It's a library for doing evolutionary computation in Perl. Algorithm::Evolutionary was formerly called OPEAL, which is an acronym for Obvious Pearl Evolutionary Algorithm Library. The design principles of Algorithm::Evolutionary are: * It should be easy to program any kind of evolutionary algorithm; all chromosome representations and operators are possible. * An XML dialect called EvoSpec is used as a language for description of algorithms and for representation of the state of an algorithm. This could make Algorithm::Evolutionary interoperable with other EA libraries, such as EO or JEO. WWW: https://metacpan.org/release/Algorithm-Evolutionary WWW: http://opeal.sourceforge.net/