> If you put matrix B over (or under) the Result matrix, the relationship between rows in A, columns in B, and elements in Result would be even more directly vi

> If you put matrix B over (or under) the Result matrix, the relationship between rows in A, columns in B, and elements in Result would be even more directly visualized. This is the way I multiply matrices on paper - it's a lot easier to keep track of the current row and column that way.