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Posted to issues@commons.apache.org by "Sebb (JIRA)" <ji...@apache.org> on 2011/01/18 01:25:44 UTC
[jira] Created: (MATH-483) FastMath does not handle special case
-0.0 for asin() and atan()
FastMath does not handle special case -0.0 for asin() and atan()
----------------------------------------------------------------
Key: MATH-483
URL: https://issues.apache.org/jira/browse/MATH-483
Project: Commons Math
Issue Type: Bug
Affects Versions: 2.1, 3.0
Reporter: Sebb
Attachments: MATH-483.patch
The functions asin() and atan() are supposed to return the same sign 0 for zero argument, but they currently return +0.0 for both.
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[jira] Updated: (MATH-483) FastMath does not handle all special
cases correctly
Posted by "Sebb (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebb updated MATH-483:
----------------------
Attachment: MATH-483-generic.patch
Generic test methods using reflection to compare Math methods with FastMath methods for float and double special cases.
Replaces testHyperbolicSpecialCases() and testTrigSpecialCases() in the previous patch
> FastMath does not handle all special cases correctly
> ----------------------------------------------------
>
> Key: MATH-483
> URL: https://issues.apache.org/jira/browse/MATH-483
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1, 3.0
> Reporter: Sebb
> Attachments: MATH-483-generic.patch, MATH-483.patch
>
>
> FastMath has some issues with special cases such as +0.0 and -0.0.
> Here are the double cases so far found:
> abs(-0.0) expected:<0.0> but was:<-0.0>
> signum(-0.0) expected:<-0.0> but was:<0.0>
> asin(-0.0) expected:<-0.0> but was:<0.0>
> atan(-0.0) expected:<-0.0> but was:<0.0>
> log10(-0.0) expected:<-Infinity> but was:<NaN>
> toDegrees(-0.0) expected:<-0.0> but was:<0.0>
> toRadians(-0.0) expected:<-0.0> but was:<0.0>
> ulp(-Infinity) expected:<Infinity> but was:<NaN>
> And float cases:
> abs(-0.0) expected:<0.0> but was:<-0.0>
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[jira] Updated: (MATH-483) FastMath does not handle all special
cases correctly
Posted by "Sebb (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebb updated MATH-483:
----------------------
Affects Version/s: (was: 2.1)
2.2
> FastMath does not handle all special cases correctly
> ----------------------------------------------------
>
> Key: MATH-483
> URL: https://issues.apache.org/jira/browse/MATH-483
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.2, 3.0
> Reporter: Sebb
> Fix For: 2.2, 3.0
>
> Attachments: MATH-483-generic.patch, MATH-483.patch
>
>
> FastMath has some issues with special cases such as +0.0 and -0.0.
> Here are the double cases so far found:
> abs(-0.0) expected:<0.0> but was:<-0.0>
> signum(-0.0) expected:<-0.0> but was:<0.0>
> asin(-0.0) expected:<-0.0> but was:<0.0>
> atan(-0.0) expected:<-0.0> but was:<0.0>
> log10(-0.0) expected:<-Infinity> but was:<NaN>
> toDegrees(-0.0) expected:<-0.0> but was:<0.0>
> toRadians(-0.0) expected:<-0.0> but was:<0.0>
> ulp(-Infinity) expected:<Infinity> but was:<NaN>
> And float cases:
> abs(-0.0) expected:<0.0> but was:<-0.0>
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[jira] [Closed] (MATH-483) FastMath does not handle all special
cases correctly
Posted by "Luc Maisonobe (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Luc Maisonobe closed MATH-483.
------------------------------
Closing issue as it was included in version 2.2, which has been released
> FastMath does not handle all special cases correctly
> ----------------------------------------------------
>
> Key: MATH-483
> URL: https://issues.apache.org/jira/browse/MATH-483
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.2, 3.0
> Reporter: Sebb
> Fix For: 2.2, 3.0
>
> Attachments: MATH-483-generic.patch, MATH-483.patch
>
>
> FastMath has some issues with special cases such as +0.0 and -0.0.
> Here are the double cases so far found:
> abs(-0.0) expected:<0.0> but was:<-0.0>
> signum(-0.0) expected:<-0.0> but was:<0.0>
> asin(-0.0) expected:<-0.0> but was:<0.0>
> atan(-0.0) expected:<-0.0> but was:<0.0>
> log10(-0.0) expected:<-Infinity> but was:<NaN>
> toDegrees(-0.0) expected:<-0.0> but was:<0.0>
> toRadians(-0.0) expected:<-0.0> but was:<0.0>
> ulp(-Infinity) expected:<Infinity> but was:<NaN>
> And float cases:
> abs(-0.0) expected:<0.0> but was:<-0.0>
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[jira] Updated: (MATH-483) FastMath does not handle all special
cases correctly
Posted by "Sebb (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebb updated MATH-483:
----------------------
Description:
FastMath has some issues with special cases such as +0.0 and -0.0.
Here are the double cases so far found:
abs(-0.0) expected:<0.0> but was:<-0.0>
signum(-0.0) expected:<-0.0> but was:<0.0>
asin(-0.0) expected:<-0.0> but was:<0.0>
atan(-0.0) expected:<-0.0> but was:<0.0>
log10(-0.0) expected:<-Infinity> but was:<NaN>
toDegrees(-0.0) expected:<-0.0> but was:<0.0>
toRadians(-0.0) expected:<-0.0> but was:<0.0>
ulp(-Infinity) expected:<Infinity> but was:<NaN>
And float cases:
abs(-0.0) expected:<0.0> but was:<-0.0>
was:The functions asin() and atan() are supposed to return the same sign 0 for zero argument, but they currently return +0.0 for both.
Summary: FastMath does not handle all special cases correctly (was: FastMath does not handle special case -0.0 for asin() and atan())
> FastMath does not handle all special cases correctly
> ----------------------------------------------------
>
> Key: MATH-483
> URL: https://issues.apache.org/jira/browse/MATH-483
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1, 3.0
> Reporter: Sebb
> Attachments: MATH-483.patch
>
>
> FastMath has some issues with special cases such as +0.0 and -0.0.
> Here are the double cases so far found:
> abs(-0.0) expected:<0.0> but was:<-0.0>
> signum(-0.0) expected:<-0.0> but was:<0.0>
> asin(-0.0) expected:<-0.0> but was:<0.0>
> atan(-0.0) expected:<-0.0> but was:<0.0>
> log10(-0.0) expected:<-Infinity> but was:<NaN>
> toDegrees(-0.0) expected:<-0.0> but was:<0.0>
> toRadians(-0.0) expected:<-0.0> but was:<0.0>
> ulp(-Infinity) expected:<Infinity> but was:<NaN>
> And float cases:
> abs(-0.0) expected:<0.0> but was:<-0.0>
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[jira] Updated: (MATH-483) FastMath does not handle special case
-0.0 for asin() and atan()
Posted by "Sebb (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebb updated MATH-483:
----------------------
Attachment: MATH-483.patch
Fix + test cases
> FastMath does not handle special case -0.0 for asin() and atan()
> ----------------------------------------------------------------
>
> Key: MATH-483
> URL: https://issues.apache.org/jira/browse/MATH-483
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1, 3.0
> Reporter: Sebb
> Attachments: MATH-483.patch
>
>
> The functions asin() and atan() are supposed to return the same sign 0 for zero argument, but they currently return +0.0 for both.
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[jira] Resolved: (MATH-483) FastMath does not handle all special
cases correctly
Posted by "Sebb (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebb resolved MATH-483.
-----------------------
Resolution: Fixed
Fix Version/s: 3.0
2.2
There are still some issues with toDegrees() and toRadians() but these are covered by MATH-486
> FastMath does not handle all special cases correctly
> ----------------------------------------------------
>
> Key: MATH-483
> URL: https://issues.apache.org/jira/browse/MATH-483
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1, 3.0
> Reporter: Sebb
> Fix For: 2.2, 3.0
>
> Attachments: MATH-483-generic.patch, MATH-483.patch
>
>
> FastMath has some issues with special cases such as +0.0 and -0.0.
> Here are the double cases so far found:
> abs(-0.0) expected:<0.0> but was:<-0.0>
> signum(-0.0) expected:<-0.0> but was:<0.0>
> asin(-0.0) expected:<-0.0> but was:<0.0>
> atan(-0.0) expected:<-0.0> but was:<0.0>
> log10(-0.0) expected:<-Infinity> but was:<NaN>
> toDegrees(-0.0) expected:<-0.0> but was:<0.0>
> toRadians(-0.0) expected:<-0.0> but was:<0.0>
> ulp(-Infinity) expected:<Infinity> but was:<NaN>
> And float cases:
> abs(-0.0) expected:<0.0> but was:<-0.0>
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (MATH-483) FastMath does not handle all special
cases correctly
Posted by "Sebb (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebb updated MATH-483:
----------------------
Attachment: MATH-483-generic.patch
Fixed bug - duplicate MAX_VALUE should have MIN_VALUE
> FastMath does not handle all special cases correctly
> ----------------------------------------------------
>
> Key: MATH-483
> URL: https://issues.apache.org/jira/browse/MATH-483
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1, 3.0
> Reporter: Sebb
> Attachments: MATH-483-generic.patch, MATH-483.patch
>
>
> FastMath has some issues with special cases such as +0.0 and -0.0.
> Here are the double cases so far found:
> abs(-0.0) expected:<0.0> but was:<-0.0>
> signum(-0.0) expected:<-0.0> but was:<0.0>
> asin(-0.0) expected:<-0.0> but was:<0.0>
> atan(-0.0) expected:<-0.0> but was:<0.0>
> log10(-0.0) expected:<-Infinity> but was:<NaN>
> toDegrees(-0.0) expected:<-0.0> but was:<0.0>
> toRadians(-0.0) expected:<-0.0> but was:<0.0>
> ulp(-Infinity) expected:<Infinity> but was:<NaN>
> And float cases:
> abs(-0.0) expected:<0.0> but was:<-0.0>
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (MATH-483) FastMath does not handle all special
cases correctly
Posted by "Sebb (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebb updated MATH-483:
----------------------
Attachment: (was: MATH-483-generic.patch)
> FastMath does not handle all special cases correctly
> ----------------------------------------------------
>
> Key: MATH-483
> URL: https://issues.apache.org/jira/browse/MATH-483
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1, 3.0
> Reporter: Sebb
> Attachments: MATH-483-generic.patch, MATH-483.patch
>
>
> FastMath has some issues with special cases such as +0.0 and -0.0.
> Here are the double cases so far found:
> abs(-0.0) expected:<0.0> but was:<-0.0>
> signum(-0.0) expected:<-0.0> but was:<0.0>
> asin(-0.0) expected:<-0.0> but was:<0.0>
> atan(-0.0) expected:<-0.0> but was:<0.0>
> log10(-0.0) expected:<-Infinity> but was:<NaN>
> toDegrees(-0.0) expected:<-0.0> but was:<0.0>
> toRadians(-0.0) expected:<-0.0> but was:<0.0>
> ulp(-Infinity) expected:<Infinity> but was:<NaN>
> And float cases:
> abs(-0.0) expected:<0.0> but was:<-0.0>
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