topic Re: Matrix Division in Software Archive

Matrix Division

wiland — Wed, 21 Mar 2001 02:40:17 GMT

There is a MATMUL function in v.6.0 of the Fortran compiler that can be used to multiply two matrices. Is there any function that allows one to divide two matrices?

Re: Matrix Division

Steven_L_Intel1 — Wed, 21 Mar 2001 03:52:12 GMT

There is not a matrix division intrinsic. If you can find a matrix inversion routine, you can multiply by the inverse to perform division.

Steve

Re: Matrix Division

Intel_C_Intel — Tue, 15 May 2001 15:31:29 GMT

Hi

I have a similar problem. I want to be able to invert a matrix so in order to conduct matyrix division. Is there any command that can do matrix inversion in the compiler

thanks in advance

eugenio

Re: Matrix Division

Intel_C_Intel — Thu, 17 May 2001 08:20:28 GMT

There's no Fortran command to invert a matrix, but there's a subroutine included in IMSL that comes with the Professional edition of CVF. If you don't have it, there's free software available on the net that will do it. However, you should realize that matrix inversion can sometimes be tricky: some matrices to not have inverses.