Matrix Multiplication

[CollectiveRocker]

Is there an easy way to do 3 X 3 Matrix Multiplication?

[mathman]

The ordinary way seems easy enough. What is your problem?

[Dooga Blackrazor]

4 3 2 x 2 4 7
2 3 4 x 3 4 8
5 2 5 x 4 3 9

To find row 1 column one:

(4x2) + (3x3) + (2x4)

To find row 3 column 3:

(5x7) + (2x8) + (5x9)

I think those examples are correct. If you can't figure out how to do it from there just post again.