d Φ d t {\displaystyle {d\Phi \over dt}}
ω = s r 2 {\displaystyle \omega ={s \over r^{2}}}
L = d I d s c o s α {\displaystyle L={dI \over {ds\ cos\alpha }}}
M = d Φ d s {\displaystyle M={d\Phi \over ds}}
E = I cos α r 2 {\displaystyle E={I\cos \alpha \over r^{2}}}
