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tesseract
EntityQ12142· pop 37· linked from 404 articles

Also known as 8-cell, cubic prism, 4-cube, octachoron, octahedroid, 4-hypercube

In geometry, a tesseract or 4-cube is a four-dimensional hypercube, analogous to a two-dimensional square and a three-dimensional cube. Just as the perimeter of the square consists of four edges and the surface of the cube consists of six square faces, the hypersurface of the tesseract consists of eight cubical cells, meeting at right angles. The tesseract is one of the six convex regular 4-polytopes.

Key facts

Polychoron.Name
Tesseract8-cell(4-cube)
Polychoron.Image_File
8-cell-simple.gif
Polychoron.Type
Convex regular 4-polytope
Polychoron.Family
Hypercubes
Polychoron.Last
9
Polychoron.Index
10
Polychoron.Next
11
Polychoron.Schläfli
{4,3,3}t0,3{4,3,2} or {4,3}×{ }t0,2{4,2,4} or {4}×{4}t0,2,3{4,2,2} or {4}×{ }×{ }t0,1,2,3{2,2,2} or { }×{ }×{ }×{ }
Polychoron.Cell_List
8 {4,3} 20px
Polychoron.Face_List
24 {4}
Polychoron.Edge_Count
32
Polychoron.Vertex_Count
16
Polychoron.Petrie_Polygon
octagon
Polychoron.Coxeter_Group
B4, [3,3,4]
Polychoron.Vertex_Figure
80px|class=skin-invertTetrahedron
Polychoron.Dual
16-cell
Polychoron.Property_List
convex, isogonal, isotoxal, isohedral, Hanner polytope

via Wikipedia infobox

Wikidata facts

Image
8-cell-simple.gif
Show 3 more facts
Commons category
Tesseract
Schläfli symbol
{4,3,3}
Sources (3)

via Wikidata · CC0

~16 min read

Article

14 sections
Contents
  • Construction
  • In popular cultures
  • Properties
  • Unit tesseract
  • Radial equilateral symmetry
  • Formulas
  • As a configuration
  • Projections
  • Tessellation
  • Related polytopes and honeycombs
  • Notes
  • References
  • Sources
  • External links

{{Infobox polychoron | Name=Tesseract8-cell(4-cube) | Image_File=8-cell-simple.gif | Type=Convex regular 4-polytope | Family=Hypercubes | Last=9 | Index=10 | Next=11 | Schläfli={4,3,3}t0,3{4,3,2} or {4,3}×{ }t0,2{4,2,4} or {4}×{4}t0,2,3{4,2,2} or {4}×{ }×{ }t0,1,2,3{2,2,2} or { }×{ }×{ }×{ } | CD= | Cell_List=8 {4,3} 20px | Face_List=24 {4} | Edge_Count=32 | Vertex_Count=16 | Petrie_Polygon=octagon | Coxeter_Group=B4, [3,3,4] | Vertex_Figure=80px|class=skin-invertTetrahedron | Dual=16-cell | Property_List=convex, isogonal, isotoxal, isohedral, Hanner polytope }} In geometry, a tesseract or 4-cube is a four-dimensional hypercube, analogous to a two-dimensional square and a three-dimensional cube. Just as the perimeter of the square consists of four edges and the surface of the cube consists of six square faces, the hypersurface of the tesseract consists of eight cubical cells, meeting at right angles. The tesseract is one of the six convex regular 4-polytopes.

The tesseract is also called an 8-cell, C8, (regular) octachoron, or cubic prism. It is the four-dimensional measure polytope, taken as a unit for hypervolume. Harold Scott MacDonald Coxeter labels it the polytope. The term hypercube without a dimension reference is frequently treated as a synonym for this specific polytope.

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