#7085: fix this laurent series coercion bug
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Reporter: was | Owner: somebody
Type: defect | Status: new
Priority: major | Milestone: sage-4.1.3
Component: basic arithmetic | Keywords:
Reviewer: | Author:
Merged: |
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{{{
> Ok, I am completely baffled by the following situation:
>
> sage: A.<z>=LaurentSeriesRing(QQ)
> sage: B.<w>=LaurentSeriesRing(A)
> sage: z/w
> 1
> Maybe you will agree this is a bug?
That's definitely a coercion bug. You can workaround it like this:
sage: sage: A.<z>=LaurentSeriesRing(QQ)
sage: sage: B.<w>=LaurentSeriesRing(A)
sage: z/w
1
sage: (1/w) * z
z*w^-1
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7085>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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