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Truncated 5 cubes

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Truncated 5-cubes

In five-dimensional geometry, a truncated 5-cube is a convex uniform 5-polytope, being a truncation of the regular 5-cube.

Contents

There are four unique truncations of the 5-cube. Vertices of the truncated 5-cube are located as pairs on the edge of the 5-cube. Vertices of the bitruncated 5-cube are located on the square faces of the 5-cube. The third and fourth truncations are more easily constructed as second and first truncations of the 5-orthoplex.

Alternate names

  • Truncated penteract (Acronym: tan) (Jonathan Bowers)
  • Construction and coordinates

    The truncated 5-cube may be constructed by truncating the vertices of the 5-cube at 1 / ( 2 + 2 ) of the edge length. A regular 5-cell is formed at each truncated vertex.

    The Cartesian coordinates of the vertices of a truncated 5-cube having edge length 2 are all permutations of:

    ( ± 1 ,   ± ( 1 + 2 ) ,   ± ( 1 + 2 ) ,   ± ( 1 + 2 ) ,   ± ( 1 + 2 ) )

    Images

    The truncated 5-cube is constructed by a truncation applied to the 5-cube. All edges are shortened, and two new vertices are added on each original edge.

    The truncated 5-cube, is fourth in a sequence of truncated hypercubes:

    Alternate names

  • Bitruncated penteract (Acronym: bittin) (Jonathan Bowers)
  • Construction and coordinates

    The bitruncated 5-cube may be constructed by bitruncating the vertices of the 5-cube at 2 of the edge length.

    The Cartesian coordinates of the vertices of a bitruncated 5-cube having edge length 2 are all permutations of:

    ( 0 ,   ± 1 ,   ± 2 ,   ± 2 ,   ± 2 )

    The bitruncated 5-cube is third in a sequence of bitruncated hypercubes:

    This polytope is one of 31 uniform 5-polytope generated from the regular 5-cube or 5-orthoplex.

    References

    Truncated 5-cubes Wikipedia


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