Problem:
Find the $\ell_1$ norm of the following vector:
$\left(
\begin{array}{c}
 \frac{27}{4} \\
 3 \\
 -\frac{19}{4} \\
 -4 \\
 \frac{31}{4} \\
 \frac{21}{4} \\
 \frac{13}{4} \\
 -1 \\
\end{array}
\right)$.
Answer:
$\frac{143}{4}$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/lp_norm/44352.txt'}