Chapter 6.3, Problem 19P

For each of the matrices in Problems $18$ through $23$, use a computer to assist in finding a fundamental set of solutions to the system $\text{x}\text{'}=\text{Ax}$.

$\text{A=}\left(\begin{array}{cccc}2& 2& 0& -1\\ 2& -1& 0& 2\\ 0& 0& 3& 0\\ -1& 2& 0& 2\end{array}\right)$