#11726: Implement univariate Laurent polynomial ring & elements
-------------------------------------+-------------------------------------
       Reporter:  boothby            |        Owner:  boothby
           Type:  defect             |       Status:  needs_work
       Priority:  minor              |    Milestone:  sage-6.2
      Component:  commutative        |   Resolution:
  algebra                            |    Merged in:
       Keywords:  sd32, Laurent      |    Reviewers:  Travis Scrimshaw,
  polynomials                        |  Ralf Stephan
        Authors:  Tom Boothby        |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  a4e01907300ec292c81f3a0ca9e89c921c823522
  public/ticket/11726                |     Stopgaps:
   Dependencies:  #14261 #15345      |
  #15450 #15843                      |
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Changes (by vbraun):

 * status:  positive_review => needs_work


Comment:

 Fails doctests
 {{{
 sage -t src/doc/en/thematic_tutorials/lie/kazhdan_lusztig_polynomials.rst
 **********************************************************************
 File "src/doc/en/thematic_tutorials/lie/kazhdan_lusztig_polynomials.rst",
 line 17, in doc.en.thematic_tutorials.lie.kazhdan_lusztig_polynomials
 Failed example:
     KL.R(s2, s2*s1*s3*s2)
 Expected:
     q^3 - 3*q^2 + 3*q - 1
 Got:
     -1 + 3*q - 3*q^2 + q^3
 }}}

--
Ticket URL: <http://trac.sagemath.org/ticket/11726#comment:22>
Sage <http://www.sagemath.org>
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