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 */ 17 package org.apache.commons.math.analysis.interpolation; 18 19 import org.apache.commons.math.MathException; 20 import org.apache.commons.math.analysis.MultivariateRealFunction; 21 22 /** 23 * Interface representing a univariate real interpolating function. 24 * 25 * @since 2.1 26 * @version $Revision: 924794 $ $Date: 2010-03-18 15:15:50 +0100 (jeu. 18 mars 2010) $ 27 */ 28 public interface MultivariateRealInterpolator { 29 30 /** 31 * Computes an interpolating function for the data set. 32 * 33 * @param xval the arguments for the interpolation points. 34 * {@code xval[i][0]} is the first component of interpolation point 35 * {@code i}, {@code xval[i][1]} is the second component, and so on 36 * until {@code xval[i][d-1]}, the last component of that interpolation 37 * point (where {@code d} is thus the dimension of the space). 38 * @param yval the values for the interpolation points 39 * @return a function which interpolates the data set 40 * @throws MathException if arguments violate assumptions made by the 41 * interpolation algorithm or some dimension mismatch occurs 42 * @throws IllegalArgumentException if there are no data (xval null or zero length) 43 */ 44 MultivariateRealFunction interpolate(double[][] xval, double[] yval) 45 throws MathException, IllegalArgumentException; 46 } 47
