Opened 10 months ago

Last modified 2 months ago

#29811 new enhancement

PolyhedronFace: Add methods to compute cones of feasible directions and affine tangent cones

Reported by: mkoeppe Owned by:
Priority: major Milestone: sage-9.4
Component: geometry Keywords:
Cc: jipilab, gh-kliem, mjo Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

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Description

In analogy to the existing method normal_cone.

For #29806 (Gram-Brianchon formula) I only need the (affine) tangent cones of a face, tcone(P, F). See for example https://epubs.siam.org/doi/pdf/10.1137/1.9781611972443.ch6 Def 6.2.2

But for completeness it would also be nice to have the (homogeneous) tangent cone, AKA the cone of feasible directions.

Change History (3)

comment:1 Changed 8 months ago by mkoeppe

  • Milestone changed from sage-9.2 to sage-9.3

comment:2 Changed 7 months ago by mjo

  • Cc mjo added

comment:3 Changed 2 months ago by mkoeppe

  • Milestone changed from sage-9.3 to sage-9.4

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