Rosette Groups
There are two families of discrete two-dimensional point groups, and they are specified with parameter n, which is the order of the group of the rotations in the group.
Family | Intl (orbifold) |
Geo Coxeter |
Schönflies | Order | Examples | |||||
---|---|---|---|---|---|---|---|---|---|---|
Cyclic symmetry | n (nn) |
n + |
Cn | n | + | + |
+ |
+ |
+ |
+ |
Dihedral symmetry | nm (*nn) |
n |
Dn | 2n |
Read more about this topic: List Of Planar Symmetry Groups
Famous quotes containing the word groups:
“... until both employers and workers groups assume responsibility for chastising their own recalcitrant children, they can vainly bay the moon about ignorant and unfair public criticism. Moreover, their failure to impose voluntarily upon their own groups codes of decency and honor will result in more and more necessity for government control.”
—Mary Barnett Gilson (1877?)