#13236: Elements of a specific rank of a ranked poset
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Reporter: numata | Owner: tbd
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.3
Component: PLEASE CHANGE | Resolution:
Keywords: poset, combinatorics, sd40 | Work issues:
Report Upstream: N/A | Reviewers:
Authors: NUMATA, Yasuhide | Merged in:
Dependencies: | Stopgaps:
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Changes (by numata):
* status: new => needs_review
Old description:
> For a ranked poset P and its rank function r. Implement a method which
> returns iterator of elements p in P such that r(p)=k.
New description:
For a ranked poset P and its rank function r.
Implement the following:
1. method which returns iterator of elements p in P such that r(p)=k.
2. method which returns the list of elements p in P such that r(p)=k.
(Temporary names of them are elements_of_the_rank_iterator and
elements_of_the_rank)
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13236#comment:2>
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