TeX Quellcode:

5 e^{i \, \frac{\pi}{10}} \; : \; \left( 12 e^{i \, \frac{\pi}{8}} \right) \; = \; \dfrac{5}{12} \, e^{i \, \left(\frac{\pi}{10}-\frac{\pi}{8}\right)} \; = \; \dfrac{5}{12} \, e^{i \, \left(-\frac{1\pi} {40}\right) } \; = \; \dfrac{5}{12} \, e^{i \, \frac{79\pi} {40} }