#9220: Upredictable parent for polynomial evaluation
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Reporter: nbruin | Owner: robertwb
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.4.4
Component: coercion | Keywords:
Author: Nils Bruin | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by nbruin):
Attached patch is efficient when evaluation point has the same parent. I
guess previously some efficiency was gained when a point was in the base
ring as well (the result was subsequently recognised as a constant and
coerced back?) by used libsingular evaluation directly. This is lost with
attached patch. This probably means that this patch solves #8502
independently as well.
To reviewer or merger: feel free to change patch. I won't be touching the
code anymore.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9220#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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