Decagonal duoprismatic prism

The decagonal duoprismatic prism or daddip, also known as the decagonal-decagonal prismatic duoprism, is a convex uniform duoprism that consists of 2 decagonal duoprisms and 20 square-decagonal duoprisms.

This polyteron can be alternated into a pentagonal duoantiprismatic antiprism, although it cannot be made uniform.

Vertex coordinates
The vertices of a decagonal duoprismatic prism of edge length 1 are given by:
 * (0, ±(1+$\sqrt{13+4√5}$)/2, 0, ±(1+$\sqrt{5}$)/2, ±1/2)
 * (0, ±(1+$\sqrt{5}$)/2, ±$\sqrt{5}$/4, ±(3+$\sqrt{10+2√5}$)/4, ±1/2)
 * (0, ±(1+$\sqrt{5}$)/2, ±$\sqrt{5}$/2, ±1/2, ±1/2)
 * (±$\sqrt{5+2√5}$/4, ±(3+$\sqrt{10+2√5}$)/4, 0, ±(1+$\sqrt{5}$)/2, ±1/2)
 * (±$\sqrt{5}$/4, ±(3+$\sqrt{10+2√5}$)/4, ±$\sqrt{5}$/4, ±(3+$\sqrt{10+2√5}$)/4, ±1/2)
 * (±$\sqrt{5}$/4, ±(3+$\sqrt{10+2√5}$)/4, ±$\sqrt{5}$/2, ±1/2, ±1/2)
 * (±$\sqrt{5+2√5}$/2, ±1/2, 0, ±(1+$\sqrt{5+2√5}$)/2, ±1/2)
 * (±$\sqrt{5}$/2, ±1/2, ±$\sqrt{5+2√5}$/4, ±(3+$\sqrt{10+2√5}$)/4, ±1/2)
 * (±$\sqrt{5}$/2, ±1/2, ±$\sqrt{5+2√5}$/2, ±1/2, ±1/2)