User:Tomruen/Symmetry groups

2D spherical symmetry
The spherical symmetry groups: (N=1,2,3,..)

See:
 * Point_groups_in_two_dimensions
 * Frieze group - 7
 * Wallpaper_group -17

2D Euclidean symmetry
The 17 plane wallpaper symmetry groups:

3D Euclidean symmetry
There's 230 symmetry groups in 3-space...