Subsections
- diff_h, diff_k, diff_k, diff_psi
- diff_psirefx, diff_psirefy, diff_psirefz (Tango)
- diff_mode, diff_asn
- diff_mu, diff_omega, diff_chi, diff_phi, diff_gamma, diff_delta, diff_two_theta
- diff_get_r0, diff_set_r0, ~r1
- diff_compute_u (Tango)
- diff_angles()
- diff_ang2h, diff_ang2k, diff_ang2l, diff_ang2psi
- diff_hkl2two_theta, diff_hkl2omega, diff_hkl2chi, diff_hkl2phi, diff_hkl2mu, diff_hkl2gamma, diff_hkl2delta
- diff_calc_angles()
- diff_hkl()
- diff_gk1, diff_gk2, diff_gk3, diff_gw1, diff_gw2, diff_gw3
- attribute( name => "ub_matrix", ...) (non-Tango)
- Absorber
