Problem:
Find the projection of the first vector onto the second:
$\left(
\begin{array}{c}
 1 \\
 2 \\
 2 \\
 -\frac{7}{3} \\
\end{array}
\right)$,
$\left(
\begin{array}{c}
 -\frac{1}{3} \\
 -2 \\
 1 \\
 -\frac{8}{3} \\
\end{array}
\right)$.
Answer:
$\left\{-\frac{7}{66},-\frac{7}{11},\frac{7}{22},-\frac{28}{33}\right\}$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/vector_angles_and_projections/47980.txt'}