From: "M. Edward (Ed) Borasky" Date: 2006-01-03T11:06:19+09:00 Subject: Re: discrete event simulation in ruby? Yeah ... I saw that. There's a lot of really great software written in Java, but I tend to use it as is rather than trying to integrate it into another language. I don't know enough about DES to know which package is more comprehensive. I prefer small easily-understood packages in general over comprehensive ones ... the YAGNI principle. Along similar lines, I've been digging into the "mathn" library and its dependencies, "matrix", "complex" and "rational". It's quite interesting, although I suspect it's going to be way too slow for "industrial-sized" systems analysis problems. "BigMath" is another interesting piece of software -- it includes a rather general Newton solver for nonlinear equations. More opportunities for interfacing Ruby to external libraries -- I suppose I should go learn SWIG. :) Paul Sanchez wrote: >There's a fairly comprehensive LGPL'ed library written in Java called >SIMKit . It's based on extensions >to Lee Schruben's "event graph" methodology. The author, Arnie Buss, >developed a nice design framework which integrates object-oriented >design with a listener pattern to create a truly reusable component >architecture for model components. > >--paul > > -- M. Edward (Ed) Borasky http://linuxcapacityplanning.com