-- -*- M2-comint -*- hash: 3847218308064279008

i1 : polyhedralComplex crossPolytope 3

o1 = PolyhedralComplex{...1...}

o1 : PolyhedralComplex

i2 : P1 = convexHull matrix {{2,2,0},{1,-1,0}};

i3 : P2 = convexHull matrix {{2,-2,0},{1,1,0}};

i4 : P3 = convexHull matrix {{-2,-2,0},{1,-1,0}};

i5 : P4 = convexHull matrix {{-2,2,0},{-1,-1,0}};

i6 : F = polyhedralComplex {P1,P2,P3,P4}

o6 = F

o6 : PolyhedralComplex

i7 : 
