TeX Quellcode:

\vec{a}^{\,T}\cdot\vec{b}=\dfrac{1}{3}\begin{pmatrix}0;\,-2;\,-7\end{pmatrix} \cdot \begin{pmatrix}11\cr0\cr3\end{pmatrix} = \dfrac{1}{3}\cdot 0\cdot 11+\dfrac{1}{3}\cdot \left(-2\right)\cdot 0+\dfrac{1}{3}\cdot \left(-7\right) \cdot 3 =-7