Truncated 6-cubes explained

In six-dimensional geometry, a truncated 6-cube (or truncated hexeract) is a convex uniform 6-polytope, being a truncation of the regular 6-cube.

There are 5 truncations for the 6-cube. Vertices of the truncated 6-cube are located as pairs on the edge of the 6-cube. Vertices of the bitruncated 6-cube are located on the square faces of the 6-cube. Vertices of the tritruncated 6-cube are located inside the cubic cells of the 6-cube.

Truncated 6-cube

bgcolor=#e7dcc3 colspan=2Truncated 6-cube
Typeuniform 6-polytope
ClassB6 polytope
Schläfli symbolt
Coxeter-Dynkin diagrams
5-faces76
4-faces464
Cells1120
Faces1520
Edges1152
Vertices384
Vertex figure
v
Coxeter groupsB6, [3,3,3,3,4]
Propertiesconvex

Alternate names

Construction and coordinates

The truncated 6-cube may be constructed by truncating the vertices of the 6-cube at

1/(\sqrt{2}+2)

of the edge length. A regular 5-simplex replaces each original vertex.

The Cartesian coordinates of the vertices of a truncated 6-cube having edge length 2 are the permutations of:

\left(\pm1,\pm(1+\sqrt{2}),\pm(1+\sqrt{2}),\pm(1+\sqrt{2}),\pm(1+\sqrt{2}),\pm(1+\sqrt{2})\right)

Related polytopes

The truncated 6-cube, is fifth in a sequence of truncated hypercubes:

Bitruncated 6-cube

bgcolor=#e7dcc3 colspan=2Bitruncated 6-cube
Typeuniform 6-polytope
ClassB6 polytope
Schläfli symbol2t
Coxeter-Dynkin diagrams
5-faces
4-faces
Cells
Faces
Edges
Vertices
Vertex figure
v
Coxeter groupsB6, [3,3,3,3,4]
Propertiesconvex

Alternate names

Construction and coordinates

The Cartesian coordinates of the vertices of a bitruncated 6-cube having edge length 2 are the permutations of:

\left(0,\pm1,\pm2,\pm2,\pm2,\pm2\right)

Related polytopes

The bitruncated 6-cube is fourth in a sequence of bitruncated hypercubes:

Tritruncated 6-cube

bgcolor=#e7dcc3 colspan=2Tritruncated 6-cube
Typeuniform 6-polytope
ClassB6 polytope
Schläfli symbol3t
Coxeter-Dynkin diagrams
5-faces
4-faces
Cells
Faces
Edges
Vertices
Vertex figure
v[3]
Coxeter groupsB6, [3,3,3,3,4]
Propertiesconvex

Alternate names

Construction and coordinates

The Cartesian coordinates of the vertices of a tritruncated 6-cube having edge length 2 are the permutations of:

\left(0, 0,\pm1,\pm2,\pm2,\pm2\right)

Images

Related polytopes

These polytopes are from a set of 63 Uniform 6-polytopes generated from the B6 Coxeter plane, including the regular 6-cube or 6-orthoplex.

References

External links

Notes and References

  1. Klitzing, (o3o3o3o3x4x - tox)
  2. http://www.bendwavy.org/klitzing/incmats/botox.htm Klitzing, (o3o3o3x3x4o - botox)
  3. https://bendwavy.org/klitzing/incmats/squete.htm
  4. Klitzing, (o3o3x3x3o4o - xog)