Zdroj TeX:

\small M= \left(\begin{matrix} -9 & 0 & 0 & 0 \\ 4 & 7 & -2 & 1 \\ 1 & -14 & 4 & -2 \\ -5 & 7 & -2 & 1 \end{matrix}\right)∼ \left(\begin{matrix} -9 & 0 & 0 & 0 \\ 0 & 7 & -2 & 1 \\ 0 & -14 & 4 & -2 \\ 0 & 7 & -2 & 1 \end{matrix}\right)∼ \left(\begin{matrix} -9 & 0 & 0 & 0 \\ 0 & 7 & -2 & 1 \\ 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 0 \end{matrix}\right)