[Scipy-tickets] [SciPy] #385: iterative solver tolerance error

SciPy scipy-tickets@scipy....
Thu Jul 26 22:21:23 CDT 2007

#385: iterative solver tolerance error
 Reporter:  wnbell                           |        Owner:  cdavid       
     Type:  defect                           |       Status:  assigned     
 Priority:  normal                           |    Milestone:  0.5.3 Release
Component:  scipy.linalg                     |      Version:  devel        
 Severity:  normal                           |   Resolution:               
 Keywords:  iterative cg residual tolerance  |  
Changes (by cdavid):

  * status:  new => assigned
  * owner:  somebody => cdavid


 The relative error is defined as ||b - Ax|| / ||b||, right ? But here b is
 zero. I don't want to change the behaviour of x0 which is not a copy for
 0.5.3, but we can discuss it for later (this would mean changing for all
 the related functions in iterative, at least).

Ticket URL: <http://projects.scipy.org/scipy/scipy/ticket/385#comment:3>
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