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D.13.1.57 newtonPolytope

Procedure from library gfan.lib (see gfan_lib).

Usage:
newtonPolytope(f); f poly

Return:
polytope, the convex hull of all exponent vectors of f

Example:
 
LIB "gfan.lib";
ring r;
poly f=x+y+z;
polytope p=newtonPolytope(f);
p;
==> AMBIENT_DIM
==> 3
==> INEQUALITIES
==> 0,0,0,1,
==> 0,0,1,0,
==> 0,1,0,0
==> EQUATIONS
==> 1,-1,-1,-1
==>