how can I multiply a 45-vector times a 45*45 matrix?

[jortorzor]

Excel only accepts small matrices (10*10) for multiplication and inversion.
How can I extend these capabilities to larger matrices (50*50)?

[Fredrik Wahlgren]

"jortorzor" <jortorzor@discussions.microsoft.com> wrote in message
news:8C4DCA65-88DF-4B3A-B8A2-1D5C15D71751@microsoft.com...
> Excel only accepts small matrices (10*10) for multiplication and
inversion.
> How can I extend these capabilities to larger matrices (50*50)?

Here's a link to a site withe a more capable version of MMULT, MMULT.EXT
http://xcell05.free.fr/

/Fredrik

[Jerry W. Lewis]

Excel will invert up to a 52*52 matrix, assuming that it is numerically
nonsingular. What is MDETERM() of your matrix?

Jerry

jortorzor wrote:

> Excel only accepts small matrices (10*10) for multiplication and inversion.
> How can I extend these capabilities to larger matrices (50*50)?