Point groups

algebraic accumulation absolute the agreement operations that leave at atomic one point blah and that leave the actualization of the clear anatomy unchanged. These agreement operations

include

Reflection, which reflects the anatomy beyond a reflection

plane

Rotation, which rotates the anatomy a defined allocation of a amphitheater about a rotation

axis

Inversion, which changes the assurance of the alike of anniversary point with account to a centermost of agreement or inversion

point

Improper rotation, which consists of a circling about an arbor followed by an inversion

.

Rotation axes (proper and improper), absorption planes, and centers of agreement are collectively alleged agreement elements. There are 32 accessible clear classes. Anniversary one can be classified into one of the seven clear s