#10750: Fix solve so that additional args are properly handled
-------------------------------+--------------------------------------------
Reporter: kcrisman | Owner: burcin
Type: defect | Status: needs_work
Priority: major | Milestone:
Component: symbolics | Keywords: solve, maxima, Maxima, sd35.5
Work_issues: error in Maxima | Upstream: N/A
Reviewer: Paul Zimmermann | Author: John Palmieri
Merged: | Dependencies:
-------------------------------+--------------------------------------------
Changes (by zimmerma):
* keywords: solve, maxima, Maxima => solve, maxima, Maxima, sd35.5
* reviewer: => Paul Zimmermann
* status: needs_review => needs_work
* work_issues: => error in Maxima
Comment:
after importing the patch on top of sage-4.8.apha6, I get:
{{{
Loading Sage library. Current Mercurial branch is: 10750
sage: s=list(var('s_%d' % i) for i in range(3));
sage: var('x y z');
sage: print solve([],s_0,s_1,s_2)
[
[s_0 == c1, s_1 == c2, s_2 == c3]
]
sage: print solve([z==z],s_0,s_1,s_2)
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call
last)
/localdisk/tmp/sage-4.8.alpha6/<ipython console> in <module>()
/localdisk/tmp/sage-4.8.alpha6/local/lib/python2.6/site-
packages/sage/symbolic/relation.pyc in solve(f, *args, **kwds)
736 raise
737
--> 738 if len(s)==0: # if Maxima's solve gave no solutions, try its
to_poly_solve
739 try:
740 s = m.to_poly_solve(variables)
/localdisk/tmp/sage-4.8.alpha6/local/lib/python2.6/site-
packages/sage/interfaces/maxima_abstract.pyc in __len__(self)
1618 """
1619 P = self._check_valid()
-> 1620 return int(P.eval('length(%s)'%self.name()))
1621
1622 def dot(self, other):
/localdisk/tmp/sage-4.8.alpha6/local/lib/python2.6/site-
packages/sage/interfaces/maxima_lib.pyc in _eval_line(self, line, locals,
reformat, **kwds)
418 statement = line[:ind_semi]
419 line = line[ind_semi+1:]
--> 420 if statement: result = ((result + '\n') if result
else '') + max_to_string(maxima_eval("#$%s$"%statement))
421 else:
422 statement = line[:ind_dollar]
/localdisk/tmp/sage-4.8.alpha6/local/lib/python2.6/site-
packages/sage/libs/ecl.so in sage.libs.ecl.EclObject.__call__
(sage/libs/ecl.c:4732)()
/localdisk/tmp/sage-4.8.alpha6/local/lib/python2.6/site-
packages/sage/libs/ecl.so in sage.libs.ecl.ecl_safe_apply
(sage/libs/ecl.c:2838)()
RuntimeError: ECL says: Error executing code in Maxima: length: argument
cannot be a symbol; found all
}}}
Paul
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10750#comment:11>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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