TeX Quellcode:
\begin{array}{rclll} \dfrac{dt}{dy} &=& 2 \cr dy &=& \dfrac{dt}{2} \cr\cr\cr \displaystyle\int4e^{2y} \, dy &=& \displaystyle\int 4e^t\frac{dt}{2} \cr\cr &=& \dfrac{4}{2}\displaystyle\int e^t \, dt \cr\cr &=& 2e^t+c \end{array}