#15345: Laurent polynomial rings don't preserve coercion
-------------------------------------+-------------------------------------
Reporter: darij | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.2
Component: algebra | Resolution:
Keywords: laurent | Merged in:
polynomials, polynomials, | Reviewers:
coercion, categories | Work issues: add doctests
Authors: Frédéric | Commit:
Chapoton, David Roe | 00393f332216d6d2b009842b02e1f9384ad0d807
Report Upstream: N/A | Stopgaps:
Branch: u/chapoton/15345 |
Dependencies: |
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Comment (by chapoton):
@David:
I was thinking to something like
{{{
sage: FractionField(LaurentPolynomialRing(QQ,'x'))
Fraction Field of Multivariate Polynomial Ring in x over Rational Field
}}}
but, yes, this can be considered as superfluous.
@Darij, yes, I agree that one should change the doc in hall_algebra in a
better way. I was hoping that somebody more knowledgeable than me about
this part of sage would do that.
--
Ticket URL: <http://trac.sagemath.org/ticket/15345#comment:24>
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