Problem:
Find the least squares vector given the matrix
$\left(
\begin{array}{cc}
 -3 & 2 \\
 2 & 0 \\
 -2 & -2 \\
 0 & 3 \\
\end{array}
\right)$ and the vector
$\left(
\begin{array}{c}
 0.77 \\
 -1.25 \\
 0.51 \\
 2.09 \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{c}
 -0.3 \\
 0.364 \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/least_squares/2668.txt'}