#17366: for multivariate polynomial rings, degree method should convert its
argument
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Reporter: jhpalmieri | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.5
Component: algebra | Keywords:
Merged in: | Authors: John Palmieri
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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As reported at #17205:
{{{
sage: x, y = ZZ['x','y'].gens()
sage: GF(1091)['x','y'].random_element().degree(x) ### works
sage: GF(3037000453)['x','y'].random_element().degree(x) ### fails
}}}
The 2nd and 3rd lines are handled by different code, one from
`multi_polynomial_libsingular.pyx` and one from
`multi_polynomial_element.py`. The first tries to convert the argument `x`
into the parent ring, but the second does not.
The point here is to reconcile the approaches: always try to convert the
argument into the parent ring.
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Ticket URL: <http://trac.sagemath.org/ticket/17366>
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