Pentagrammic-hendecagrammic duoprism

The pentagrammic-hendecagrammic duoprism, also known as the 5/2-11/3 duoprism, is a uniform duoprism that consists of 11 pentagrammic prisms and 5 hendecagrammic prisms, with 2 of each at each vertex.

The name can also refer to the pentagrammic-small hendecagrammic duoprism, the pentagrammic-great hendecagrammic duoprism, or the pentagrammic-grand hendecagrammic duoprism.

Vertex coordinates
The coordinates of a pentagrammic-hendecagrammic duoprism, centered at the origin and with edge length 2sin(3π/11), are given by: where j = 2, 4, 6, 8, 10.
 * $$\left(±\sin\frac{3\pi}{11},\,-\sqrt{\frac{5-2\sqrt5}{5}}\sin\frac{3\pi}{11},\,1,\,0\right),$$
 * $$\left(±\sin\frac{3\pi}{11},\,-\sqrt{\frac{5-2\sqrt5}{5}}\sin\frac{3\pi}{11},\,\cos\left(\frac{j\pi}{11}\right),\,±\sin\left(\frac{j\pi}{11}\right)\right),$$
 * $$\left(±\frac{\sqrt5-1}{2}\sin\frac{3\pi}{11},\,\sqrt{\frac{5+\sqrt5}{10}}\sin\frac{3\pi}{11},\,1,\,0\right),$$
 * $$\left(±\frac{\sqrt5-1}{2}\sin\frac{3\pi}{11},\,\sqrt{\frac{5+\sqrt5}{10}}\sin\frac{3\pi}{11},\,\cos\left(\frac{j\pi}{11}\right),\,±\sin\left(\frac{j\pi}{11}\right)\right),$$
 * $$\left(0,\,-2\sqrt{\frac{5-\sqrt5}{10}}\sin\frac{3\pi}{11},\,1,\,0\right),$$
 * $$\left(0,\,-2\sqrt{\frac{5-\sqrt5}{10}}\sin\frac{3\pi}{11},\,\cos\left(\frac{j\pi}{11}\right),\,±\sin\left(\frac{j\pi}{11}\right)\right),$$