#17109: Wrong indefinite integral of some odd functions between opposite 
endpoints
-------------------------+----------------------------
   Reporter:  tmonteil   |            Owner:
       Type:  defect     |           Status:  new
   Priority:  major      |        Milestone:  sage-6.4
  Component:  symbolics  |         Keywords:  maxima
  Merged in:             |          Authors:
  Reviewers:             |  Report Upstream:  N/A
Work issues:             |           Branch:
     Commit:             |     Dependencies:
   Stopgaps:             |
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 As reported on [http://ask.sagemath.org/question/24412/integral-from-sin-
 at-plus-minus-infinity-seems-to-be-bad/?answer=24413#post-id-24413 this
 ask question], Maxima seems to know that integrating an odd function
 between two opposite endpoints leads to zero, however it applies this rule
 even when the integral is not defined:

 {{{
 sage: integrate(sin(x), x, -oo, oo)
 0
 sage: integrate(tan(x), x, -oo, oo)
 0
 }}}

 However,

 {{{
 sage: integrate(arctan(x), x, -oo, oo)
 ValueError: Integral is divergent.
 }}}

--
Ticket URL: <http://trac.sagemath.org/ticket/17109>
Sage <http://www.sagemath.org>
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