Problem:
Multiply
$\left(
\begin{array}{c}
 -\frac{3}{10} \\
 \frac{17}{10} \\
 -\frac{23}{10} \\
 -1 \\
\end{array}
\right)$ and
$\left(
\begin{array}{c}
 \frac{13}{10} \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{c}
 -\frac{39}{100} \\
 \frac{221}{100} \\
 -\frac{299}{100} \\
 -\frac{13}{10} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/multiply/27838.txt'}