#16834: Change ring fails for affine morphisms.
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Reporter: gjorgenson | Owner: gjorgenson
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-6.4
Component: algebraic | Resolution:
geometry | Merged in:
Keywords: | Reviewers: Ben Hutz
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | 0a29b1b9788b97fa7bbd20d9443afe7118be673a
u/gjorgenson/ticket/16834 | Stopgaps:
Dependencies: |
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Description changed by gjorgenson:
Old description:
> When calling the change ring function on affine morphisms an index out of
> bounds error occurs:
>
> {{{
>
> sage: A.<x> = AffineSpace(QQ,1)
> sage: h = Hom(A,A)
> sage: f = h([1])
> sage: f.change_ring(ZZ)
>
> }}}
New description:
When calling the change ring function on affine morphisms an index out of
bounds error occurs:
{{{
sage: A.<x,y,z> = AffineSpace(RR,3)
sage: h = Hom(A,A)
sage: f = h([x^2+1.5,y^3,z^5-2.0])
sage: f.change_ring(CC)
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/16834#comment:7>
Sage <http://www.sagemath.org>
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