#12171: Update MPFI to 1.5.0
---------------------------+------------------------------------------------
Reporter: mhansen | Owner: tbd
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.8
Component: packages | Keywords: sd35
Work_issues: | Upstream: N/A
Reviewer: | Author: Mike Hansen
Merged: | Dependencies:
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Changes (by zimmerma):
* cc: cwitty, robertwb (added)
Comment:
the problem from comment [comment:9] seems to only apply on 32-bit
machines. I'll first try to
solve problems on 64-bit. There is one strange thing with the patch
applied:
{{{
sage: x = AA(2).sqrt()^2
sage: (x-2).real_exact(RR)
0.000000000000000
sage: x.real_exact(RR)
2.00000000000000
sage: (x-2).real_exact(RR)
-0.000000000000000
}}}
The MPFI developers claim that in MPFI 1.5 the sign of 0 is irrelevant,
but this is still a
non-deterministic issue.
Paul
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12171#comment:11>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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