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SRdeformations :: boundaryOfPolytope

boundaryOfPolytope -- The boundary of a polytope.

Synopsis

Description

Returns the boundary of a complex C which is a polytope.

i1 : R=QQ[x_0..x_4]

o1 = R

o1 : PolynomialRing
i2 : C=simplex(R)

o2 = 4: x x x x x  
         0 1 2 3 4

o2 : complex of dim 4 embedded in dim 4 (printing facets)
     equidimensional, simplicial, F-vector {1, 5, 10, 10, 5, 1}, Euler = 0
i3 : isPolytope C

o3 = true
i4 : boundaryOfPolytope C

o4 = 3: x x x x  x x x x  x x x x  x x x x  x x x x  
         0 1 2 3  0 1 2 4  0 1 3 4  0 2 3 4  1 2 3 4

o4 : complex of dim 3 embedded in dim 4 (printing facets)
     equidimensional, simplicial, F-vector {1, 5, 10, 10, 5, 0}, Euler = -1

Ways to use boundaryOfPolytope :