User:Nilradical/Sandbox

Conway o ** *x xx Crystal. p1 pm cm pg

Conway 2222 *2222 2*22 22* 22x Crystal. p2 pmm cmm pmg pgg

Conway 333 *333 3*3 Crystal. p3 p3m1 p31m

Conway 442 *442 4*2 Crystal. p4 p4m p4g

Conway 632 *632 Crystal. p6 p6m

Least rotation angle	Orientation preserving (No reflections or glides)	Mirrors meet all glide axes and centers of rotation	Has independent glides or centers of rotation
2π	p1 (o)	pm (**)	Has refections? Yes cm (*x) No pg (xx)
2π / 2	p2 (2222)	pmm (*2222)	Number of perpendicular reflections Two cmm (2*22) One pmg (22*) None pgg (22x)
2π / 3	p3 (333)	p3m1 (*333)	p31m (3*3)
2π / 4	p4 (442)	p4m (*442)	p4g (4*2)
2π / 6	p6 (632)	p6m (*632)