International
Tables for
Crystallography
Volume A
Space-group symmetry
Edited by M. I. Aroyo

International Tables for Crystallography (2015). Vol. A, ch. 1.4, p. 50

Figure 1.4.2.1 

M. I. Aroyo,a G. Chapuis,b B. Souvignierd and A. M. Glazerc
[Figure 1.4.2.1]
Figure 1.4.2.1

General-position and symmetry-operations blocks for the space group [P2_1/c], No. 14 (unique axis b, cell choice 1). The coordinate triplets of the general position, numbered from (1) to (4), correspond to the four coset representatives of the decomposition of [P2_1/c] with respect to its translation subgroup, cf. Table 1.4.2.6[link]. The entries of the symmetry-operations block numbered from (1) to (4) describe geometrically the symmetry operations represented by the four coordinate triplets of the general-position block.