hi matt...

to perform G-J elimination using an application is actually computationally
expensive...

there are better methods for what you want to achieve... i am currently at
work and i do not have any of my references with me, but if you contact me
via nik@isysglobal.com i will provide you with the solution you are looking
for.

cheers
nik
"Matt T." <tamayomz@hotmail.com> wrote:
>
>For a Science Fair I am trying to write a program that will a system (equation)
>of 3 matrices of which only one is a square matrix:
>
>[4 x 5] [5 x 4] = [4 x 4] Matrix
>Inverses cannot be used. There is no inverse of non square matrices.
>I may just settle for square matrices. Does anyone know a short algortihm
>to calculate the determinant of a matrix? The inverse would be nice but
>if it just the determinant that is fine.
>If anyone know of Gauss[-Jordan] elimination algortihms for systems of equations
>please say something. I would really appreciate.
>
>Thanks,
>Really Big Headache