sknano.core
sknano.core.crystallography
sknano.core.crystallography.Reciprocal3DLatticeMixin.b2
sknano.core.crystallography.Reciprocal3DLatticeMixin.cos_alpha_star
Reciprocal3DLatticeMixin.
b3
3D reciprocal lattice vector \(\mathbf{b}_3=\mathbf{c}^{*}\).