multiplying matrices

[Clifford]

Did I multiply these correctly?

\(\displaystyle \[
\begin{array}
0 & 0 & 2 & 2 \\
0 & 0 & 1 & 0 \\
2 & 1 & 0 & 1 \\
2 & 0 & 1 & 0 \\

\end{array} \;\;\;\;\;\; \times \;\;\;\;\;\
\begin{array}
0 & 0 & 2 & 2 \\
0 & 0 & 1 & 0 \\
2 & 1 & 0 & 1 \\
2 & 0 & 1 & 0 \\

\end{array}
= \;

\begin{array}
8 & 2 & 2 & 2 \\
2 & 1 & 0 & 1 \\
2 & 0 & 6 & 4 \\
2 & 1 & 4 & 5 \\
\end{array}
\]\)

 

[skeeter]

yes

online matrix calculator

 

[merlin2007]

Correct

Yes, you correctly squared the matrix. I would offer an easy way to do it, but I'm not sure what method you used to begin with. =) =P

 

[Clifford]

the old fashion row by column. What is the easy method I would like to know Also thanks for the online calculator.