In addition to Bob's contribution, you may want to take a look at the
following link, where it explains how the multiplication takes place...

http://www.purplemath.com/modules/mtrxmult.htm

Hope this helps!

In article ,
TC8 wrote:

Can anybody help with the MMULT worksheet function please?

Excel's help function is not very helpful for this.

To take the 1st example in Excel's help on MMULT, the result is 2. I
cannot figure out which way or by which method the columns and the rows
are multiplied.

Any help is greatly appreciated.

Thank you.
Regards