TeX Quellcode:

\begin{matrix}4\vec{a} + 9\vec{b} - 3\vec{c} &=& 4\begin{pmatrix}-16\cr-50\cr-5\end{pmatrix} &+& 9\begin{pmatrix}1\cr-46\cr-6\end{pmatrix} &-& 3\begin{pmatrix}-27\cr33\cr40\end{pmatrix} \cr \cr &=& \begin{pmatrix}4\cdot \left(-16\right)\cr4\cdot \left(-50\right)\cr4\cdot \left(-5\right)\end{pmatrix} &+& \begin{pmatrix}9\cdot 1\cr9\cdot \left(-46\right)\cr9\cdot \left(-6\right)\end{pmatrix} &+& \begin{pmatrix}-3\cdot \left(-27\right)\cr-3\cdot 33\cr-3\cdot 40 \end{pmatrix} \cr \cr &=& \begin{pmatrix}-64\cr-200\cr-20\end{pmatrix} &+& \begin{pmatrix}9\cr-414\cr-54\end{pmatrix} &+& \begin{pmatrix}81\cr-99\cr-120\end{pmatrix} \cr \cr &=& \begin{pmatrix}26\cr-713\cr-194\end{pmatrix} \end{matrix}