Systematic Absences of the magnetic space group P21 (#4.7) in the setting (2a, b, 2c; 0, 0, 0) of the parent space group P21/c (No. 14)
Values of h, k, l:  h integer, k integer, l integer
Warning: h, k, l are referred to the parent-like setting
Systematic absences for general reflections (produced by centrings):
Diffraction vector type: (h k l) -> Systematic absence: h + l = 2n + 1
Systematic absences for special reflections:
Diffraction vector type: (0 k 0) -> Systematic absence: k = 2n
For k = 1 : I /= 0 F = (Fx,0,Fz)
For k = 2 : I = 0 F = (0,Fy,0)
[Show form of structure factor for every type of reflection]