On Thu, 21 Dec 2006 09:12:47 +0200, 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).SP

Problem:

go to terminal, and type “irb” or “irb1.8”

require ‘matrix’ #or require >rubylibrarypath/matrix.rb

p Matrix[ [25, 93, 33], [0, -1, 66] ] * Matrix[ [1, 53, 33], [1, -21, 77]

ExceptionForMatrix::ErrDimensionMismatch: Matrix dimension mismatch

from /usr/lib/ruby/1.8/matrix.rb:466:in `*’ from (irb):4

??