Gilles created MATH-879:
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Summary: "CMAESOptimizer" silently changes invalid input
Key: MATH-879
URL: https://issues.apache.org/jira/browse/MATH-879
Project: Commons Math
Issue Type: Bug
Affects Versions: 3.0
Reporter: Gilles
Assignee: Gilles
Priority: Trivial
Fix For: 3.1
The "lambda" input parameter must be strictly positive. But when it's not the
case, an undocumented default is used (cf. line 526).
When a precondition is not satisfied, the code must throw an exception.
Instead of the code unknowingly changing the input, it is rather the
documentation that should suggest a good default.
This change would allow to make "lambda" a constant (final) field.
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