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https://issues.apache.org/jira/browse/MATH-726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13171044#comment-13171044
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Phil Steitz commented on MATH-726:
----------------------------------
+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
> ------------------
>
> 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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