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https://issues.apache.org/jira/browse/MATH-699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147315#comment-13147315
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Christian Winter commented on MATH-699:
---------------------------------------

The Javadoc of {{getSupportLowerBound()}}/{{getSupportUpperBound()}} in fact 
needs to be sharpened. I didn't see this before. If I didn't overlook anything, 
all current implementations already return the best bounds.

Regarding the bracketing issue there are now several ideas (thanks for the 
Chebyshev idea, Phil). But I don't have a preference for a particular solution 
which can be built from these ideas. Thus, Sébastien, just choose a strategy 
which you consider to be beneficial.
                
> inverseCumulativeDistribution fails with cumulative distribution having a 
> plateau
> ---------------------------------------------------------------------------------
>
>                 Key: MATH-699
>                 URL: https://issues.apache.org/jira/browse/MATH-699
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.0
>            Reporter: Sébastien Brisard
>            Assignee: Sébastien Brisard
>            Priority: Minor
>         Attachments: AbstractContinuousDistributionTest.java
>
>
> This bug report follows MATH-692. The attached unit test fails. As required 
> by the definition in MATH-692, the lower-bound of the interval on which the 
> cdf is constant should be returned. This is not so at the moment.

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