Christopher
New member
Let A be an m*p matrix whose columns each sum to s, and B be p*n matrix whose columns each sum to t. Show using summation notation that the sum of each of the columns of matrix A*B is st.
This is an obvious result, but i am really strugling to prove it using the summation notation.
This is an obvious result, but i am really strugling to prove it using the summation notation.