#8568: can not simplify derivative of erf
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   Reporter:  gmcmanus                            |       Owner:  burcin        
 
       Type:  defect                              |      Status:  
positive_review
   Priority:  major                               |   Milestone:  sage-4.4.3    
 
  Component:  calculus                            |    Keywords:                
 
     Author:  Burcin Erocal, Karl-Dieter Crisman  |    Upstream:  N/A           
 
   Reviewer:  Karl-Dieter Crisman, Burcin Erocal  |      Merged:                
 
Work_issues:                                      |  
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Changes (by burcin):

  * status:  needs_review => positive_review
  * reviewer:  Karl-Dieter Crisman => Karl-Dieter Crisman, Burcin Erocal


Comment:

 Thanks for the quick fix!

 Your patch removes my commit message, which I tried hard to make long and
 explanatory. :) Please submit a separate patch in the future.

 I uploaded two new patches, one including your changes to the `erf`
 function, and the other my fixes for `expression_conversions.py`.

 Patches to be applied:
  * attachment:trac_8568-diff_conversion.take2.patch
  * attachment:trac_8568-erf-deriv.patch

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8568#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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