sknano.core.atoms.POAVR.vpi

POAVR.vpi

General \(\pi\)-orbital axis vector (\(\mathbf{v}_{\pi}\)) formed by the terminii of Vectors Vectors v1, v2, and v3.

\[\mathbf{v}_{\pi} = \mathbf{v}_1 + \mathbf{v}_2\ + \mathbf{v}_3\]