Problem:
Multiply
$\left(
\begin{array}{c}
 -1 \\
 1 \\
 -3 \\
 -2 \\
 2 \\
\end{array}
\right)$ and
$\left(
\begin{array}{ccccc}
 1 & -3 & -1 & 0 & 0 \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{ccccc}
 -1 & 3 & 1 & 0 & 0 \\
 1 & -3 & -1 & 0 & 0 \\
 -3 & 9 & 3 & 0 & 0 \\
 -2 & 6 & 2 & 0 & 0 \\
 2 & -6 & -2 & 0 & 0 \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/multiply/46695.txt'}