Problem:
Compute the (pseudo)inverse of
$\left(
\begin{array}{cc}
 \frac{7}{3} & \frac{11}{3} \\
 -1 & -\frac{13}{3} \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{cc}
 \frac{39}{58} & \frac{33}{58} \\
 -\frac{9}{58} & -\frac{21}{58} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/pseudoinverse/31272.txt'}