Gilles Sadowski created MATH-1625:
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             Summary: Enable tracking of optimizer behaviour
                 Key: MATH-1625
                 URL: https://issues.apache.org/jira/browse/MATH-1625
             Project: Commons Math
          Issue Type: Sub-task
            Reporter: Gilles Sadowski
            Assignee: Gilles Sadowski
             Fix For: 4.0


In order to investigate
 * implementations failure on some of the test functions,
 * lack of good performance (in terms of expected number of evaluations of the 
objective function),

it is proposed to add a 
["callback"|https://en.wikipedia.org/wiki/Observer_pattern] feature to 
{{SimplexOptimizer}}.

The purpose is to track/record simplex transformations during the course of the 
optimization.



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