#8276: Make the one(), identity_matrix() and zero_matrix() cached and immutable.
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   Reporter:  hivert          |       Owner:  hivert      
       Type:  defect          |      Status:  needs_work  
   Priority:  major           |   Milestone:  sage-4.3.3  
  Component:  linear algebra  |    Keywords:  One mutable.
     Author:  Florent Hivert  |    Upstream:  N/A         
   Reviewer:                  |      Merged:              
Work_issues:                  |  
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Changes (by hivert):

  * status:  needs_review => needs_work


Comment:

 The last improvement patch breaks something...

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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8276#comment:7>
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