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https://issues.apache.org/jira/browse/MATH-343?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phil Steitz closed MATH-343.
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> Brent solver doesn't throw IllegalArgumentException when initial guess has
> the wrong sign
> -----------------------------------------------------------------------------------------
>
> Key: MATH-343
> URL: https://issues.apache.org/jira/browse/MATH-343
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.0
> Reporter: Volkan Aktas
> Priority: Critical
> Fix For: 2.1
>
>
> Javadoc for "public double solve(final UnivariateRealFunction f, final double
> min, final double max, final double initial)" claims that "if the values of
> the function at the three points have the same sign" an
> IllegalArgumentException is thrown. This case isn't even checked.
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