5.17.8. operators.O¶ eminus.operators.O(atoms, W)[source]¶Overlap operator.This operator acts on the options 3, 4, 5, and 6.Reference: Comput. Phys. Commun. 128, 1. Parameters: atoms – Atoms object.W – Expansion coefficients of unconstrained wave functions in reciprocal space.Returns:The operator applied on W.