Divergence Theorem

#Math

$\displaystyle \iiint_\mathscr{W}\text{div}(\vec F)\space dV=\oint_S\vec F\cdot d\vec S$

• Used in derivation of Gauss's Law
• Like 3D version of Stoke’s Theorem, where $S$ is a positively oriented boundary of $W$. That essentially means the normal of $S$ points outward.