Problem:
Compute the (pseudo)inverse of
$\left(
\begin{array}{cc}
 -\frac{19}{10} & -\frac{31}{10} \\
 \frac{11}{5} & \frac{5}{2} \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{cc}
 \frac{250}{207} & \frac{310}{207} \\
 -\frac{220}{207} & -\frac{190}{207} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/pseudoinverse/48299.txt'}