From: Vincent Fourmond <vincent.fourmond@9online.fr>
Date: 2006-12-21T22:24:26+09:00
Subject: Re: Matrix class for ruby?

seepee wrote:
> Does anyone know of a functional Matrix math class for ruby that could
> multiply, add and substract 3x2 or larger matrices.
> 
> The matrix.rb that is in Ruby API cannot multiply anything larger than 2x2
> matrices, which makes it useless for 2D or 3D graphics (for instance).

  OK, I understand now: you want graphical transformations. They are
*not* real matrices, but the combination of a real matrix and a
translation vector. So you need special rules to combine them (although
for additions and substractions, standard matrix multiplications should
work). I don't know any package doing that in Ruby -- but if you
consider writing one, that would definitely be an interesting addition.

  Cheers !

	Vince

-- 
Vincent Fourmond, PhD student
http://vincent.fourmond.neuf.fr/