These last two examples (and Stokes' theorem in general) are the subject of vector calculus. They play important roles in [[electrodynamics]]. The divergence and curl operations are cornerstones of [[Maxwell's Equations]]. | These last two examples (and Stokes' theorem in general) are the subject of vector calculus. They play important roles in [[electrodynamics]]. The divergence and curl operations are cornerstones of [[Maxwell's Equations]]. |