Set of uniform antiprismatic prisms | ||
Type | Prismatic uniform 4-polytope | |
Schläfli symbol | s× | |
Coxeter diagram | ||
Cells | 2 p-gonal antiprisms, 2 p-gonal prisms and 2p triangular prisms | |
Faces | 4p , 4p and 4 | |
Edges | 10p | |
Vertices | 4p | |
Vertex figure | Trapezoidal pyramid | |
Symmetry group | [2''p'',2<sup>+</sup>,2], order 8p [(''p'',2)<sup>+</sup>,2], order 4p | |
Properties | convex if the base is convex |
A p-gonal antiprismatic prism or p-gonal antiduoprism has 2 p-gonal antiprism, 2 p-gonal prism, and 2p triangular prism cells. It has 4p equilateral triangle, 4p square and 4 regular p-gon faces. It has 10p edges, and 4p vertices.
There is an infinite series of convex uniform antiprismatic prisms, starting with the digonal antiprismatic prism is a tetrahedral prism, with two of the tetrahedral cells degenerated into squares. The triangular antiprismatic prism is the first nondegenerate form, which is also an octahedral prism. The remainder are unique uniform 4-polytopes.
There are also star forms following the set of star antiprisms, starting with the pentagram :
Name | Coxeter diagram | Cells | Image | Net |
---|---|---|---|---|
Pentagrammic antiprismatic prism 5/2 antiduoprism | 2 pentagrammic antiprisms 2 pentagrammic prisms 10 triangular prisms | |||
Pentagrammic crossed antiprismatic prism 5/3 antiduoprism | 2 pentagrammic crossed antiprisms 2 pentagrammic prisms 10 triangular prisms | |||
... |
bgcolor=#e7dcc3 colspan=2 | Square antiprismatic prism | |
---|---|---|
Type | Prismatic uniform 4-polytope | |
Schläfli symbol | sx | |
Coxeter-Dynkin | ||
Cells | ||
Faces | 16 , 20 | |
Edges | 40 | |
Vertices | 16 | |
Vertex figure | Trapezoidal pyramid | |
Symmetry group | [(4,2)<sup>+</sup>,2], order 16 [8,2<sup>+</sup>,2], order 32 | |
Properties | convex |
bgcolor=#e7dcc3 colspan=2 | Pentagonal antiprismatic prism | |
---|---|---|
Type | Prismatic uniform 4-polytope | |
Schläfli symbol | sx | |
Coxeter-Dynkin | ||
Cells | 2 (3.3.3.5) 10 (3.4.4) 2 (4.4.5) | |
Faces | 20 , 20 , 4 | |
Edges | 50 | |
Vertices | 20 | |
Vertex figure | Trapezoidal pyramid | |
Symmetry group | [(5,2)<sup>+</sup>,2], order 20 [10,2<sup>+</sup>,2], order 40 | |
Properties | convex |
bgcolor=#e7dcc3 colspan=2 | Hexagonal antiprismatic prism | |
---|---|---|
Type | Prismatic uniform 4-polytope | |
Schläfli symbol | sx | |
Coxeter-Dynkin | ||
Cells | 2 (3.3.3.6) 12 (3.4.4) 2 (4.4.6) | |
Faces | 24 , 24 , 4 | |
Edges | 60 | |
Vertices | 24 | |
Vertex figure | Trapezoidal pyramid | |
Symmetry group | [(2,6)<sup>+</sup>,2], order 24 [12,2<sup>+</sup>,2], order 48 | |
Properties | convex |
A hexagonal antiprismatic prism or hexagonal antiduoprism is a convex uniform 4-polytope. It is formed as two parallel hexagonal antiprisms connected by cubes and triangular prisms. The symmetry of a hexagonal antiprismatic prism is [12,2<sup>+</sup>,2], order 48. It has 24 triangle, 24 square and 4 hexagon faces. It has 60 edges, and 24 vertices.
bgcolor=#e7dcc3 colspan=2 | Heptagonal antiprismatic prism | |
---|---|---|
Type | Prismatic uniform 4-polytope | |
Schläfli symbol | s× | |
Coxeter-Dynkin | ||
Cells | 2 (3.3.3.7) 14 (3.4.4) 2 (4.4.7) | |
Faces | 28 , 28 , 4 | |
Edges | 70 | |
Vertices | 28 | |
Vertex figure | Trapezoidal pyramid | |
Symmetry group | [(7,2)<sup>+</sup>,2], order 28 [14,2<sup>+</sup>,2], order 56 | |
Properties | convex |
A heptagonal antiprismatic prism or heptagonal antiduoprism is a convex uniform 4-polytope. It is formed as two parallel heptagonal antiprisms connected by cubes and triangular prisms. The symmetry of a heptagonal antiprismatic prism is [14,2<sup>+</sup>,2], order 56. It has 28 triangle, 28 square and 4 heptagonal faces. It has 70 edges, and 28 vertices.
bgcolor=#e8dcc3 colspan=2 | Octagonal antiprismatic prism | |
---|---|---|
Type | Prismatic uniform 4-polytope | |
Schläfli symbol | s× | |
Coxeter-Dynkin | ||
Cells | 2 (3.3.3.8) 16 (3.4.4) 2 (4.4.8) | |
Faces | 32 , 32 , 4 | |
Edges | 80 | |
Vertices | 32 | |
Vertex figure | Trapezoidal pyramid | |
Symmetry group | [(8,2)<sup>+</sup>,2], order 32 [16,2<sup>+</sup>,2], order 64 | |
Properties | convex |
A octagonal antiprismatic prism or octagonal antiduoprism is a convex uniform 4-polytope (four-dimensional polytope). It is formed as two parallel octagonal antiprisms connected by cubes and triangular prisms. The symmetry of an octagonal antiprismatic prism is [16,2<sup>+</sup>,2], order 64. It has 32 triangle, 32 square and 4 octagonal faces. It has 80 edges, and 32 vertices.