#11431: Conversion from Singular to Sage
---------------------------+------------------------------------------------
Reporter: SimonKing | Owner: was
Type: defect | Status: needs_info
Priority: major | Milestone: sage-4.7.1
Component: interfaces | Resolution:
Keywords: | Work_issues:
Upstream: N/A | Reviewer: Martin Albrecht
Author: Simon King | Merged:
Dependencies: #11316 |
---------------------------+------------------------------------------------
Comment(by SimonKing):
I was able to build sage-4.7.1.rc1 on mark (which is supposed to be
identical with mark2). It turns out that the bug was not ''introduced''
but ''revealed'' by my patch.
With the freshly built Sage-on-mark, I get
{{{
sage: singular.eval('ring r1 =
(9,x),(a,b,c,d,e,f),(M((1,2,3,0)),wp(2,3),lp)')
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call
last)
/home/simonking/SAGE/sage-4.7.1.rc1mark/<ipython console> in <module>()
/home/simonking/SAGE/sage-4.7.1.rc1mark/local/lib/python2.6/site-
packages/sage/interfaces/singular.pyc in eval(self, x, allow_semicolon,
strip, **kwds)
548
549 if s.find("error") != -1 or s.find("Segment fault") != -1:
--> 550 raise RuntimeError, 'Singular error:\n%s'%s
551
552 if get_verbose() > 0:
RuntimeError: Singular error:
? cannot open `gftables/9`
? cannot make ring
? error occurred in or before STDIN line 25: `ring r1 =
(9,x),(a,b,c,d,e,f),(M((1,2,3,0)),wp(2,3),lp);`
? expected ring-expression. type 'help ring;'
}}}
The question is: How shall we proceed? Removing that particular test would
be a shame, since it shows that my patch can manage to parse pretty
complicated stuff. Perhaps it is possible to simplify it, so that it is
still complicated, but works on mark and t2.
In either case, I will report on sage-solaris, and probably will file a
bug report to the Singular team as well.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11431#comment:13>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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