001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.apache.commons.math.analysis; 019 020 import org.apache.commons.math.FunctionEvaluationException; 021 022 /** 023 * An interface representing a multivariate real function. 024 * @version $Revision: 1070725 $ $Date: 2011-02-15 02:31:12 +0100 (mar. 15 f??vr. 2011) $ 025 * @since 2.0 026 */ 027 public interface MultivariateRealFunction { 028 029 /** 030 * Compute the value for the function at the given point. 031 * @param point point at which the function must be evaluated 032 * @return function value for the given point 033 * @exception FunctionEvaluationException if the function evaluation fails 034 * @exception IllegalArgumentException if points dimension is wrong 035 */ 036 double value(double[] point) 037 throws FunctionEvaluationException, IllegalArgumentException; 038 039 }