#4142: limit bug: should be -Infinity, but gives +Infinity
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 Reporter:  ddrake    |       Owner:  burcin    
     Type:  defect    |      Status:  new       
 Priority:  major     |   Milestone:  sage-4.1.2
Component:  calculus  |    Keywords:            
 Reviewer:            |      Author:            
   Merged:            |  
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Comment(by kcrisman):

 As it happens, this is still a problem in Sage 4.1.x - but the problem is
 somewhat more subtle than just some Maxima bug, or Sage incorrectly
 parsing Maxima output:
 {{{
 (%i1) limit(-x/sqrt(1-x^2),x,1,minus);
 (%o1)                                            infinity
 }}}
 BUT Maxima's infinity is not Sage's infinity; it is the complex infinity!
 If the answer is +infinity, Maxima would return 'inf'.   I've asked the
 Maxima list about this, so we'll see what happens.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4142#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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