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From "Otmar Ertl (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MATH-1269) FastMath.exp may return NaN
Date Sun, 06 Sep 2015 11:54:45 GMT

     [ https://issues.apache.org/jira/browse/MATH-1269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Otmar Ertl updated MATH-1269:
-----------------------------
    Description: I have observed that FastMath.exp(709.8125) returns NaN. However, the exponential
function must never return NaN (if the argument is not NaN). The result must always be non-negative
or positive infinity.  (was: I have observed that FastMath.exp(709.8125) returns NaN. However,
the exponential function must never return NaN. The result must always be non-negative or
positive infinity.)

> FastMath.exp may return NaN
> ---------------------------
>
>                 Key: MATH-1269
>                 URL: https://issues.apache.org/jira/browse/MATH-1269
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 4.0
>            Reporter: Otmar Ertl
>
> I have observed that FastMath.exp(709.8125) returns NaN. However, the exponential function
must never return NaN (if the argument is not NaN). The result must always be non-negative
or positive infinity.



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