#15345: Laurent polynomial rings don't preserve coercion
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Reporter: darij | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.1
Component: algebra | Resolution:
Keywords: laurent polynomials, | Merged in:
polynomials, coercion, categories | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by chapoton):
I have just been hit by a similar problem:
{{{
sage: R = LaurentPolynomialRing(ZZ, 'x')
sage: T = PolynomialRing(ZZ, 'x')
sage: R.gen() + T.gen()
2*x
sage: R.gen() + FractionField(T).gen()
BOOM !
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/15345#comment:3>
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