Changes between Version 1 and Version 2 of Ticket #17215
 Timestamp:
 10/24/14 22:13:31 (8 years ago)
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Ticket #17215

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Normal vector to a polyhedron at a face...
toBounding lines for polyhedra

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Ticket #17215 – Description
v1 v2 1 ... lying in the subspace that contains the polyhedron. Is there a simple way to get it in Sage? Otherwise, this should be added. 1 As far as I recall, a point v on a convex polyhedron P is a vertex of P if and only if there exists a vector w in the linear span of P such that no real number p satisfies v + pw \in P. Knowing such a w is a good certificate for v being a vertex. 2 3 Do we have a method for finding such a w ?