sknano.core.atoms.POAV.reciprocal_v1

POAV.reciprocal_v1

Reciprocal Vector $\mathbf{v}_1^{*}$.

Defined as:

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