#6391: libGAP! -- create a Cython library interface to gap
----------------------------------------------------------------------------+
Reporter: was |
Owner: was
Type: enhancement |
Status: needs_review
Priority: major |
Milestone: sage-5.3
Component: group theory |
Resolution:
Keywords: |
Work issues:
Report Upstream: N/A |
Reviewers: Dima Pasechnik, Ivan Andrus, Volker Braun, William Stein
Authors: Dima Pasechnik, Ivan Andrus, Volker Braun, William Stein |
Merged in:
Dependencies: #13211 |
Stopgaps:
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Comment (by mmarco):
Problem persists for me. Not in a 3000 iterations loop, but in longer
loops:
{{{
sage: g=libgap('FreeGroup(2)')
sage: (a,b)=g.GeneratorsOfGroup()
sage: lis=libgap('[]')
sage: lis.Add(a^2)
sage: lis.Add(b^2)
sage: lis.Add(b*a)
sage: h=g/lis
sage: c=h.GeneratorsOfGroup()[0]
sage: for i in range(300000):
....: n=c.Order()
....:
---------------------------------------------------------------------------
ValueError Traceback (most recent call
last)
/home/mmarco/sage-5.2/<ipython console> in <module>()
/home/mmarco/sage-5.2/local/lib/python2.7/site-
packages/sage/libs/gap/element.so in
sage.libs.gap.element.GapElement_MethodProxy.__call__
(sage/libs/gap/element.c:7860)()
/home/mmarco/sage-5.2/local/lib/python2.7/site-
packages/sage/libs/gap/element.so in
sage.libs.gap.element.GapElement_Function.__call__
(sage/libs/gap/element.c:7433)()
ValueError: libGAP: Error, no method found! For debugging hints type
?Recovery from NoMethodFound
Error, no 1st choice method found for `CallFuncList' on 2 arguments
sage: i
6862
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6391#comment:82>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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