> A chosen set of points is convex if it is equal to its convex hull. So all > you have to do is compute the hull and compare with it.
I think my problem is actually doing the comparison. So I have this chosen set of points which I don't know is convex. I compute its convex hull. Now how do I compare these two objects? Dmitri On Feb 23, 4:29 pm, Volker Braun <vbraun.n...@gmail.com> wrote: > On Thursday, February 24, 2011 12:12:12 AM UTC, Dmitri wrote: > > > [...] The intersection of all these equations forms a lattice > > polytope (finite and bounded). I want to know if that polytope is > > convex or not. > > I'm confused. Intersections of convex sets are convex. > > > [...] One question that I'm > > interested is what results when we take the union of two tops. One > > obvious question to ask is whether it's convex or not. > > A chosen set of points is convex if it is equal to its convex hull. So all > you have to do is compute the hull and compare with it. > > Volker -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
