#12278: misleading (outdated) docstring in partitions_restricted
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Reporter: AlexGhitza | Owner: sage-combinat
Type: defect | Status: new
Priority: minor | Milestone: sage-5.4
Component: combinatorics | Resolution:
Keywords: partitions docstring | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by andrew.mathas):
> Edit: You could use `ending=[2]` , which is currently broken. {{{ sage:
Partitions(4, ending=[2] ).list() [[4] , [3, 1], [2, 2], [2, 1, 1], [1, 1,
1, 1]] }}}
I don't understand the manual entry for `ending` which says
{{{
If "ending=p" is passed, then the combinatorial class of partitions
at most p in lexicographic order is returned.
}}}
but in any case the set that I want when `e=3` can currently be obtained
using
{{{
sage: [mu for mu in Partitions(4, min_slope=-2) if mu[-1]<3]
[[3, 1], [2, 2], [2, 1, 1], [1, 1, 1, 1]]
}}}
Checking that the last part is strictly less than `e` is enough in
general.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12278#comment:7>
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