#15179: Function_cot.__evalf_() missing some cases
----------------------------+----------------------------------------------
       Reporter:  burcin    |        Owner:
           Type:  defect    |       Status:  needs_review
       Priority:  major     |    Milestone:  sage-duplicate/invalid/wontfix
      Component:            |   Resolution:
  symbolics                 |    Merged in:
       Keywords:            |    Reviewers:  Jeroen Demeyer
        Authors:            |  Work issues:
Report Upstream:  N/A       |       Commit:
         Branch:            |     Stopgaps:
   Dependencies:            |
----------------------------+----------------------------------------------
Changes (by jdemeyer):

 * status:  new => needs_review
 * reviewer:   => Jeroen Demeyer
 * milestone:  sage-6.4 => sage-duplicate/invalid/wontfix


Comment:

 worksforme:
 {{{
 sage: sage: u = cot(pi*x)
 sage: sage: u.is_zero()
 False
 }}}

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Ticket URL: <http://trac.sagemath.org/ticket/15179#comment:4>
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