TeX Quellcode:

\begin{matrix} \left|\dfrac{3}{4} \begin{pmatrix}\frac{8}{3}\cr32\cr16\end{pmatrix}\right| &=& \left|\begin{pmatrix}2\cr24\cr12\end{pmatrix}\right| \cr\cr &=& \sqrt{{2}^2+{24}^2+{12}^2 } \cr &=& \sqrt{724} &\approx & 26{,}91 \end{matrix}