sci.op-research

Hello,

I am looking for a program or library for convex analysis.

For an m x n matrix M, I looking for v which satisfies Mv = 0. There
exists a convex set of vectors all non-negative linear combinations of
which satisfy the equation above, so-called extreme rays. I am looking
for a program to get extreme rays out of a given matrix M.

I look forward to hearing from you. Any comment will be welcomed.
Thank you very much.