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Posted to issues@commons.apache.org by "Phil Steitz (JIRA)" <ji...@apache.org> on 2011/07/13 22:24:01 UTC
[jira] [Created] (MATH-618) Complex Add and Subtract handle NaN
arguments differently, but javadoc contracts are the same
Complex Add and Subtract handle NaN arguments differently, but javadoc contracts are the same
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Key: MATH-618
URL: https://issues.apache.org/jira/browse/MATH-618
Project: Commons Math
Issue Type: Bug
Affects Versions: 2.2, 2.1, 2.0, 1.2
Reporter: Phil Steitz
Fix For: 3.0
For both Complex add and subtract, the javadoc states that
{code}
* If either this or <code>rhs</code> has a NaN value in either part,
* {@link #NaN} is returned; otherwise Inifinite and NaN values are
* returned in the parts of the result according to the rules for
* {@link java.lang.Double} arithmetic
{code}
Subtract includes an isNaN test and returns Complex.NaN if either complex argument isNaN; but add omits this test. The test should be added to the add implementation (actually restored, since this looks like a code merge problem going back to 1.1).
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[jira] [Resolved] (MATH-618) Complex Add and Subtract handle NaN
arguments differently, but javadoc contracts are the same
Posted by "Phil Steitz (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phil Steitz resolved MATH-618.
------------------------------
Resolution: Fixed
Fixed in r1146573
> Complex Add and Subtract handle NaN arguments differently, but javadoc contracts are the same
> ---------------------------------------------------------------------------------------------
>
> Key: MATH-618
> URL: https://issues.apache.org/jira/browse/MATH-618
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 1.2, 2.0, 2.1, 2.2
> Reporter: Phil Steitz
> Fix For: 3.0
>
>
> For both Complex add and subtract, the javadoc states that
> {code}
> * If either this or <code>rhs</code> has a NaN value in either part,
> * {@link #NaN} is returned; otherwise Inifinite and NaN values are
> * returned in the parts of the result according to the rules for
> * {@link java.lang.Double} arithmetic
> {code}
> Subtract includes an isNaN test and returns Complex.NaN if either complex argument isNaN; but add omits this test. The test should be added to the add implementation (actually restored, since this looks like a code merge problem going back to 1.1).
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