#9250: Bug in crystal code
------------------------------+---------------------------------------------
Reporter: aschilling | Owner: sage-combinat
Type: defect | Status: positive_review
Priority: major | Milestone:
Component: combinatorics | Keywords: crystals
Author: Anne Schilling | Upstream: N/A
Reviewer: Daniel Bump | Merged:
Work_issues: |
------------------------------+---------------------------------------------
Changes (by bump):
* status: needs_review => positive_review
* reviewer: => Daniel Bump
Old description:
> This currently breaks:
>
> sage: B=KirillovReshetikhinCrystal(['D',5,1], 3,1)
> sage: B[0].e(0)
>
> This has to do with the method intermediate_shape for plus/minus
> diagrams.
New description:
This currently breaks:
{{{
sage: B=KirillovReshetikhinCrystal(['D',5,1], 3,1)
sage: B[0].e(0)
}}}
This has to do with the method intermediate_shape for plus/minus diagrams.
--
Comment:
After the patch, passes {{{sage -testall}}}.
Fixes the crash mentioned in the Description.
Includes doctest.
Apparently the intermediate_shape method of PMDiagram presumed
that self.n was 2.
This one-line fix is obviously correct.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9250#comment:2>
Sage <http://www.sagemath.org>
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