#18860: Faster Poyhedron.graph()
---------------------------+---------------------------------
Reporter: ncohen | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.8
Component: geometry | Keywords:
Merged in: | Authors: Nathann Cohen
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies: #18779
Stopgaps: |
---------------------------+---------------------------------
With this branch, {{{polytopes.Gosset_3_21().graph()}}} takes 200ms,
against 16s before.
There is however, a mystery in the code: I hard-coded a constant '26'
which I expected to be equal to 'd-1'. If we can solve this mistery, we
get a speedup.
This 26 has been picked so that the following works:
{{{
sage: g=graphs.GossetGraph()
sage: g.is_isomorphic(polytopes.Gosset_3_21().graph())
True
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/18860>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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