#4420: [with patch, needs work] sort Gröbner bases
---------------------------------+------------------------------------------
 Reporter:  malb                 |        Owner:  malb    
     Type:  enhancement          |       Status:  new     
 Priority:  major                |    Milestone:  sage-3.2
Component:  commutative algebra  |   Resolution:          
 Keywords:                       |  
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Changes (by mabshoff):

  * summary:  [with patch, needs review] sort Gröbner bases => [with patch,
              needs work] sort Gröbner bases

Comment:

 Another odd thing: With -t -long the tests pass after applying this patch,
 but with -t -long -optional I reproducibly get the following failure:
 {{{
 sage -t -optional -long
 devel/sage/sage/rings/polynomial/multi_polynomial_ideal.py
 **********************************************************************
 File "/scratch/mabshoff/release-
 cycle/sage-3.1.3.final/tmp/multi_polynomial_ideal.py", line 144:
     sage: I.groebner_basis()
 Expected:
     [x + y + z, y^2 + y + 23234, y*z + y + 26532, 2*y + 158864, z^2 +
 17223, 2*z + 41856, 164878]
 Got:
     [x + y + z, y^2 + y + 23234, y*z + y + 26532, 2*y - 6014, z^2 + 17223,
 2*z + 41856, 164878]
 }}}
 Also: the surf doctests fail since surf was removed from the
 singular.spkg. We might want to package the surf jars into an optinonal
 spkg.

 Cheers,

 Michael

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4420#comment:3>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of 
Reinventing the Wheel
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