#17435: Cythonise path algebra elements
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Reporter: SimonKing | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.5
Component: algebra | Resolution:
Keywords: path algebra | Merged in:
elements | Reviewers:
Authors: Simon King | Work issues:
Report Upstream: N/A | Commit:
Branch: | 27b6ea96786c16b60489b46e7835c7af986c5584
u/SimonKing/cythonise_path_algebra_elements| Stopgaps:
Dependencies: #16453 |
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Changes (by SimonKing):
* status: needs_work => needs_review
Comment:
Fixed. The problem was that under certain circumstances, the computation
`c = a - b` has put the ''negative'' of a term of `a` into `c`, where it
should have put a copy of the term.
Now the tests work. I also included a comparison with the letterplace
implementation of free associative algebras. Letterplace is faster, but it
is restricted to homogeneous elements.
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Ticket URL: <http://trac.sagemath.org/ticket/17435#comment:9>
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