TeX Quellcode:

\vec{a}-\vec{b}=\begin{pmatrix}a_1\cr a_2\cr a_3\end{pmatrix}-\begin{pmatrix}b_1\cr b_2\cr b_3\end{pmatrix}=\begin{pmatrix}a_1-b_1\cr a_2-b_2\cr a_3-b_3\end{pmatrix}