Problem:
Compute the (pseudo)inverse of
$\left(
\begin{array}{ccc}
 5 & 3 & 3 \\
 1 & 5 & -3 \\
 4 & 3 & -2 \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{ccc}
 \frac{1}{86} & -\frac{15}{86} & \frac{12}{43} \\
 \frac{5}{43} & \frac{11}{43} & -\frac{9}{43} \\
 \frac{17}{86} & \frac{3}{86} & -\frac{11}{43} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/pseudoinverse/14484.txt'}