#13191: Construct a 2-d fan from rays only
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Reporter: vbraun | Owner: AlexGhitza
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.2
Component: geometry | Resolution:
Keywords: toric | Work issues:
Report Upstream: N/A | Reviewers: Andrey Novoseltsev
Authors: Volker Braun | Merged in:
Dependencies: | Stopgaps:
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Changes (by novoselt):
* keywords: => toric
* reviewer: => Andrey Novoseltsev
* status: needs_review => needs_work
* component: algebraic geometry => geometry
Comment:
How about expanding one-liner
{{{
Construct a 2-dimensional fan
}}}
into
{{{
Construct the maximal 2-d fan with given ``rays``.
}}}
?
It would be nice also to have a more descriptive name, maybe
`FanFromRays`? And perhaps one example can go to the module-level
documentation to increase visibility of the constructor. (Or it can be
mentioned in the documentation of `Fan`.)
I also believe that one more case needs special treatment: two opposite
rays, in which case there are two 1-d generating cones. (So far care was
taken of no rays at all and a single ray.)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13191#comment:3>
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