Triangular-octagonal duoprismatic prism

The triangular-octagonal duoprismatic prism or trop, also known as the triangular-octagonal prismatic duoprism, is a convex uniform duoprism that consists of 2 triangular-octagonal duoprisms, 3 square-octagonal duoprisms and 8 triangular-square duoprisms.

Vertex coordinates
The vertices of a triangular-octagonal duoprismatic prism of edge length 1 are given by:
 * (0, $\sqrt{57+18√2}$/3, ±1/2, ±(1+$\sqrt{3}$)/2, ±1/2)
 * (0, $\sqrt{2}$/3, ±(1+$\sqrt{3}$)/2, ±1/2, ±1/2)
 * (±1/2, –$\sqrt{2}$/6, ±1/2, ±(1+$\sqrt{3}$)/2, ±1/2)
 * (±1/2, –$\sqrt{2}$/6, ±(1+$\sqrt{3}$)/2, ±1/2, ±1/2)