Square duoantifastegiaprism

The square duoantifastegiaprism or squidafup, also known as the square duoantiwedge, is a convex scaliform polyteron and a member of the duoantifastegiaprism family. It consists of 2 tesseracts (seen as square duoprisms) and 16 square antifastegiums. 1 tesseract and 6 square antifastegiums join at each vertex.

Vertex coordinates
A square duoantifastegiaprism of edge length 1 has vertex coordinates given by:


 * $$\left(±\frac12,\,±\frac12,\,±\frac12,\,±\frac12,\,\frac{\sqrt{\sqrt2-1}}{2}\right),$$
 * $$\left(0,\,±\frac{\sqrt2}{2},\,0,\,±\frac{\sqrt2}{2},\,-\frac{\sqrt{\sqrt2-1}}{2}\right),$$
 * $$\left(0,\,±\frac{\sqrt2}{2},\,±\frac{\sqrt2}{2},\,0,\,-\frac{\sqrt{\sqrt2-1}}{2}\right),$$
 * $$\left(±\frac{\sqrt2}{2},\,0,\,0,\,±\frac{\sqrt2}{2},\,-\frac{\sqrt{\sqrt2-1}}{2}\right),$$
 * $$\left(±\frac{\sqrt2}{2},\,0,\,±\frac{\sqrt2}{2},\,0,\,-\frac{\sqrt{\sqrt2-1}}{2}\right).$$