I was never a fan of special cases in Math. Especially when it's not a special case. Saying that an element in the product matrix is a product of a row taken fr

I was never a fan of special cases in Math. Especially when it's not a special case. Saying that an element in the product matrix is a product of a row taken from one matrix and a column from another does not require matrices to be square and fits all possible applications of matrix multiplication already.