Runcinated 5-demicube
Encyclopedia

5-cube

Runcinated 5-demicube

Runcitruncated 5-demicube

Runcicantellated 5-demicube

Runcicantitruncated 5-demicube
Orthogonal projections in D5 Coxeter plane


In five-dimensional geometry
Geometry
Geometry arose as the field of knowledge dealing with spatial relationships. Geometry was one of the two fields of pre-modern mathematics, the other being the study of numbers ....

, a runcinated 5-demicube is a convex uniform 5-polytope with a runcination
Runcination
In geometry, runcination is an operation that cuts a regular polytope simultaneously along the faces, edges and vertices, creating new facets in place of the original face, edge, and vertex centers....

 operation, a 3rd order truncations
Truncation (geometry)
In geometry, a truncation is an operation in any dimension that cuts polytope vertices, creating a new facet in place of each vertex.- Uniform truncation :...

 the uniform 5-demicube.

There are unique 4 runcinations of the 5-demicube, including permutations of truncations, and cantellations.

Runcinated 5-demicube

Runcinated 5-demicube
Type uniform polyteron
Uniform polyteron
In geometry, a uniform polyteron is a five-dimensional uniform polytope. By definition, a uniform polyteron is vertex-transitive and constructed from uniform polychoron facets....

Schläfli symbol t0,3{3,32,1}
Coxeter-Dynkin diagram
Coxeter-Dynkin diagram
In geometry, a Coxeter–Dynkin diagram is a graph with numerically labeled edges representing the spatial relations between a collection of mirrors...

4-faces 82
Cells 480
Faces 720
Edges 400
Vertices 80
Vertex figure
Vertex figure
In geometry a vertex figure is, broadly speaking, the figure exposed when a corner of a polyhedron or polytope is sliced off.-Definitions - theme and variations:...

Coxeter group
Coxeter group
In mathematics, a Coxeter group, named after H.S.M. Coxeter, is an abstract group that admits a formal description in terms of mirror symmetries. Indeed, the finite Coxeter groups are precisely the finite Euclidean reflection groups; the symmetry groups of regular polyhedra are an example...

s
D5, [32,1,1]
Properties convex
Convex polytope
A convex polytope is a special case of a polytope, having the additional property that it is also a convex set of points in the n-dimensional space Rn...


Alternate names

  • runcinated demipenteract
  • Small prismated hemipenteract (siphin) (Jonathan Bowers)

Cartesian coordinates

The Cartesian coordinates for the 80 vertices of a runcinated demipenteract centered at the origin are coordinate permutations:
(±1,±1,±1,±1,±3)

with an odd number of plus signs.

Runcitruncated 5-demicube

Runcitruncated 5-demicube
Type uniform polyteron
Uniform polyteron
In geometry, a uniform polyteron is a five-dimensional uniform polytope. By definition, a uniform polyteron is vertex-transitive and constructed from uniform polychoron facets....

Schläfli symbol t0,1,3{3,32,1}
Coxeter-Dynkin diagram
Coxeter-Dynkin diagram
In geometry, a Coxeter–Dynkin diagram is a graph with numerically labeled edges representing the spatial relations between a collection of mirrors...

4-faces 82
Cells 720
Faces 1840
Edges 1680
Vertices 480
Vertex figure
Vertex figure
In geometry a vertex figure is, broadly speaking, the figure exposed when a corner of a polyhedron or polytope is sliced off.-Definitions - theme and variations:...

Coxeter group
Coxeter group
In mathematics, a Coxeter group, named after H.S.M. Coxeter, is an abstract group that admits a formal description in terms of mirror symmetries. Indeed, the finite Coxeter groups are precisely the finite Euclidean reflection groups; the symmetry groups of regular polyhedra are an example...

s
D5, [32,1,1]
Properties convex
Convex polytope
A convex polytope is a special case of a polytope, having the additional property that it is also a convex set of points in the n-dimensional space Rn...


Cartesian coordinates

The Cartesian coordinates for the 480 vertices of a runcicantitruncated demipenteract centered at the origin are coordinate permutations:
(±1,±1,±3,±3,±5)

with an odd number of plus signs.

Runcicantellated 5-demicube

Runcicantellated 5-demicube
Type uniform polyteron
Uniform polyteron
In geometry, a uniform polyteron is a five-dimensional uniform polytope. By definition, a uniform polyteron is vertex-transitive and constructed from uniform polychoron facets....

Schläfli symbol t0,2,3{3,32,1}
Coxeter-Dynkin diagram
Coxeter-Dynkin diagram
In geometry, a Coxeter–Dynkin diagram is a graph with numerically labeled edges representing the spatial relations between a collection of mirrors...

4-faces 82
Cells 560
Faces 1280
Edges 1120
Vertices 320
Vertex figure
Vertex figure
In geometry a vertex figure is, broadly speaking, the figure exposed when a corner of a polyhedron or polytope is sliced off.-Definitions - theme and variations:...

Coxeter group
Coxeter group
In mathematics, a Coxeter group, named after H.S.M. Coxeter, is an abstract group that admits a formal description in terms of mirror symmetries. Indeed, the finite Coxeter groups are precisely the finite Euclidean reflection groups; the symmetry groups of regular polyhedra are an example...

s
D5, [32,1,1]
Properties convex
Convex polytope
A convex polytope is a special case of a polytope, having the additional property that it is also a convex set of points in the n-dimensional space Rn...


Cartesian coordinates

The Cartesian coordinates for the 320 vertices of a runcicantellated demipenteract centered at the origin are coordinate permutations:
(±1,±1,±1,±3,±5)

with an odd number of plus signs.

Runcicantitruncated 5-demicube

Runcicantitruncated 5-demicube
Type uniform polyteron
Uniform polyteron
In geometry, a uniform polyteron is a five-dimensional uniform polytope. By definition, a uniform polyteron is vertex-transitive and constructed from uniform polychoron facets....

Schläfli symbol t0,1,2,3{3,32,1}
Coxeter symbol t0,1,2,3(121)
Coxeter-Dynkin diagram
Coxeter-Dynkin diagram
In geometry, a Coxeter–Dynkin diagram is a graph with numerically labeled edges representing the spatial relations between a collection of mirrors...

4-faces 82
Cells 720
Faces 2080
Edges 2400
Vertices 960
Vertex figure
Vertex figure
In geometry a vertex figure is, broadly speaking, the figure exposed when a corner of a polyhedron or polytope is sliced off.-Definitions - theme and variations:...

Coxeter group
Coxeter group
In mathematics, a Coxeter group, named after H.S.M. Coxeter, is an abstract group that admits a formal description in terms of mirror symmetries. Indeed, the finite Coxeter groups are precisely the finite Euclidean reflection groups; the symmetry groups of regular polyhedra are an example...

s
D5, [32,1,1]
Properties convex
Convex polytope
A convex polytope is a special case of a polytope, having the additional property that it is also a convex set of points in the n-dimensional space Rn...


Cartesian coordinates

The Cartesian coordinates for the 960 vertices of a runcicantitruncated demipenteract centered at the origin are coordinate permutations:
(±1,±1,±3,±5,±7)

with an odd number of plus signs.

Related polytopes

This polytope is based on the 5-demicube, a part of a dimensional family of uniform polytope
Uniform polytope
A uniform polytope is a vertex-transitive polytope made from uniform polytope facets of a lower dimension. Uniform polytopes of 2 dimensions are the regular polygons....

s called demihypercubes for being alternation of the hypercube
Hypercube
In geometry, a hypercube is an n-dimensional analogue of a square and a cube . It is a closed, compact, convex figure whose 1-skeleton consists of groups of opposite parallel line segments aligned in each of the space's dimensions, perpendicular to each other and of the same length.An...

 family.

There are 23 uniform polytera
Uniform polyteron
In geometry, a uniform polyteron is a five-dimensional uniform polytope. By definition, a uniform polyteron is vertex-transitive and constructed from uniform polychoron facets....

 (uniform 5-polytope) that can be constructed from the D5 symmetry of the 5-demicube, of which are unique to this family, and 15 are shared within the 5-cube family.

External links

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