#20086: rational powers in ZZ[X] and QQ[X]
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Reporter: cheuberg | Owner:
Type: defect | Status: needs_work
Priority: major | Milestone: sage-7.2
Component: basic arithmetic | Resolution:
Keywords: | Merged in:
Authors: Clemens | Reviewers: Benjamin Hackl,
Heuberger, Vincent Delecroix, | Vincent Delecroix
Benjamin Hackl | Work issues:
Report Upstream: N/A | Commit:
Branch: public/20086 | 6f91df97a81fa094c04583314ad38cd5fd199cdb
Dependencies: | Stopgaps:
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Comment (by behackl):
Replying to [comment:64 behackl]:
> Ideas?
- Leave the code in `categories.unique_factorization_domain`, raise a
`NotImplementedError` ...
- ... if something goes wrong (current behavior), or
- ... when the calling parent is not a polynomial ring (that seems
relatively restrictive to me)
- Move it to either univariate or multivariate polynomials, call the same
method from the other one (I'm thinking of something like `nth_root =
sage.rings.polynomial.polynomial_element.nth_root` or so...)
- Move it to both univaraite and multivariate polynomial rings
I'll try to do the second one and push the branch again, let me know if
you feel that there is a better solution.
--
Ticket URL: <http://trac.sagemath.org/ticket/20086#comment:65>
Sage <http://www.sagemath.org>
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