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https://issues.apache.org/jira/browse/MATH-370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12865724#action_12865724
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Phil Steitz commented on MATH-370:
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I use the equals method and the array version in some of my code that uses
[math] (pretty much the same basic use case as above) and I suspect it is
possible that other users do as well, so I would prefer to keep a renamed
version of it available publicly, if consensus is we need to rename it. The
fact that it is defined at all should be a flag to users that there is
something different going on, at least in the <double, double> case. Note that
the <double, double, double> and <double, double, int> versions are also
"different" from the JDK; but there is no possibility for confusion of intent
for them.
> NaN in "equals" methods
> -----------------------
>
> Key: MATH-370
> URL: https://issues.apache.org/jira/browse/MATH-370
> Project: Commons Math
> Issue Type: Bug
> Reporter: Gilles
> Priority: Minor
>
> In "MathUtils", some "equals" methods will return true if both argument are
> NaN.
> Unless I'm mistaken, this contradicts the IEEE standard.
> If nobody objects, I'm going to make the changes.
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