Well, specifically, I was looking at things like eigenvalue calculations, triangularization, etc. There's also things lacking like Intergration, Differentition, etc. that aren't necessarily matrix methods, but are important mathematical concepts.

One of the concerns that I had with the possibility of back-ending the module with standard math libraries was that the way the data was stored in a Matrix/Vector class would be such that *if* one was using the math library backend, the data would be optimized to avoid having to do any conversion from a data structure stored in perl to what is needed by the external library. This would help speed up execution by avoiding this step when it's needed.

-----------------------------------------------------
Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain
It's not what you know, but knowing how to find it if you don't know that's important