cartesian_to_reduced

static ElectronicBandStructure.cartesian_to_reduced(cartesian, reciprocal_lattice)

Converts cartesian coordinates to fractional coordinates

Parameters:

• cartesian (np.ndarray) – The cartesian coordinates. shape = [N,3]

• reciprocal_lattice (np.ndarray) – The reciprocal lattice vector matrix. Will have the shape (3, 3), defaults to None

Returns:

np.ndarray – The fractional coordinates. shape = [N,3]