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