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From "Gilles (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (MATH-998) Minor design suggestions for RealVector and MultivariateDifferentiableFunction
Date Fri, 28 Jun 2013 11:29:20 GMT

     [ https://issues.apache.org/jira/browse/MATH-998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gilles closed MATH-998.
-----------------------

    Resolution: Incomplete

Discussion to be moved to ML.

                
> Minor design suggestions for RealVector and MultivariateDifferentiableFunction
> ------------------------------------------------------------------------------
>
>                 Key: MATH-998
>                 URL: https://issues.apache.org/jira/browse/MATH-998
>             Project: Commons Math
>          Issue Type: Wish
>    Affects Versions: 3.1, 3.2
>            Reporter: Alexander Nozik
>            Priority: Minor
>
> I am working on some kind of data analysis framework and using Math as a platform. There
are some minor inconveniences in the architecture wich i want to note.
> The first problem concerning RealVector clas. It has a lot of features (too much from
my point of view) but does not implements any simple interface. Also it is not connected with
geometry package wich is not a problem in my case, but seems strange.
> The second problem is MultivariateDifferentiableFunction. It extends MultivariateFunction,
but since 3.1 it uses DerivativeStructure wich is good for symbolic calculations but is not
convinient for empirical and user defined functions. Perhaps it would be usefull to introduce
some additional interfaces for vector to double and vector to vector differentiable functions?

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