TeX Quellcode:

\begin{array}{rclll}\dfrac{dz}{dt} &=& 3 \cr dt &=& \dfrac{dz}{3} \cr\cr\cr \displaystyle\int (3t+1)^{\frac{1}{2}} \, dt &=& \displaystyle\int z^{\frac{1}{2}} \dfrac{dz}{3} \cr\cr &=& \dfrac{1}{3} \displaystyle\int z^{\frac{1}{2}}\, dz \cr\cr &=& \dfrac{1}{3} \cdot \dfrac{2}{3}z^{\frac{3}{2}}+c \end{array}