Just compute the points and take their convex hull together with a ray in the "up" direction:
sage: R.<x> = ZZ[] sage: p = sum( x^i for i in range(10) ) sage: points = [ (e, randint(0,10)) for e in p.exponents() ] # replace with whatever y-coordinate you want sage: q = Polyhedron(vertices=points, rays=[(0,1)]) sage: q A 2-dimensional polyhedron in ZZ^2 defined as the convex hull of 4 vertices and 1 ray (A ray in the direction (0, 1), A vertex at (0, 8), A vertex at (9, 6), A vertex at (2, 2), A vertex at (7, 3)) On Wednesday, October 17, 2012 8:17:27 PM UTC+1, projetmbc wrote: > > Hello, > I would like to draw a kind of "inverse" Newton polygon for points. > > How can I achieve this ? > > Christophe > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-support?hl=en.
