[jira] [Created] (LANG-783) Documentation bug: StringUtils.split
Documentation bug: StringUtils.split Key: LANG-783 URL: https://issues.apache.org/jira/browse/LANG-783 Project: Commons Lang Issue Type: Bug Components: lang.* Affects Versions: 3.1 Reporter: Samuel Tardieu Priority: Trivial The documentation for StringUtils.split(String, String, int) contains wrong strings: StringUtils.split(ab de fg, null, 0) = [ab, cd, ef] StringUtils.split(ab de fg, null, 0) = [ab, cd, ef] This should read: StringUtils.split(ab cd ef, null, 0) = [ab, cd, ef] StringUtils.split(ab cd ef, null, 0) = [ab, cd, ef] -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Resolved] (MATH-717) A varied class of Array2DRowRealMatrix is needed to contain float type instead of double.
[ https://issues.apache.org/jira/browse/MATH-717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Gilles resolved MATH-717. - Resolution: Not A Problem A varied class of Array2DRowRealMatrix is needed to contain float type instead of double. - Key: MATH-717 URL: https://issues.apache.org/jira/browse/MATH-717 Project: Commons Math Issue Type: Improvement Affects Versions: 2.2 Environment: All Reporter: Dusan Ku Labels: features The current implementation of Array2DRowRealMatrix takes only double type as its base element value in the matrix. However, the memory size of double is bigger than float, the downside of which makes the matrix dimension quite limited, compared to float type as its base element type. For small sized problem, this does not make such a big difference, but for large problems, this limits the usability of this library quite severely. In my case, I easily hit an error even after I increase the memory option to 1G. This could have been much more enhanced just by using 'float[][]' instead of the current Array2DRowRealMatrix. Therefore, the solution I may suggest is to add another class similar to Array2DRowRealMatrix containing float type for its matrix variable instead of double. Of course, a better way is welcome as long as the needs can be fulfilled. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Created] (MATH-726) Ridders derivative
Ridders derivative
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Key: MATH-726
URL: https://issues.apache.org/jira/browse/MATH-726
Project: Commons Math
Issue Type: New Feature
Reporter: Gilles
Assignee: Gilles
Priority: Minor
Fix For: 3.0
Implementation of the numerical first derivative, as described in:
{noformat}
Accurate computation of F'(x) and F'(x) F''(x)
C. J. F. Ridders
Adv. Eng. Software, 1982, Vol 4, No. 2
{noformat}
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[jira] [Updated] (MATH-726) Ridders derivative
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https://issues.apache.org/jira/browse/MATH-726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gilles updated MATH-726:
Attachment: RiddersFirstDerivative.java
Attached proposed implementation. OK to add?
Ridders derivative
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Key: MATH-726
URL: https://issues.apache.org/jira/browse/MATH-726
Project: Commons Math
Issue Type: New Feature
Reporter: Gilles
Assignee: Gilles
Priority: Minor
Labels: features
Fix For: 3.0
Attachments: RiddersFirstDerivative.java
Implementation of the numerical first derivative, as described in:
{noformat}
Accurate computation of F'(x) and F'(x) F''(x)
C. J. F. Ridders
Adv. Eng. Software, 1982, Vol 4, No. 2
{noformat}
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[jira] [Commented] (MATH-726) Ridders derivative
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https://issues.apache.org/jira/browse/MATH-726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13170958#comment-13170958
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Luc Maisonobe commented on MATH-726:
If we want to implement derivatives, I would rather set up a top level
interface and several implementations, including this one. We could for example
import the definitions from Nabla core package
([http://svn.apache.org/viewvc/commons/sandbox/nabla/trunk/src/main/java/org/apache/commons/nabla/core/])
and the implementations of Nabla numerical package
([http://svn.apache.org/viewvc/commons/sandbox/nabla/trunk/src/main/java/org/apache/commons/nabla/numerical/]).
Of course, once imported these packages would be removed from Nabla itself and
replaced by a dependency to Math.
Ridders derivative
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Key: MATH-726
URL: https://issues.apache.org/jira/browse/MATH-726
Project: Commons Math
Issue Type: New Feature
Reporter: Gilles
Assignee: Gilles
Priority: Minor
Labels: features
Fix For: 3.0
Attachments: RiddersFirstDerivative.java
Implementation of the numerical first derivative, as described in:
{noformat}
Accurate computation of F'(x) and F'(x) F''(x)
C. J. F. Ridders
Adv. Eng. Software, 1982, Vol 4, No. 2
{noformat}
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[jira] [Commented] (MATH-726) Ridders derivative
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https://issues.apache.org/jira/browse/MATH-726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13170977#comment-13170977
]
Gilles commented on MATH-726:
-
The proposed code was modelled against the structure of solvers and optimizers
classes (method derivative is the counterpart of solve and optimize,
respectively).
What you propose seems to depart from this, but I cannot really judge because I
don't know anything about nabla.
It may be the right way in the longer term... However, given the resources
devoted to nabla, I don't think that it is wise to force Commons Math to fit
the current design of nabla. I see well that nabla and CM could converge at
the time of CM version 4.0. :)
But for v3.x it could be fine to provide the low-level bits (?).
But it can also be that I completely missed your point. If so, could you please
post the code that would help me figure out what you propose?
Ridders derivative
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Key: MATH-726
URL: https://issues.apache.org/jira/browse/MATH-726
Project: Commons Math
Issue Type: New Feature
Reporter: Gilles
Assignee: Gilles
Priority: Minor
Labels: features
Fix For: 3.0
Attachments: RiddersFirstDerivative.java
Implementation of the numerical first derivative, as described in:
{noformat}
Accurate computation of F'(x) and F'(x) F''(x)
C. J. F. Ridders
Adv. Eng. Software, 1982, Vol 4, No. 2
{noformat}
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[jira] [Commented] (MATH-726) Ridders derivative
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https://issues.apache.org/jira/browse/MATH-726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13171044#comment-13171044
]
Phil Steitz commented on MATH-726:
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+1 to moving the [nabla] numerics code into [math] and standardizing on the
[nabla] API (which will become the [math] API that [nabla] will depend on). If
the API is not to everyone's liking, we can change it. The relevant classes
are in o.a.c.nabla.numerical and o.a.c.nabla.core in the [nabla] sandbox svn,
per Luc's links above.
Might be best to postpone this until post-3.0, as the package additions could
be done in 3.1 without breaks; but I would personally be OK with a lift and
load from [nabla] (along with the proposed Ridder's impl) for 3.0 if someone is
willing to do the work.
Ridders derivative
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Key: MATH-726
URL: https://issues.apache.org/jira/browse/MATH-726
Project: Commons Math
Issue Type: New Feature
Reporter: Gilles
Assignee: Gilles
Priority: Minor
Labels: features
Fix For: 3.0
Attachments: RiddersFirstDerivative.java
Implementation of the numerical first derivative, as described in:
{noformat}
Accurate computation of F'(x) and F'(x) F''(x)
C. J. F. Ridders
Adv. Eng. Software, 1982, Vol 4, No. 2
{noformat}
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[jira] [Commented] (JEXL-124) Array parameters to methods don't work anymore
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https://issues.apache.org/jira/browse/JEXL-124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13171366#comment-13171366
]
Sebb commented on JEXL-124:
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I've just uploaded a 2.1.1 SNAPSHOT build if you want to give that a try:
https://repository.apache.org/content/repositories/snapshots/org/apache/commons/commons-jexl/2.1.1-SNAPSHOT/
Array parameters to methods don't work anymore
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Key: JEXL-124
URL: https://issues.apache.org/jira/browse/JEXL-124
Project: Commons JEXL
Issue Type: Bug
Affects Versions: 2.1
Reporter: Jeff Schnitzer
Assignee: Henri Biestro
Fix For: 2.1.1
I have some code that worked in 2.0.1 and fails in 2.1. It looks like this:
${tool.jsbuilder(['form2js', 'js2form', 'jquery.dirtyform'])}
(it's being called from a cambridge template, but that doesn't matter). The
jsbuilder() method simply takes a String[].
Now it throws an exception, the exact nature of which is getting eaten by
something. The error message looks like Could not execute the expression:
Error evaluating exception on line: 13, column: 15, expression:
tool.jsbuilder([... and then the parameters.
Sorry about not making a nice test case out of this but I'm in a hurry and
reverting to 2.0.1 for now.
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