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RE: [Help-gsl] Matrix multiplcation

From: Martell, Larry
Subject: RE: [Help-gsl] Matrix multiplcation
Date: Mon, 21 Mar 2005 09:40:47 -0700

There is a matrix multiply function in oper_source.c, but that
function does a straight element by element multiply, e.g.:

         c(n,p) = a(n,p) * b(n,p)

For a true matrix multiply, i.e.:

         c(n,p) = a(n,1) * b(1,p) + a(n,2) * b(2,p) + ... + a(n,m) * b(m,p)

you need  to look at the basic linear algebra functions (BLAS).
The matrix - matrix routines are BLAS Level 3. Ssee the GSL CBLAS 
example in the documentation.




From: address@hidden on behalf of charmi Mohamed Ali
Sent: Mon 3/21/2005 9:29 AM
To: address@hidden
Subject: [Help-gsl] Matrix multiplcation

I'm a GSL Beginner.
I can't find a function to muliplicate 2 matrix!!

CHARMI Mohamed Ali
Student in Computer Sc. & Image processing
ENSI, University of Manouba
Phone: +21622716308, +33625449442

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