#11900: Serious regression caused by #9138
---------------------------+------------------------------------------------
   Reporter:  SimonKing    |          Owner:  tbd                  
       Type:  defect       |         Status:  needs_work           
   Priority:  blocker      |      Milestone:  sage-4.7.2           
  Component:  performance  |       Keywords:  categories regression
Work_issues:               |       Upstream:  N/A                  
   Reviewer:               |         Author:  Simon King           
     Merged:               |   Dependencies:  #9138                
---------------------------+------------------------------------------------

Comment(by SimonKing):

 Implementing the new coercion for libsingular will not be easy, but it
 seems that it will pay off: It seems to me that some tests in
 _coerce_c_impl are done each time an element is coerced, rather than once,
 just for the parent of that element.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11900#comment:25>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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