[Scipy-tickets] [SciPy] #1778: fmin_ncg fails at Rosenbrock

SciPy Trac scipy-tickets@scipy....
Sat Nov 24 02:57:29 CST 2012


#1778: fmin_ncg fails at Rosenbrock
------------------------------+---------------------------------------------
 Reporter:  unknown (google)  |       Owner:  somebody   
     Type:  defect            |      Status:  new        
 Priority:  normal            |   Milestone:  Unscheduled
Component:  scipy.optimize    |     Version:  devel      
 Keywords:  fmin_ncg          |  
------------------------------+---------------------------------------------

Comment(by pv):

 I'm a bit suspicious if the implementation is correct. For Scipy 0.8.0 I
 get a different result (which is also wrong).

 https://github.com/scipy/scipy/blob/master/scipy/optimize/optimize.py#L1199

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Ticket URL: <http://projects.scipy.org/scipy/ticket/1778#comment:2>
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