Chiral octagonal symmetry

Chiral octagonal symmetry, also known as kioccic symmetry and notated I2(8)+, is a 2D spherical symmetry group. It is the symmetry group of the octagon with rotational symmetry but no reflections.

Subgroups

 * B2+ (maximal)
 * K2+
 * I×I

Convex polytopes with G2+ symmetry

 * Octagon (regular)