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Rectified 8-simplexes
In eight-dimensional geometry, a rectified 8-simplex is a convex uniform 8-polytope, being a rectification of the regular 8-simplex.
There are unique 3 degrees of rectifications. Vertices of the rectified 8-simplex are located at the edge-centers of the 8-simplex. Vertices of the birectified 8-simplex are located in the triangular face centers of the 8-simplex. Vertices of the trirectified 8-simplex are located in the tetrahedral cell centers of the 8-simplex.
== Rectified 8-simplex ==
E. L. Elte identified it in 1912 as a semiregular polytope, labeling it as S.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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