Problem:
Find the least squares vector given the matrix
$\left(
\begin{array}{cccc}
 1 & -2 & 2 & 0 \\
 -2 & 1 & 1 & 2 \\
 -1 & -2 & -3 & -1 \\
 2 & 3 & 3 & 0 \\
 3 & -3 & 0 & 0 \\
\end{array}
\right)$ and the vector
$\left(
\begin{array}{c}
 -0.58 \\
 -0.12 \\
 -0.06 \\
 1.11 \\
 -0.33 \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{c}
 0.167 \\
 0.29 \\
 -0.107 \\
 -0.061 \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/least_squares/31627.txt'}