>I try to multiply two matrices my head ends up overheating How do you go about multiplying two matrices? Different people do it differently. It can be easy or

>I try to multiply two matrices my head ends up overheating How do you go about multiplying two matrices? Different people do it differently. It can be easy or hard depending on how you do it.. When you multiply, do you write your matrices in such a way that the bottom left corner of your second matrix sits near the upper right corner of the first matrix? (i.e: b31 is above and slightly to the right of a13) Here's what I mean: https://upload.wikimedia.org/wikipedia/commons/e/eb/Matrix_multiplication_diagram_2.svg https://upload.wikimedia.org/wikipedia/commons/e/eb/Matrix_m... If the resulting matrix is R with elements rij, then r12 (yellow and red) is equal to a11.b12 + a12.b22. You can multiply matrices really fast just by popping the second one into that position. It avoids clutter and confusion. You'll probably never make mistakes again.