Problem:
Find the dot product of the following two vectors:
$\left(
\begin{array}{c}
 -5 \\
 9 \\
 1 \\
 -6 \\
 4 \\
 -2 \\
 -4 \\
\end{array}
\right)$ and
$\left(
\begin{array}{c}
 -2 \\
 1 \\
 -3 \\
 -9 \\
 -4 \\
 -4 \\
 0 \\
\end{array}
\right)$.
Answer:
$62$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/dot_product/13670.txt'}