#11726: Failure to coerce 1/q into its own LaurentPolynomialRing
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Reporter: boothby | Owner: malb
Type: defect | Status: new
Priority: minor | Milestone: sage-4.7.2
Component: commutative algebra | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Consider:
{{{
sage: P.<q> = LaurentPolynomialRing(QQ)
sage: q in P
True
sage: P(q)
q
sage: q^(-1) in P
True
sage: 1/q in P
False
sage: P(q^(-1))
}}}
The last statement raises an exception.
(this is not a duplicate of #7839)
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11726>
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