TeX Quellcode:
\begin{array}{rclll} \displaystyle\int \limits_0^{\frac{\pi}{2}} \cos\left(3x-\dfrac{{\pi}}{8}\right) \, dx &=& \left[\dfrac{1}{3}\sin\left(3x-\dfrac{\pi}{8}\right)\right]_0^\frac{\pi}{2} \cr\cr &=& \dfrac{\sin\left(3 \cdot \frac{\pi}{2}-\frac{{\pi}}{8}\right)}{3}-\dfrac{\sin\left(-\frac{{\pi}}{8}\right)}{3} \cr\cr &\approx& -0{,}18\end{array}