User:Jacobolus/sandbox

Division by zero sources:




 * $$\begin{align}

\left(\sqrt[\oplus]{\varepsilon}\right)^2 = \frac {1 \ominus \delta \ominus \phi } { 1 \ominus \delta \oplus \phi }

\\[10mu]

\left(\sqrt[\oplus]{\varepsilon}\right)^2 = 1 \ominus \frac {S(\phi) } {S(1 \ominus \delta) }

\\[10mu]

C_{1/2}\left(\varepsilon\right) = \frac {S(\phi) } {C(\delta) }

\end{align}$$

Or as angle measures:



\cos\tfrac12\varepsilon = \frac {\sin \phi } {\cos \delta }

$$