1/* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17package org.apache.commons.math.analysis.interpolation; 18 19import java.io.Serializable; 20 21import org.apache.commons.math.MathException; 22import org.apache.commons.math.analysis.polynomials.PolynomialFunctionLagrangeForm; 23 24/** 25 * Implements the <a href="http://mathworld.wolfram.com/NevillesAlgorithm.html"> 26 * Neville's Algorithm</a> for interpolation of real univariate functions. For 27 * reference, see <b>Introduction to Numerical Analysis</b>, ISBN 038795452X, 28 * chapter 2. 29 * <p> 30 * The actual code of Neville's evalution is in PolynomialFunctionLagrangeForm, 31 * this class provides an easy-to-use interface to it.</p> 32 * 33 * @version $Revision: 799857 $ $Date: 2009-08-01 15:07:12 +0200 (sam. 01 août 2009) $ 34 * @since 1.2 35 */ 36public class NevilleInterpolator implements UnivariateRealInterpolator, 37 Serializable { 38 39 /** serializable version identifier */ 40 static final long serialVersionUID = 3003707660147873733L; 41 42 /** 43 * Computes an interpolating function for the data set. 44 * 45 * @param x the interpolating points array 46 * @param y the interpolating values array 47 * @return a function which interpolates the data set 48 * @throws MathException if arguments are invalid 49 */ 50 public PolynomialFunctionLagrangeForm interpolate(double x[], double y[]) 51 throws MathException { 52 return new PolynomialFunctionLagrangeForm(x, y); 53 } 54} 55