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cross polytope (thing)
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thing
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by
artemis entreri
Fri Feb 09 2001 at 21:33:12
In
combinatorics
, a
cross polytope
is a
regular polytope
, with the
convex hull
of the
point
s formed by
permuting
the
coordinate
s of (1,0,0,,...,0) and (-1,0,0,,...,0). In
three dimensions
, this is the
octahedron
.
--back to
combinatorics
--
regular polytope
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Combinatorics