#7377: Symbolic Ring to Maxima via EclObject
-------------------------+--------------------------------------------------
Reporter: nbruin | Owner: nbruin
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.7.1
Component: symbolics | Resolution:
Keywords: | Author: Robert Bradshaw, Nils Bruin,
Jean-Pierre Flori, Karl-Dieter Crisman
Upstream: N/A | Reviewer: Jean-Pierre Flori, François Bissey,
Karl-Dieter Crisman, Nils Bruin
Merged: | Work_issues: investigate pexpect refactoring
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Comment(by jpflori):
I've search through the logs for "interfaces" (the main directory wa are
concerned with), "calculus" and "symbolic".
The only noise I found so far is:
{{{
File "/usr/share/sage/devel/sage-main/sage/symbolic/expression.pyx", line
7728:
sage: f = 1 + x + sqrt(x+2); f.find_root(-2,10)
Expected:
-1.6180339887498949
Got:
-1.618033988749895
#0: simplify_sum(expr='sum(q^k,k,0,inf))
#1: simplify_sum(expr=a*'sum(q^k,k,0,inf))
}}}
and:
{{{
File "/usr/share/sage/devel/sage-main/sage/calculus/calculus.py", line
223:
sage: float(z)
Expected:
4.6467837624329356
Got:
4.646783762432936
#0: simplify_sum(expr='sum(q^k,k,0,inf))
#1: simplify_sum(expr=a*'sum(q^k,k,0,inf))
}}}
Which does not cause any problem if the doctest passes (i.e. if we set the
expected answer to the correct precision).
It's caused in some way by ECL (I've tried to redirect as much as possible
toward "/dev/null" slightly modifying the first version of the patches but
could not get better result, I'm no expert in Lisp) and not by the
refactoring of expect.py into expect.py/interface.py
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7377#comment:163>
Sage <http://www.sagemath.org>
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