at the same time, fail. So, keep that in mind. BETA means something. It's not good. METHODS new Pass the Equation coeffients/answers to this. The same way you do it in Math::Matrix. This is the constructor. If the equations are 2x + 3y = 10 and 3x + 2y = 10 then Math::Systems->new( [2, 3, 10], [3, 2, 10] ); solve Solves it. Returns list of solutions in order. Take no arguements. Ever. AUTHOR Will Gunther williamgunther@aol.com SEE ALSO the perl manpage. the Math::Matrix manpage COPYRIGHT AND LICENCE Copyright (C) 2004 William Gunther This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.