#7958: Conversion of rationals into the fraction field of integer polynomials
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Reporter: spancratz | Owner: robertwb
Type: defect | Status: needs_work
Priority: minor | Milestone: sage-4.3.2
Component: coercion | Keywords:
Work_issues: | Author: spancratz
Upstream: N/A | Reviewer:
Merged: |
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Changes (by wjp):
* status: needs_review => needs_work
Comment:
Your fix does work great for QQ, but this is actually a more general issue
than just QQ:
{{{
sage: _.<x> = ZZ[]
sage: K.<a> = NumberField(x^2-2)
sage: R.<b> = K.ring_of_integers()
sage: S.<y> = R[]
sage: F = FractionField(S)
sage: F(1)/F(a)
1/a
sage: F(1/a)
*boom*
}}}
And a minor issue: I think the comment about QQ should be a code comment
rather than in the doctest, since it might now confuse users (who might
think they need to handle QQ specially themselves).
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7958#comment:3>
Sage <http://www.sagemath.org>
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