#6465: [with patch, needs work] Derivative D acts wrongly on symbolic 
integration
-----------------------+----------------------------------------------------
 Reporter:  gmhossain  |       Owner:                                      
     Type:  defect     |      Status:  new                                 
 Priority:  critical   |   Milestone:                                      
Component:  symbolics  |    Keywords:                                      
 Reviewer:  Tim Dumol  |      Author:  Burcin Erocal, Golam Mortuza Hossain
   Merged:             |  
-----------------------+----------------------------------------------------
Changes (by timdumol):

  * reviewer:  => Tim Dumol


Comment:

 The sudden API change probably merits a deprecation warning, as kcrisman
 said. Also:

 Doctest failure:

 {{{

 sage -t -long devel/sage/sage/libs/ginac/decl.pxi
          [0.1 s]
 sage -t -long devel/sage/sage/misc/functional.py
 **********************************************************************
 File "/opt/sage-bin/devel/sage-deriv/sage/misc/functional.py", line 412:
     sage: integral(exp(-x), (x, 1, oo))
 Expected:
     e^(-1)
 Got:
     gamma_incomplete(1, 1)
 **********************************************************************
 1 items had failures:
    1 of  15 in __main__.example_25
 ***Test Failed*** 1 failures.
 For whitespace errors, see the file /opt/sage-
 bin/tmp/.doctest_functional.py
          [9.3 s]

 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6465#comment:4>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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