#18194: Speedup of calculation of Macdonald H and Ht bases
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Reporter: zabrocki | Owner:
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-6.7
Component: combinatorics | Resolution:
Keywords: sf, days67, sage- | Merged in:
combinat | Reviewers: Travis Scrimshaw
Authors: Mike Zabrocki | Work issues:
Report Upstream: N/A | Commit:
Branch: | 0a09d0f615166b8f65af971a61805663e81f3ff2
public/combinat/mac_speedup-18194 | Stopgaps:
Dependencies: |
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Comment (by tscrim):
A combination of "it's bugging me" and some clever testing made me realize
that `to_symmetric_function` is returning compositions instead of
partitions! Now why this is just being realized with my recent set of
changes, I have no idea. Anyways, it's fixed and I'm okay with the state
of things. At least, I couldn't figure out a way to twist out some more
speed without doing some moderate cythonization and changing fraction
field elements. There might be some gain from doing some of the arithmetic
on the polynomial ring and then converting the numerator and denominator
to the fraction field, but I'm too hungry and don't know if there will be
a sizable enough gain to warrant such an experiment (at this point).
--
Ticket URL: <http://trac.sagemath.org/ticket/18194#comment:42>
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