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/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.commons.math3.analysis; /** * An interface representing a multivariate real function. * * @version $Id: MultivariateFunction.java 1364387 2012-07-22 18:14:11Z tn $ * @since 2.0 */ public interface MultivariateFunction { /** * Compute the value for the function at the given point. * * @param point Point at which the function must be evaluated. * @return the function value for the given point. * @throws org.apache.commons.math3.exception.DimensionMismatchException * if the parameter's dimension is wrong for the function being evaluated. * @throws org.apache.commons.math3.exception.MathIllegalArgumentException * when the activated method itself can ascertain that preconditions, * specified in the API expressed at the level of the activated method, * have been violated. In the vast majority of cases where Commons Math * throws this exception, it is the result of argument checking of actual * parameters immediately passed to a method. */ double value(double[] point); }