Compound of seven digons

The compound of seven digons is a degenerate regular polygon compound, being the compound of 7 digons. As such it has 14 edges and 14 vertices.

It can be formed as a degenerate stellation of the tetradecagon, by extending the edges to infinity.

Its quotient prismatic equivalent is the digonal heptapetoorthowedge, which is eight-dimensional.

Vertex coordinates
Coordinates for a of edge length 1, centered at the origin, are:


 * $$\left(\pm\frac12,\,0\right),$$
 * $$\left(\pm\frac{\cos\frac{\pi}{7}}{2},\,\pm\frac{\sin\frac{\pi}{7}}{2}\right),$$
 * $$\left(\pm\frac{\cos\frac{2\pi}{7}}{2},\,\pm\frac{\sin\frac{2\pi}{7}}{2}\right),$$
 * $$\left(\pm\frac{\cos\frac{3\pi}{7}}{2},\,\pm\frac{\sin\frac{3\pi}{7}}{2}\right).$$