| − | '''Exterior calculus''' is a form of [[mathematics]] used for formulation of the usual differential and integral calculus that does not depend on any particular coordinate system. It is usully used to do calculus on [[manifold]]s. | + | '''Exterior calculus''' is a form of [[mathematics]] used for formulation of the usual differential and integral [[calculus]] that does not depend on any particular [[coordinate system]]. It is usully used to do calculus on [[manifold]]s. |