Function: matsolve
Section: linear_algebra
C-Name: gauss
Prototype: GG
Help: matsolve(M,B): Gaussian solution of MX=B (M matrix, B column vector).
Doc: $M$ being an invertible matrix and $B$ a column
 vector, finds the solution $X$ of $MX=B$, using Gaussian elimination. This
 has the same effect as, but is a bit faster, than $M^{-1}*B$.
