62 relations: Boerdijk–Coxeter helix, Convex polytope, Coxeter notation, Coxeter–Dynkin diagram, Cross-polytope, Cube, Cubic honeycomb, Demihypercube, Dihedral angle, Dual polyhedron, Duoprism, Duopyramid, Euclidean space, Face (geometry), Four-dimensional space, Geometry, Graphical projection, Harold Scott MacDonald Coxeter, Hexagonal bipyramid, Hypercube, Hyperrectangle, Isogonal figure, Isohedral figure, Isotoxal figure, John Horton Conway, Ludwig Schläfli, Net (polyhedron), Norman Johnson (mathematician), Octagon, Octahedral pyramid, Octahedron, Order-4 dodecahedral honeycomb, Order-4 hexagonal tiling honeycomb, Order-6 tetrahedral honeycomb, Orthant, Projective cover, Quasiregular polyhedron, Rectified tesseract, Regular 4-polytope, Regular Polytopes (book), Schläfli symbol, Schlegel diagram, Stereographic projection, Tessellation, Tesseract, Tesseractic honeycomb, Tetrahedron, Thorold Gosset, Topology, Triakis tetrahedron, ..., Triangle, Triangular tiling, Truncated tesseract, Venn diagram, Vertex figure, Wythoff construction, 16-cell honeycomb, 24-cell, 24-cell honeycomb, 4-polytope, 5-cell, 600-cell. Expand index (12 more) »

## Boerdijk–Coxeter helix

The Boerdijk–Coxeter helix, named after H. S. M. Coxeter and A. H. Boerdijk, is a linear stacking of regular tetrahedra, arranged so that the edges of the complex that belong to a single tetrahedron form three intertwined helices.

New!!: 16-cell and Boerdijk–Coxeter helix ·

## 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.

New!!: 16-cell and Convex polytope ·

## Coxeter notation

In geometry, Coxeter notation (also Coxeter symbol) is a system of classifying symmetry groups, describing the angles between with fundamental reflections of a Coxeter group in a bracketed notation, with modifiers to indicate certain subgroups.

New!!: 16-cell and Coxeter notation ·

## Coxeter–Dynkin diagram

In geometry, a Coxeter–Dynkin diagram (or Coxeter diagram, Coxeter graph) is a graph with numerically labeled edges (called branches) representing the spatial relations between a collection of mirrors (or reflecting hyperplanes).

New!!: 16-cell and Coxeter–Dynkin diagram ·

## Cross-polytope

In geometry, a cross-polytope, orthoplex, hyperoctahedron, or cocube is a regular, convex polytope that exists in any number of dimensions.

New!!: 16-cell and Cross-polytope ·

## Cube

In geometry, a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex.

New!!: 16-cell and Cube ·

## Cubic honeycomb

The cubic honeycomb or cubic cellulation is the only regular space-filling tessellation (or honeycomb) in Euclidean 3-space, made up of cubic cells.

New!!: 16-cell and Cubic honeycomb ·

## Demihypercube

In geometry, demihypercubes (also called n-demicubes, n-hemicubes, and half measure polytopes) are a class of n-polytopes constructed from alternation of an n-hypercube, labeled as hγn for being half of the hypercube family, γn.

New!!: 16-cell and Demihypercube ·

## Dihedral angle

In geometry, a dihedral or torsion angle is the angle between two hyperplanes.

New!!: 16-cell and Dihedral angle ·

## Dual polyhedron

In geometry, polyhedra are associated into pairs called duals, where the vertices of one correspond to the faces of the other.

New!!: 16-cell and Dual polyhedron ·

## Duoprism

In geometry of 4 dimensions or higher, a duoprism is a polytope resulting from the Cartesian product of two polytopes, each of two dimensions or higher.

New!!: 16-cell and Duoprism ·

## Duopyramid

In geometry of 4 dimensions or higher, a duopyramid is a dual polytope of a duoprism.

New!!: 16-cell and Duopyramid ·

## Euclidean space

In geometry, Euclidean space encompasses the two-dimensional Euclidean plane, the three-dimensional space of Euclidean geometry, and certain other spaces.

New!!: 16-cell and Euclidean space ·

## Face (geometry)

In solid geometry, a face is a flat (planar) surface that forms part of the boundary of a solid object; a three-dimensional solid bounded exclusively by flat faces is a polyhedron.

New!!: 16-cell and Face (geometry) ·

## Four-dimensional space

In mathematics, four-dimensional space ("4D") is a geometric space with four dimensions.

New!!: 16-cell and Four-dimensional space ·

## Geometry

Geometry (from the γεωμετρία; geo- "earth", -metron "measurement") is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.

New!!: 16-cell and Geometry ·

## Graphical projection

Graphical projection is a protocol, used in technical drawing, by which an image of a three-dimensional object is projected onto a planar surface without the aid of numerical calculation.

New!!: 16-cell and Graphical projection ·

## Harold Scott MacDonald Coxeter

Harold Scott MacDonald "Donald" Coxeter, FRS, FRSC, (February 9, 1907 – March 31, 2003) was a British-born Canadian geometer.

New!!: 16-cell and Harold Scott MacDonald Coxeter ·

## Hexagonal bipyramid

A hexagonal bipyramid is a polyhedron formed from two hexagonal pyramids joined at their bases.

New!!: 16-cell and Hexagonal bipyramid ·

## Hypercube

In geometry, a hypercube is an n-dimensional analogue of a square (n.

New!!: 16-cell and Hypercube ·

## Hyperrectangle

In geometry, an n-orthotopeCoxeter, 1973 (also called a hyperrectangle or a box) is the generalization of a rectangle for higher dimensions, formally defined as the Cartesian product of intervals.

New!!: 16-cell and Hyperrectangle ·

## Isogonal figure

In geometry, a polytope (a polygon, polyhedron or tiling, for example) is isogonal or vertex-transitive if, loosely speaking, all its vertices are the same.

New!!: 16-cell and Isogonal figure ·

## Isohedral figure

In geometry, a polytope of dimension 3 (a polyhedron) or higher is isohedral or face-transitive when all its faces are the same.

New!!: 16-cell and Isohedral figure ·

## Isotoxal figure

In geometry, a polytope (for example, a polygon or a polyhedron), or a tiling, is isotoxal or edge-transitive if its symmetries act transitively on its edges.

New!!: 16-cell and Isotoxal figure ·

## John Horton Conway

John Horton Conway FRS (born 26 December 1937) is a British mathematician active in the theory of finite groups, knot theory, number theory, combinatorial game theory and coding theory.

New!!: 16-cell and John Horton Conway ·

## Ludwig Schläfli

Ludwig Schläfli (15 January 1814 – 20 March 1895) was a Swiss mathematician, specialising in geometry and complex analysis (at the time called function theory) who was one of the key figures in developing the notion of higher-dimensional spaces.

New!!: 16-cell and Ludwig Schläfli ·

## Net (polyhedron)

In geometry the net of a polyhedron is an arrangement of edge-joined polygons in the plane which can be folded (along edges) to become the faces of the polyhedron.

New!!: 16-cell and Net (polyhedron) ·

## Norman Johnson (mathematician)

Norman W. Johnson (born November 12, 1930) is a mathematician, previously at Wheaton College, Norton, Massachusetts.

New!!: 16-cell and Norman Johnson (mathematician) ·

## Octagon

In geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, "eight angles") is a polygon that has eight sides.

New!!: 16-cell and Octagon ·

## Octahedral pyramid

In 4-dimensional geometry, the octahedral pyramid is bounded by one octahedron on the base and 8 triangular pyramid cells which meet at the apex.

New!!: 16-cell and Octahedral pyramid ·

## Octahedron

In geometry, an octahedron (plural: octahedra) is a polyhedron with eight faces.

New!!: 16-cell and Octahedron ·

## Order-4 dodecahedral honeycomb

In the geometry of hyperbolic 3-space, the order-4 dodecahedral honeycomb is one of four compact regular space-filling tessellations (or honeycombs).

New!!: 16-cell and Order-4 dodecahedral honeycomb ·

## Order-4 hexagonal tiling honeycomb

In the field of hyperbolic geometry, the order-4 hexagonal tiling honeycomb arises as one of 11 regular paracompact honeycombs in 3-dimensional hyperbolic space.

New!!: 16-cell and Order-4 hexagonal tiling honeycomb ·

## Order-6 tetrahedral honeycomb

In the geometry of hyperbolic 3-space, the order-6 tetrahedral honeycomb a paracompact regular space-filling tessellation (or honeycomb).

New!!: 16-cell and Order-6 tetrahedral honeycomb ·

## Orthant

In geometry, an orthant or hyperoctant is the analogue in n-dimensional Euclidean space of a quadrant in the plane or an octant in three dimensions.

New!!: 16-cell and Orthant ·

## Projective cover

In the branch of abstract mathematics called category theory, a projective cover of an object X is in a sense the best approximation of X by a projective object P. Projective covers are the dual of injective envelopes.

New!!: 16-cell and Projective cover ·

## Quasiregular polyhedron

In geometry, a quasiregular polyhedron is a semiregular polyhedron that has exactly two kinds of regular faces, which alternate around each vertex.

New!!: 16-cell and Quasiregular polyhedron ·

## Rectified tesseract

In geometry, the rectified tesseract, rectified 8-cell, or runcic tesseract is a uniform 4-polytope (4-dimensional polytope) bounded by 24 cells: 8 cuboctahedra, and 16 tetrahedra.

New!!: 16-cell and Rectified tesseract ·

## Regular 4-polytope

In mathematics, a regular 4-polytope is a regular four-dimensional polytope.

New!!: 16-cell and Regular 4-polytope ·

## Regular Polytopes (book)

Regular Polytopes is a mathematical geometry book written by Canadian mathematician H.S.M. Coxeter.

New!!: 16-cell and Regular Polytopes (book) ·

## Schläfli symbol

In geometry, the Schläfli symbol is a notation of the form that defines regular polytopes and tessellations.

New!!: 16-cell and Schläfli symbol ·

## Schlegel diagram

In geometry, a Schlegel diagram is a projection of a polytope from R^d into R^ through a point beyond one of its facets or faces.

New!!: 16-cell and Schlegel diagram ·

## Stereographic projection

In geometry, the stereographic projection is a particular mapping (function) that projects a sphere onto a plane.

New!!: 16-cell and Stereographic projection ·

## Tessellation

A tessellation of a flat surface is the tiling of a plane using one or more geometric shapes, called tiles, with no overlaps and no gaps.

New!!: 16-cell and Tessellation ·

## Tesseract

In geometry, the tesseract is the four-dimensional analog of the cube; the tesseract is to the cube as the cube is to the square.

New!!: 16-cell and Tesseract ·

## Tesseractic honeycomb

In four-dimensional euclidean geometry, the tesseractic honeycomb is one of the three regular space-filling tessellations (or honeycombs), represented by Schläfli symbol, and constructed by a 4-dimensional packing of tesseract facets.

New!!: 16-cell and Tesseractic honeycomb ·

## Tetrahedron

In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons) is a polyhedron composed of four triangular faces, three of which meet at each corner or vertex.

New!!: 16-cell and Tetrahedron ·

## Thorold Gosset

John Herbert de Paz Thorold Gosset (16 October 1869 – December 1962) was an English lawyer and an amateur mathematician.

New!!: 16-cell and Thorold Gosset ·

## Topology

In mathematics, topology (from the Greek τόπος, place, and λόγος, study), is the study of topological spaces.

New!!: 16-cell and Topology ·

## Triakis tetrahedron

In geometry, a triakis tetrahedron (or kistetrahedron) is an Archimedean dual solid, or a Catalan solid.

New!!: 16-cell and Triakis tetrahedron ·

## Triangle

A triangle is a polygon with three edges and three vertices.

New!!: 16-cell and Triangle ·

## Triangular tiling

In geometry, the triangular tiling or triangular tessellation is one of the three regular tilings of the Euclidean plane.

New!!: 16-cell and Triangular tiling ·

## Truncated tesseract

In geometry, a truncated tesseract is a uniform 4-polytope formed as the truncation of the regular tesseract.

New!!: 16-cell and Truncated tesseract ·

## Venn diagram

A Venn diagram or set diagram is a diagram that shows all possible logical relations between a finite collection of different sets.

New!!: 16-cell and Venn diagram ·

## Vertex figure

In geometry a vertex figure is, broadly speaking, the figure exposed when a corner of a polyhedron or polytope is sliced off.

New!!: 16-cell and Vertex figure ·

## Wythoff construction

In geometry, a Wythoff construction, named after mathematician Willem Abraham Wythoff, is a method for constructing a uniform polyhedron or plane tiling.

New!!: 16-cell and Wythoff construction ·

## 16-cell honeycomb

In four-dimensional Euclidean geometry, the 16-cell honeycomb is the one of three regular space-filling tessellation (or honeycomb) in Euclidean 4-space.

New!!: 16-cell and 16-cell honeycomb ·

## 24-cell

In geometry, the 24-cell is the convex regular 4-polytope (four-dimensional analogue of a Platonic solid) with Schläfli symbol.

New!!: 16-cell and 24-cell ·

## 24-cell honeycomb

In four-dimensional Euclidean geometry, the 24-cell honeycomb, or icositetrachoric honeycomb is a regular space-filling tessellation (or honeycomb) of 4-dimensional Euclidean space by regular 24-cells.

New!!: 16-cell and 24-cell honeycomb ·

## 4-polytope

In geometry, a 4-polytope (sometimes also called a polychoron, polycell, or polyhedroid) is a four-dimensional polytope.

New!!: 16-cell and 4-polytope ·

## 5-cell

In geometry, the 5-cell is a four-dimensional object bounded by 5 tetrahedral cells.

New!!: 16-cell and 5-cell ·

## 600-cell

In geometry, the 600-cell is the convex regular 4-polytope (four-dimensional analogue of a Platonic solid) with Schläfli symbol.

New!!: 16-cell and 600-cell ·

## Redirects here:

1 11 polytope, 3,3,4, 4-4 duopyramid, 4-cross polytope, 4-cross-polytope, 4-demicube, 4-demihypercube, 4-orthoplex, Demitesseract, Hexadecachoron, Order-4 tetrahedral honeycomb, Tetrahedral antiprism.

## References

[1] https://en.wikipedia.org/wiki/16-cell