#4000: [with patch, needs work] Implement QQ['x'] via Flint ZZ['x'] + 
denominator
---------------------------------------------------+------------------------
   Reporter:  malb                                 |       Owner:  somebody     
       Type:  enhancement                          |      Status:  needs_work   
   Priority:  major                                |   Milestone:  sage-wishlist
  Component:  basic arithmetic                     |    Keywords:               
     Author:  Sebastian Pancratz, Martin Albrecht  |    Upstream:  N/A          
   Reviewer:                                       |      Merged:               
Work_issues:                                       |  
---------------------------------------------------+------------------------
Changes (by newvalueoldvalue):

 * cc: malb (added)
  * author:  Martin Albrecht => Sebastian Pancratz, Martin Albrecht


Comment:

 I've now added two patches to this.  The first one ``trac383.patch``
 contains all three patches from ticket #383.  The second patch
 ``trac4000_rebase_431rc0_383.patch`` is the main patch from this patch,
 which is now rebased on 4.3.1.rc0 *and* the first patch.  With this, the
 only remaining doctests failures are

 {{{
 sage -t  "devel/sage-qq/sage/combinat/species/composition_species.py"
 **********************************************************************
 File "/scratch/pancratz/sage-4.3.1.rc0/devel/sage-
 qq/sage/combinat/species/composition_species.py", line 235:
     sage: S.isotype_generating_series().coefficients(5) #indirect
 Expected:
     [1, t, t^2 + t, t^3 + t^2 + t, t^4 + t^3 + 2*t^2 + t]
 Got:
     [1, t, 1/2*t^2, 1/6*t^3, 1/24*t^4]
 **********************************************************************
 File "/scratch/pancratz/sage-4.3.1.rc0/devel/sage-
 qq/sage/combinat/species/composition_species.py", line 247:
     sage: Par.isotype_generating_series().coefficients(5)
 Expected:
     [1, t, t^2 + t, t^3 + t^2 + t, t^4 + t^3 + 2*t^2 + t]
 Got:
     [1, t, 1/2*t^2 + 1/2*t, 1/6*t^3 + 1/2*t^2 + 1/6*t, 1/24*t^4 + 1/4*t^3
 + 7/24*t^2 + 1/24*t]
 **********************************************************************
 1 items had failures:
    2 of  15 in __main__.example_11
 ***Test Failed*** 2 failures.
 For whitespace errors, see the file
 /home/pancratz/.sage//tmp/.doctest_composition_species.py
          [5.7 s]
 exit code: 1024

 ----------------------------------------------------------------------
 The following tests failed:


         sage -t  "devel/sage-
 qq/sage/combinat/species/composition_species.py"
 }}}

 I am not sure what's going on here.  Could someone else please take a look
 at this?

 Thanks!

 Sebastian

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4000#comment:34>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB
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