Robert Klemme wrote: > If you're not doing it for the fun of it: there are already vector and > matrix classes for Ruby plus libraries for manipulating them like > narray (see the RAA). I have seen and downloaded narray. I don't use it because it is usually more hassle to get stuff like that running and learn how to use it and then find out that it is not quite what you've been looking for after all than just DIY... I am sitting here in a Hotel room with a newbought, virgin Windoze notebook. I don't even want to try to estimate how long it will take me to get the compiler, utilities and whatnot up and running to even _start_ to compile narray. But if I can get no-hassle installable binaries somewhere, I'll be happy to give it a chance. Regards, Frank -- Posted via http://www.ruby-forum.com/.