Electromagnetic Oscillation

Electromagnetic's Oscillation	Formula
Wave equation	${\displaystyle \nabla ^{2}E(t)=-\omega E(t)}$ ${\displaystyle \nabla ^{2}B(t)=-\omega B(t)}$
Wave function	${\displaystyle E(t)=ASin\omega t}$ ${\displaystyle B(t)=ASin\omega t}$
Angular speed	${\displaystyle \omega =\lambda f={\sqrt {\frac {1}{T}}}=C}$
Time constant	${\displaystyle T=\mu \epsilon }$
Wave hape