#9505: coeff(f,x*y) does not work
-----------------------------------+----------------------------
       Reporter:  zimmerma         |        Owner:  burcin
           Type:  defect           |       Status:  needs_review
       Priority:  critical         |    Milestone:  sage-5.12
      Component:  symbolics        |   Resolution:
       Keywords:  pynac            |    Merged in:
        Authors:  Paul Zimmermann  |    Reviewers:
Report Upstream:  N/A              |  Work issues:
         Branch:                   |       Commit:
   Dependencies:                   |     Stopgaps:  #12699
-----------------------------------+----------------------------
Changes (by {'newvalue': u'Paul Zimmermann', 'oldvalue': ''}):

 * status:  new => needs_review
 * author:   => Paul Zimmermann


Comment:

 attached is a temporary fix that calls coeff in turn for each term
 {{{x^n}}} in {{{s}}}.
 In addition it checks the extra argument {{{n}}} is only used for a single
 symbol.

 Paul

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Ticket URL: <http://trac.sagemath.org/ticket/9505#comment:8>
Sage <http://www.sagemath.org>
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