#20086: rational powers in ZZ[X] and QQ[X]
-------------------------------------+-------------------------------------
Reporter: cheuberg | Owner:
Type: defect | Status: needs_review
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 | 8cef2c7bce3fc7379f95d6c7c3bd6fb21e64c0ab
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Comment (by vdelecroix):
Since now the code is in the polynomial ring you can simplify it a lot.
Just remove all of
{{{
u = f.unit()
if u.is_one():
...
else:
....
}}}
and do
{{{
u = self.base_ring()(f.unit())
try:
u.nth_root(n)
except AttributeError:
raise NotImplementedError
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/20086#comment:71>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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