Package org.hipparchus.analysis.interpolation

Class NevilleInterpolator

java.lang.Object

org.hipparchus.analysis.interpolation.NevilleInterpolator

All Implemented Interfaces:

Serializable, UnivariateInterpolator

public class NevilleInterpolator
extends Object
implements UnivariateInterpolator, Serializable

Implements the Neville's Algorithm for interpolation of real univariate functions. For reference, see Introduction to Numerical Analysis, ISBN 038795452X, chapter 2.

The actual code of Neville's algorithm is in PolynomialFunctionLagrangeForm, this class provides an easy-to-use interface to it.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
NevilleInterpolator()	Empty constructor.

Method Summary

Modifier and Type	Method	Description
PolynomialFunctionLagrangeForm	interpolate(double[] x, double[] y)	Computes an interpolating function for the data set.

Methods inherited from class java.lang.Object

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

Constructor Details

NevilleInterpolator

public NevilleInterpolator()

Empty constructor.

This constructor is not strictly necessary, but it prevents spurious javadoc warnings with JDK 18 and later.

Since:

3.0

Method Details

interpolate

public PolynomialFunctionLagrangeForm interpolate(double[] x,
 double[] y)
                                           throws MathIllegalArgumentException

Computes an interpolating function for the data set.

Specified by:

interpolate in interface UnivariateInterpolator

Parameters:

x - Interpolating points.

y - Interpolating values.

Returns:

a function which interpolates the data set

Throws:

MathIllegalArgumentException - if the array lengths are different.

MathIllegalArgumentException - if the number of points is less than 2.

MathIllegalArgumentException - if two abscissae have the same value.