Question

Does anyone have a trick for multiplying matrices?

Answer 1

\[a _{ij}\times b _{jk}=c _{ik}\]
\[a_{ij}=jth~ element~ in~ ith~ row~of~A\]
\[b_{jk}=kth~element~in~jth ~row~of~B\]

Answer 2

Thank you