[Scipy-tickets] [SciPy] #734: errors in fmin_bfgs and some improvements

SciPy Trac scipy-tickets@scipy....
Sat Jun 4 17:35:22 CDT 2011

#734: errors in fmin_bfgs and some improvements
 Reporter:  jgarcke         |       Owner:  cdavid      
     Type:  defect          |      Status:  needs_review
 Priority:  normal          |   Milestone:  0.10.0      
Component:  scipy.optimize  |     Version:  0.5.2       
 Keywords:                  |  

Comment(by rgommers):

 @rfc: I made one small change to your patch, see
 https://github.com/rgommers/scipy/tree/ticket-734-fmin_bfg. A new keyword
 argument (xtol) should always be added at the end. Otherwise it breaks
 backwards compatibility when keyword args are supplied as positional args.

 The xtol addition should have a test that exercises it. Do you have an
 example that can be turned into a test?

Ticket URL: <http://projects.scipy.org/scipy/ticket/734#comment:10>
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