English to Polish Science Mathematics & Statistics

Cyclic groups appear, for instance, in the rotational symmetries of a polygon and the n-th roots of unity (roots of the polynomial xn−1). The group of rotations of the circle S1 is not cyclic; there is no rotation whose integer powers generate all rotations.

Okrąg, koło, krąg? Będę bardzo wdzięczna za odpowiedź.