principia_materia.representation.single_tensor_rep module

class principia_materia.representation.single_tensor_rep.SingleTensorRep(rank, pg, dim=3, tol=1e-06)

Bases: BaseRepresentation

Point group representation for a rank N tensor.

Parameters:

• rank (int) – Rank of the tensor.

• pg (str or PointGroup object) – The point group.

• dim (int, optional, default to 3) – Dimension of the space.

• tol (float, optional, default to 1.0E-6) – Error tolerence.