ProductDescriptionOurfirstknowledgeofdifferentialgeometryusuallycomesfromthestudyofthecurvesandsurfacesin$I\!\!R^3$thatariseincalculus.Herewelearnaboutlineandsurfaceintegrals,divergenceandcurl,andthevariousformsofStokes'Theorem.Ifwearefortunate,wemayencountercurvatureandsuchth