symmetriaryhmiä
Symmetriaryhmiä are mathematical groups that describe the symmetries of an object. A symmetry operation is a transformation that leaves the object unchanged. For example, rotating a square by 90 degrees, 180 degrees, or 270 degrees around its center, or reflecting it across its diagonals or horizontal and vertical midlines, are all symmetry operations of the square. The set of all such operations forms a group under the operation of composition (performing one symmetry after another).
The specific group associated with an object is called its symmetry group. The elements of the group
Symmetry groups are fundamental in many areas of mathematics and science, including geometry, crystallography, quantum mechanics,