com.opengamma.strata.math.impl.rootfinding

Class LaguerrePolynomialRealRootFinder

java.lang.Object

com.opengamma.strata.math.impl.rootfinding.LaguerrePolynomialRealRootFinder

All Implemented Interfaces:

Polynomial1DRootFinder<Double>

public class LaguerrePolynomialRealRootFinder
extends Object
implements Polynomial1DRootFinder<Double>

Class that calculates the real roots of a polynomial using Laguerre's method. This class is a wrapper for the Commons Math library implementation of Laguerre's method.

Constructor Summary

Constructors

Constructor and Description
LaguerrePolynomialRealRootFinder()

Method Summary

Modifier and Type	Method and Description
Double[]	getRoots(RealPolynomialFunction1D function)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LaguerrePolynomialRealRootFinder

public LaguerrePolynomialRealRootFinder()

Method Detail

getRoots

public Double[] getRoots(RealPolynomialFunction1D function)

Specified by:

getRoots in interface Polynomial1DRootFinder<Double>

Parameters:

function - The function, not null

Returns:

The roots of the function

Throws:

MathException - If there are no real roots; if the Commons method could not evaluate the function; if the Commons method could not converge.