#10628: initialization of matrices from vectors or list of lists can be way 
faster
------------------------------+---------------------------------------------
   Reporter:  mderickx        |          Owner:  jason, was                 
       Type:  enhancement     |         Status:  needs_work                 
   Priority:  major           |      Milestone:  sage-4.7.2                 
  Component:  linear algebra  |       Keywords:                             
Work_issues:                  |       Upstream:  N/A                        
   Reviewer:                  |         Author:  Maarten Derickx, Simon King
     Merged:                  |   Dependencies:                             
------------------------------+---------------------------------------------

Comment(by SimonKing):

 There is one more problem with duck typing. Unfortunately,
 `NumberFieldElement_quadratic` has the attribute `list()`. Hence, my patch
 will systematically fail on matrices over (quadratic) number fields.

 So, it is more than just a corner case.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10628#comment:16>
Sage <http://www.sagemath.org>
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