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by JQX
20 Jun 2016, 20:44
Forum: Helpdesk
Topic: Finding a convex decomposition of a point in a polytope
Replies: 1
Views: 3470

Finding a convex decomposition of a point in a polytope

A simple question: If v is a point in a polytope P, I would like to find an explicit convex combination of the vertices of P which equals v. Additionally suppose that we want to find an optimal decomposition into d+1 points, where d is the dimension of P. Are there functions in polymake that do thes...
by JQX
25 Apr 2015, 03:43
Forum: Installing polymake
Topic: Installing Polymake for dummies
Replies: 1
Views: 4559

Installing Polymake for dummies

I ran polymake on my mac using the "bundle for perl" thingie. That was easy and painless. Now I'm trying to get it to run on ubuntu, and I'm lost on how to even begin to compile it. My computer skills are...lacking, to say the least, compared to what is assumed here http://polymake.org/dok...
by JQX
08 Nov 2014, 20:58
Forum: Helpdesk
Topic: Help with importing lists
Replies: 6
Views: 6783

Re: Help with importing lists

One further question: As a test I'm trying to get the facet description of a polytope in R^81, with about 600 vertices. The computation does not finish after about 5 hours. Now, I know that the polytope is not full dimensional, actually I know that it has dimension 48, so I can reduce the size of th...
by JQX
04 Nov 2014, 15:55
Forum: Helpdesk
Topic: Help with importing lists
Replies: 6
Views: 6783

Re: Help with importing lists

Well thanks guys for your most useful answers. Much obliged.
by JQX
03 Nov 2014, 06:50
Forum: Helpdesk
Topic: Help with importing lists
Replies: 6
Views: 6783

Help with importing lists

Hello everyone! I'm new both to the forum and to polymake, and I have a quick question: I need to define a polytope in terms of vertices. But both the dimension of the ambient space (R^100 ish) and the number of vertices is huge. Is there a way to import data from, say, a text file? Or can anyone su...

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