Essential Classes in sympy.vector (docstrings) CoordSys3D .. autoclass:: sympy.vector.coordsysrect.CoordSys3D :members: .. automethod:: sympy.vector.coordsysrect.CoordSys3D.__init__ Vector .. autoclass:: sympy.vector.vector.Vector :members: Dyadic .. autoclass:: sympy.vector.dyadic.Dyadic :members: Del .. autoclass:: sympy.vector.deloperator.Del :members: ParametricRegion .. autoclass:: sympy.vector.parametricregion.ParametricRegion :members: ImplicitRegion .. autoclass:: sympy.vector.implicitregion.ImplicitRegion :members: ParametricIntegral .. autoclass:: sympy.vector.integrals.ParametricIntegral :members: