#11643: Maxima precision
---------------------------+------------------------------------------------
Reporter: eviatarbach | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-4.7.2
Component: interfaces | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
---------------------------+------------------------------------------------
The Sage–Maxima interface currently does not maintain precision:
{{{
sage: a = RealField(200)(8.987551787368175506591796875e9)
sage: a
8.9875517873681755065917968750000000000000000000000000000000e9
sage: var('y')
y
sage: b = (a * x).mul(y, hold=True)
sage: b
(8.9875517873681755065917968750000000000000000000000000000000e9*x)*y
sage: c = (b / (x * y)).simplify()
sage: c
8987551787.37
sage: RealField(200)(c)
8.9875517873681697845458984375000000000000000000000000000000e9
}}}
See here for more details: http://groups.google.com/group/sage-
devel/browse_thread/thread/3598040d05b8413c
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11643>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
