TeX Quellcode:

f(z)= 2 \cdot \vert z+4 \vert=\left\{\begin{array}{rllll}2(z+4) &=& 2z+8 & \text{ für } & z\geq-4 \cr2\left(-(z+4)\right) &=& -2z-8 & \text{ für } & z < -4\end{array} \right.