sknano.core.atoms.POAV.reciprocal_v2

POAV.reciprocal_v2

Reciprocal Vector $\mathbf{v}_2^{*}$.

Defined as:

$$\mathbf{v}_2^{*} = \frac{\mathbf{v}_3\times\mathbf{v}_1} {|\mathbf{v}_1\cdot(\mathbf{v}_2\times\mathbf{v}_3)|}$$