#8327: Implement the universal cyclotomic field, using Zumbroich basis
--------------------------------------------------------------------------------------------------------------------+
   Reporter:  nthiery                                                           
                                    |          Owner:                           
        
       Type:  enhancement                                                       
                                    |         Status:  needs_work               
        
   Priority:  major                                                             
                                    |      Milestone:  sage-4.8                 
        
  Component:  number fields                                                     
                                    |       Keywords:  Cyclotomic field, 
Zumbroich basis
Work_issues:  Find dependency or rebase first patch. Fix doctests. Needs more 
doctests and Sphinxified docstrings.  |       Upstream:  N/A                    
          
   Reviewer:                                                                    
                                    |         Author:  Christian Stump, Simon 
King      
     Merged:                                                                    
                                    |   Dependencies:                           
        
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Changes (by SimonKing):

  * work_issues:  Find dependency or rebase first patch. Needs more
                  doctests and Sphinxified docstrings. =>
                  Find dependency or rebase first patch.
                  Fix doctests. Needs more doctests and
                  Sphinxified docstrings.


Comment:

 There are several doctest errors, even when one just has
 {{{
 11761-cython-0.15-rebased.patch
 trac12029_clonable_int_array_2_list.patch
 trac_8327_universal_cyclotomic_field-cs.patch
 trac_8327_universal_cyclotomic_field_new_cython-sk.patch
 }}}
 with the obvious modification on `trac_8327_universal_cyclotomic_field-
 cs.patch`.

 Namely:
 {{{
         sage -t  devel/sage-main/sage/matrix/matrix2.pyx # 25 doctests
 failed
         sage -t  devel/sage-main/sage/modules/free_module.py # 2 doctests
 failed
         sage -t  devel/sage-main/sage/modular/modsym/p1list_nf.py # 5
 doctests failed
         sage -t  devel/sage-main/sage/tests/startup.py # 1 doctests failed
         sage -t  devel/sage-
 main/sage/rings/universal_cyclotomic_field/universal_cyclotomic_field_c.pyx
 # 1 doctests failed
 }}}

 This one here
 {{{
 File "/mnt/local/king/SAGE/rebase/sage-4.8.alpha0/devel/sage-
 main/sage/rings/universal_cyclotomic_field/universal_cyclotomic_field_c.pyx",
 line 239:
     sage: ZumbroichDecomposition_list( 6, 1 )
 Expected:
     array([1, 1])
 Got:
     [1, 1]
 }}}
 could be caused by my patch, which touches `ZumbroichDecomposition`.
 However, I have no idea about the other errors.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8327#comment:32>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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