Table 2. Relations for the total length g_xyz, the out-of-plane component g_z and the in-plane component g_xy of the reciprocal-space vectors with indices hkl and of the vector uvw (g _spec) by using direct and reciprocal lattice parameters and the volume V in triclinic, monoclinic and orthorhombic systems.

Triclinic

Monoclinic a ≠ b ≠ c, α = γ = 90°

Orthorhombic a ≠ b ≠ c, α =β = γ = 90°