[1234]\left[\begin{array}{ll}1 & 2 \\3 & 4\end{array}\right][1324]
[133−2]\left[\begin{array}{rr}1 & 3 \\3 & -2\end{array}\right][133−2]
[−1−12−1]\left[\begin{array}{rr}-1 & -1 \\2 & -1\end{array}\right][−12−1−1]
[13−32]\left[\begin{array}{rr}1 & 3 \\-3 & 2\end{array}\right][1−332]
