(1) Created _atom_site_moment.magnitude item. (2) Corrected/improved descriptions of _atom_site_moment.cartesian items. (3) Corrected and consilidated the descriptions and examples of _atom_site_moment_Fourier_param._symmform items. (4) Created the _atom_site_rotation category, which is highly analogous to the _atom_site_moment category.
(1) Created _atom_site_moment.magnitude item. (2) Corrected/improved descriptions of _atom_site_moment.cartesian items. (3) Corrected and consilidated the descriptions and examples of _atom_site_moment_Fourier_param._symmform items. (4) Created the _atom_site_rotation category, which is highly analogous to the _atom_site_moment category.