- Started with
\[\frac{x.im \cdot y.re - x.re \cdot y.im}{y.re \cdot y.re + y.im \cdot y.im}\]
20.9
- Using strategy
rm 20.9
- Applied add-exp-log to get
\[\frac{x.im \cdot y.re - x.re \cdot y.im}{\color{red}{y.re \cdot y.re + y.im \cdot y.im}} \leadsto \frac{x.im \cdot y.re - x.re \cdot y.im}{\color{blue}{e^{\log \left(y.re \cdot y.re + y.im \cdot y.im\right)}}}\]
20.9
- Applied add-exp-log to get
\[\frac{\color{red}{x.im \cdot y.re - x.re \cdot y.im}}{e^{\log \left(y.re \cdot y.re + y.im \cdot y.im\right)}} \leadsto \frac{\color{blue}{e^{\log \left(x.im \cdot y.re - x.re \cdot y.im\right)}}}{e^{\log \left(y.re \cdot y.re + y.im \cdot y.im\right)}}\]
25.9
- Applied div-exp to get
\[\color{red}{\frac{e^{\log \left(x.im \cdot y.re - x.re \cdot y.im\right)}}{e^{\log \left(y.re \cdot y.re + y.im \cdot y.im\right)}}} \leadsto \color{blue}{e^{\log \left(x.im \cdot y.re - x.re \cdot y.im\right) - \log \left(y.re \cdot y.re + y.im \cdot y.im\right)}}\]
25.9
- Applied taylor to get
\[e^{\log \left(x.im \cdot y.re - x.re \cdot y.im\right) - \log \left(y.re \cdot y.re + y.im \cdot y.im\right)} \leadsto e^{\left(\log x.re + \log -1\right) - \log y.im}\]
30.9
- Taylor expanded around 0 to get
\[\color{red}{e^{\left(\log x.re + \log -1\right) - \log y.im}} \leadsto \color{blue}{e^{\left(\log x.re + \log -1\right) - \log y.im}}\]
30.9
- Applied simplify to get
\[e^{\left(\log x.re + \log -1\right) - \log y.im} \leadsto \frac{-1}{y.im} \cdot x.re\]
0.2
- Applied final simplification
- Applied simplify to get
\[\color{red}{\frac{-1}{y.im} \cdot x.re} \leadsto \color{blue}{-\frac{x.re}{y.im}}\]
0