#10803: critical bug in real_roots
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Reporter: zimmerma | Owner: jason, jkantor
Type: defect | Status: new
Priority: blocker | Milestone: sage-4.6.2
Component: numerical | Keywords: real roots
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by dsm):
Note that it's not just that real_roots hasn't fully resolved the roots,
and so an interval contains more than one root with the right multiplicity
being reported, which would also lower len(real_roots(f)). In the above
case two roots are simply missing, as can be confirmed by looking at the
reported roots themselves.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10803#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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