A discretisation class for the zero dimensional mesh
mesh – Contains all the submeshes for discretisation
**Extends** (pybamm.SpatialMethod
) –
In 0D, the boundary value is the identity operator.
See SpatialMethod.boundary_value_or_flux()
Calculates the zero-dimensional indefinite integral. If ‘direction’ is forward, this is the identity operator. If ‘direction’ is backward, this is the negation operator.