Initial program 59.5
\[-\frac{1}{\frac{\pi}{4}} \cdot \log \left(\frac{e^{\frac{\pi}{4} \cdot f} + e^{-\frac{\pi}{4} \cdot f}}{e^{\frac{\pi}{4} \cdot f} - e^{-\frac{\pi}{4} \cdot f}}\right)\]
Taylor expanded around 0 2.4
\[\leadsto -\frac{1}{\frac{\pi}{4}} \cdot \color{blue}{\left(\left(\log \left(\frac{4}{\pi}\right) + \frac{1}{48} \cdot \left({f}^{2} \cdot {\pi}^{2}\right)\right) - \left(\frac{7}{23040} \cdot \left({f}^{4} \cdot {\pi}^{4}\right) + \log f\right)\right)}\]
- Using strategy
rm Applied associate-*l/2.4
\[\leadsto -\color{blue}{\frac{1 \cdot \left(\left(\log \left(\frac{4}{\pi}\right) + \frac{1}{48} \cdot \left({f}^{2} \cdot {\pi}^{2}\right)\right) - \left(\frac{7}{23040} \cdot \left({f}^{4} \cdot {\pi}^{4}\right) + \log f\right)\right)}{\frac{\pi}{4}}}\]
Simplified2.4
\[\leadsto -\frac{\color{blue}{\left(\left(\left(f \cdot \pi\right) \cdot \left(f \cdot \pi\right)\right) \cdot \frac{1}{48} - \log f\right) - \left(\left({f}^{4} \cdot \frac{7}{23040}\right) \cdot {\pi}^{4} - \log \left(\frac{4}{\pi}\right)\right)}}{\frac{\pi}{4}}\]
Final simplification2.4
\[\leadsto -\frac{\left(\left(\left(f \cdot \pi\right) \cdot \left(f \cdot \pi\right)\right) \cdot \frac{1}{48} - \log f\right) - \left(\left({f}^{4} \cdot \frac{7}{23040}\right) \cdot {\pi}^{4} - \log \left(\frac{4}{\pi}\right)\right)}{\frac{\pi}{4}}\]
