Problem:
Compute the (pseudo)inverse of
$\left(
\begin{array}{ccc}
 -\frac{3}{10} & \frac{19}{10} & \frac{19}{10} \\
 0 & -\frac{7}{10} & \frac{17}{5} \\
 \frac{1}{2} & 4 & 0 \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{ccc}
 -\frac{544}{319} & \frac{304}{319} & \frac{1558}{1595} \\
 \frac{68}{319} & -\frac{38}{319} & \frac{204}{1595} \\
 \frac{14}{319} & \frac{86}{319} & \frac{42}{1595} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/pseudoinverse/19058.txt'}