#12708: limit not correctly computed by maxima
----------------------------------------------------------------+-----------
       Reporter:  ppurka                                        |         
Owner:  burcin  
           Type:  defect                                        |        
Status:  new     
       Priority:  critical                                      |     
Milestone:  sage-5.0
      Component:  calculus                                      |    
Resolution:          
       Keywords:  maxima limit                                  |   Work 
issues:          
Report Upstream:  Fixed upstream, but not in a stable release.  |     
Reviewers:          
        Authors:                                                |     Merged 
in:          
   Dependencies:                                                |      
Stopgaps:  todo    
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Changes (by ppurka):

  * upstream:  Reported upstream. Little or no feedback. => Fixed upstream,
               but not in a stable release.
  * stopgaps:  => todo


Old description:

> This is taken from the google notebook bug report page.
> {{{
> sage: limit(tanh(x),x=0)
> x
> }}}
> On the other hand, this works
> {{{
> sage: limit(tanh(x),x=0,taylor=True)
> 0
> }}}
> It is a bug in Maxima, and is still present in sage-5.0beta8. This beta
> apparently has maxima-5.26, the latest released version of Maxima.

New description:

 This is taken from the google notebook bug report page.
 {{{
 sage: limit(tanh(x),x=0)
 x
 }}}
 On the other hand, this works
 {{{
 sage: limit(tanh(x),x=0,taylor=True)
 0
 }}}
 It is a bug in Maxima, and is still present in sage-5.0beta8. This beta
 apparently has maxima-5.26, the latest released version of Maxima.

 ----

 Update: It has been fixed upstream. We should upgrade to the next stable
 version of Maxima when it is released.

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12708#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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