Runcinated 8-simplexes


In eight-dimensional geometry, a runcinated 8-simplex is a convex uniform 8-polytope with 3rd order truncations of the regular 8-simplex.
There are eleven unique runcinations of the 8-simplex, including permutations of truncation and cantellation. The triruncinated 8-simplex and triruncicantitruncated 8-simplex have a doubled symmetry, showing order reflectional symmetry in the A8 Coxeter plane.

Runcinated 8-simplex

Alternate names

The Cartesian coordinates of the vertices of the runcinated 8-simplex can be most simply positioned in 9-space as permutations of. This construction is based on facets of the runcinated 9-orthoplex.

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Biruncinated 8-simplex

Alternate names

The Cartesian coordinates of the vertices of the biruncinated 8-simplex can be most simply positioned in 9-space as permutations of. This construction is based on facets of the biruncinated 9-orthoplex.

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Triruncinated 8-simplex

Alternate names

The Cartesian coordinates of the vertices of the triruncinated 8-simplex can be most simply positioned in 9-space as permutations of. This construction is based on facets of the triruncinated 9-orthoplex.

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Runcitruncated 8-simplex

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Biruncitruncated 8-simplex

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Triruncitruncated 8-simplex

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Runcicantellated 8-simplex

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Biruncicantellated 8-simplex

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Runcicantitruncated 8-simplex

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Biruncicantitruncated 8-simplex

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Triruncicantitruncated 8-simplex

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Related polytopes

This polytope is one of 135 uniform 8-polytopes with A8 symmetry.