isotropic_strain_cost

libcasm.mapping.info.isotropic_strain_cost(

deformation_gradient: Annotated[numpy.typing.ArrayLike, numpy.float64, '[3, 3]'],

) → float

Return the isotropic strain cost for a lattice deformation.

Parameters:

deformation_gradient (array_like, shape=(3,3)) – The parent-to-child deformation gradient tensor, \(F\), a shape=(3,3) matrix.

Returns:

cost – The isotropic strain cost for the lattice deformation given by \(F\). See map_atoms() for the definition.

Return type:

float