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Truncated 7 cubes

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In seven-dimensional geometry, a truncated 7-cube is a convex uniform 7-polytope, being a truncation of the regular 7-cube.

Contents

There are 6 truncations for the 7-cube. Vertices of the truncated 7-cube are located as pairs on the edge of the 7-cube. Vertices of the bitruncated 7-cube are located on the square faces of the 7-cube. Vertices of the tritruncated 7-cube are located inside the cubic cells of the 7-cube. The final three truncations are best expressed relative to the 7-orthoplex.

Alternate names

  • Truncated hepteract (Jonathan Bowers)
  • Coordinates

    Cartesian coordinates for the vertices of a truncated 7-cube, centered at the origin, are all sign and coordinate permutations of

    (1,1+√2,1+√2,1+√2,1+√2,1+√2,1+√2)

    The truncated 7-cube, is sixth in a sequence of truncated hypercubes:

    Alternate names

  • Bitruncated hepteract (Jonathan Bowers)
  • Coordinates

    Cartesian coordinates for the vertices of a bitruncated 7-cube, centered at the origin, are all sign and coordinate permutations of

    (±2,±2,±2,±2,±2,±1,0)

    The bitruncated 7-cube is fifth in a sequence of bitruncated hypercubes:

    Alternate names

  • Tritruncated hepteract (Jonathan Bowers)
  • Coordinates

    Cartesian coordinates for the vertices of a tritruncated 7-cube, centered at the origin, are all sign and coordinate permutations of

    (±2,±2,±2,±2,±1,0,0)

    References

    Truncated 7-cubes Wikipedia