#19676: Bug in Polynomial_element_generic_sparse.gcd
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Reporter: bruno | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.10
Component: basic arithmetic | Keywords: polynomial, gcd
Merged in: | Authors: Bruno Grenet
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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In ticket #15790, I introduced the following bug:
{{{#!python
sage: R.<x> = PolynomialRing(ZZ, sparse=True)
sage: S.<y> = R[]
sage: x.gcd(y)
x
sage: x.gcd(3)
NotImplementedError (most recent call last)
...
NotImplementedError:
}}}
The bug comes from not testing the parents.
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Ticket URL: <http://trac.sagemath.org/ticket/19676>
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