#8386: move iet from sage.combinat to sage.dynamics
--------------------------------------+-------------------------------------
Reporter: vdelecroix | Owner: vdelecroix
Type: defect | Status: positive_review
Priority: major | Milestone: sage-5.10
Component: combinatorics | Resolution:
Keywords: iet, combinatorics | Work issues:
Report Upstream: N/A | Reviewers: Vincent Delecroix
Authors: Frédéric Chapoton | Merged in:
Dependencies: #12643, #13677 | Stopgaps:
--------------------------------------+-------------------------------------
Changes (by {'newvalue': u'Fr\xe9d\xe9ric Chapoton', 'oldvalue': u'Vincent
Delecroix'}):
* status: needs_review => positive_review
* work_issues: save the new datatype ? =>
* author: Vincent Delecroix => Frédéric Chapoton
* reviewer: Frédéric Chapoton => Vincent Delecroix
Old description:
> 1) The library for iet is moved from sage.combinat.iet to
> sage.dynamics.interval_exchanges which seems more natural.
>
> 2) The old version for iet uses two kinds of datatype for reduced and
> labeled versions. The new implementation makes them coherent.
>
> 3) As a by product of 2), the following behavior is corrected
> {{{
> sage: p = iet.Permutation('a b','b a')
> sage: q = iet.Permutation('b a','a b')
> sage: p == q
> True
> }}}
>
> Apply
> * [attachment:trac_8386_really_just_moving-fc.patch]
> * [attachment:trac_8386_big_clean_fc.patch]
New description:
1) The library for iet is moved from sage.combinat.iet to
sage.dynamics.interval_exchanges which seems more natural.
We postpone 2) and 3) below to #14683
2) The old version for iet uses two kinds of datatype for reduced and
labeled versions. The new implementation makes them coherent.
3) As a by product of 2), the following behavior is corrected
{{{
sage: p = iet.Permutation('a b','b a')
sage: q = iet.Permutation('b a','a b')
sage: p == q
True
}}}
Apply
* [attachment:trac_8386_really_just_moving-fc.patch]
* [attachment:trac_8386_big_clean_fc.patch]
--
Comment:
Thanks Frederic.
I put you as an author and me as a reviewer as it is more like that now. I
postponed the modification of the implementation to #14683.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8386#comment:34>
Sage <http://www.sagemath.org>
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