Махало на Капица

<m> |\bar{z}| = |z| </m>

<m>|(\bar{z})^n| = |z|^n </m>

<m> \arg(z^n) = n \arg(z) </m>

<m> \begin{matrix} \left\{ \begin{matrix} x &=& l \sin \varphi\\ y &=& - l \cos \varphi - a \cos \nu t \end{matrix} \right. \end{matrix} </m>