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From "Rob Tompkins (JIRA)" <>
Subject [jira] [Updated] (MATH-1215) Allow solvers to return "Complex" roots
Date Tue, 18 Apr 2017 15:27:41 GMT


Rob Tompkins updated MATH-1215:
    Fix Version/s:     (was: 4.0)

> Allow solvers to return "Complex" roots
> ---------------------------------------
>                 Key: MATH-1215
>                 URL:
>             Project: Commons Math
>          Issue Type: Improvement
>            Reporter: Gilles
>            Priority: Minor
>              Labels: API, design
>             Fix For: 4.X
> Some solvers in {{o.a.c.m.analysis.solvers}} are able to return the set of all complex
roots of a function (namely "LaguerreSolver").
> However, the functionality does not fit with the overall design of the classes in this
package which focus of computing one real ("double") root within a user-defined interval.
> An idea is to provide a "ComplexSolver" public interface whose "solve" method would return
a "Complex[]" containing the complex roots. 
> Moreover some time ago, we decided to modify the Commons Math API so as to provide the
"fluent API" idiom.

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