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Posted to user@commons.apache.org by Gilles Sadowski <gi...@harfang.homelinux.org> on 2012/05/23 16:56:31 UTC

Re: [Math] polynomial equation degre < 5

Hi.

[Since the ML is shared, you should prefix the subject line of your mails
with the string "[Math]" in order to avoid your question being lost.]

> 
> Could you please tell me what is the best way to find all complex
> roots of an univariate polynomial equation with degre less than 5
> using commons math (last version) ?

The code existed but is currently not accessible through the API. See
  https://issues.apache.org/jira/browse/MATH-768

I might have some time next week for resolving this issue.
A patch is welcome to speed things up (the proposed fix was discussed on the
ML, see the archive).


Best regards,
Gilles

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Re: [Math] polynomial equation degre < 5

Posted by Jean-François MAUREL <jf...@gmail.com>.
Le 23/05/2012 16:56, Gilles Sadowski a écrit :

Hi,

Thank you for your answer.

> [Since the ML is shared, you should prefix the subject line of your mails
> with the string "[Math]" in order to avoid your question being lost.]

Sorry for that.

> The code existed but is currently not accessible through the API. See
>    https://issues.apache.org/jira/browse/MATH-768
>
> I might have some time next week for resolving this issue.
> A patch is welcome to speed things up (the proposed fix was discussed on the
> ML, see the archive).

Thanks for this information.

I am going to have a look

Regards

JF Maurel

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Re: [Math] polynomial equation degre < 5

Posted by Luc Maisonobe <Lu...@free.fr>.
Le 23/05/2012 19:21, Jean-François MAUREL a écrit :
> Hi,
> 
> Le 23/05/2012 16:56, Gilles Sadowski a écrit :
>> A patch is welcome to speed things up (the proposed fix was discussed
>> on the
>> ML, see the archive).
> 
> Trying to check out with svn from eclipse Helios (Windows vista) I get:
> 
> Checkout operation for
> 'http://svn.apache.org/repos/asf/commons/proper/math/trunk' failed.
> org.eclipse.team.svn.core.connector.ISVNProgressMonitor$ItemState.<init>(Ljava/lang/String;IILjava/lang/String;IIJLjava/lang/String;)V
> 
> 
> Any idea what I am missing here?

For anonymous checkout, try from http instead of from https.
The https protocol is mainly used for committers read/write access so it
may require a username.

Luc

> 
> Direct svn checkout
> http://svn.apache.org/repos/asf/commons/proper/math/trunk commons-math3
> works outside eclipse
> 
> Regards
> 
> JF Maurel
> 
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> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
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> 
> 


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Re: [Math] polynomial equation degre < 5

Posted by Jean-François MAUREL <jf...@gmail.com>.
Hi,

Le 23/05/2012 16:56, Gilles Sadowski a écrit :
> A patch is welcome to speed things up (the proposed fix was discussed on the
> ML, see the archive).

Trying to check out with svn from eclipse Helios (Windows vista) I get:

Checkout operation for 
'http://svn.apache.org/repos/asf/commons/proper/math/trunk' failed.
org.eclipse.team.svn.core.connector.ISVNProgressMonitor$ItemState.<init>(Ljava/lang/String;IILjava/lang/String;IIJLjava/lang/String;)V

Any idea what I am missing here?

Direct svn checkout 
http://svn.apache.org/repos/asf/commons/proper/math/trunk commons-math3 
works outside eclipse

Regards

JF Maurel

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