#14542: Implement arithmetic product of cycle index series
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Reporter: agd | Owner: sage-combinat
Type: enhancement | Status: positive_review
Priority: major | Milestone: sage-5.11
Component: combinatorics | Resolution:
Keywords: species, cycle index | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: u/agd/cis_arith_prod | Dependencies:
Stopgaps: |
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Comment (by agd):
Replying to [comment:11 darij]:
> You want {{{self.parent().term}}}, not {{{self.parent.term}}}. The fact
that {{{self.parent(res_in_seq)}}} works (and is equivalent to
{{{self.parent()(res_in_seq)}}}) is due to syntactic sugar.
Whoops! This is what I get from trying to write code from a browser after
a day of workshops.
>
> You are correct that {{{self.parent.term(res, n)}}} works and makes more
sense, but it's also 3 times slower than {{{self.parent(res_in_seq)}}}
(not sure why), so I'd keep what I've written.
How strange! I'll add this to my pile of things to investigate once I get
back on my feet. Using {{{res_in_seq}}} for this is fine for now, though.
Once again, thanks for the feedback and the review!
--
Ticket URL: <http://trac.sagemath.org/ticket/14542#comment:14>
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