#19333: RIF roots are sometimes too precise
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Reporter: jdemeyer | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.9
Component: basic arithmetic | Keywords:
Merged in: | Authors: Jeroen Demeyer
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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The root finder in `RIF` sometimes returns roots which have too much
precision:
{{{
sage: R.<x> = QQ[]
sage: parent((x-1).roots(RIF)[0][0])
Real Interval Field with 106 bits of precision
}}}
The answer should have 53 bits of precision.
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Ticket URL: <http://trac.sagemath.org/ticket/19333>
Sage <http://www.sagemath.org>
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