#7377: Symbolic Ring to Maxima via EclObject
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   Reporter:  nbruin                                                   |       
Owner:  nbruin      
       Type:  enhancement                                              |      
Status:  needs_work  
   Priority:  major                                                    |   
Milestone:  sage-feature
  Component:  symbolics                                                |    
Keywords:              
     Author:  Nils Bruin, Jean-Pierre Flori                            |    
Upstream:  N/A         
   Reviewer:  Jean-Pierre Flori, François Bissey, Karl-Dieter Crisman  |      
Merged:              
Work_issues:                                                           |  
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Comment(by kcrisman):

 Replying to [comment:32 fbissey]:
 > ecl-10.4.1, maxima-5.23.2:[[BR]]
 > sage -t --verbose -force_lib "devel/sage/sage/functions/special.py"
 times out because it stops:
 > {{{
 > Trying:
 >     elliptic_e(arccoth(Integer(1)), x**Integer(2)*e)###line 535:_sage_
 >>> elliptic_e(arccoth(1), x^2*e)
 > Expecting:
 >     elliptic_e(arccoth(1), x^2*e)
 > The number 1 isn't in the domain of acoth

 Hmm, this must have to do with 5.23.2, because "Here arccoth doesn't have
 1 in its domain, so we just hold the expression:" in the past.  So Maxima
 must have improved something here.

 {{{
     sage: integrate(ceil(x^2 + floor(x)), x, 0, 5)    # todo: Mathematica
 can do this
 Expected:
     integrate(ceil(x^2) + floor(x), x, 0, 5)
 Got:
     155/3
 }}}
 If this is right, that's good.  No idea what's going on with the next one.

 In general, I'm seeing a lot of stuff that's related to having the newer
 Maxima.  I think that we should either upgrade Maxima first, and take care
 of things related to better error handling/functionality in Maxima, and
 then address this ticket separately, OR do this first with our current
 Maxima and then upgrade Maxima.    My preference would be to upgrade
 Maxima first, assuming one can do that relatively easily (would ECL also
 have to be upgraded?  It's annoying that one has to do them simultaneously
 at times, at least with some of my slower test machines.).

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7377#comment:34>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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