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 018package org.apache.commons.math3.analysis.differentiation; 019 020import org.apache.commons.math3.analysis.MultivariateFunction; 021import org.apache.commons.math3.exception.MathIllegalArgumentException; 022 023/** 024 * Extension of {@link MultivariateFunction} representing a 025 * multivariate differentiable real function. 026 * @since 3.1 027 */ 028public interface MultivariateDifferentiableFunction extends MultivariateFunction { 029 030 /** 031 * Compute the value for the function at the given point. 032 * 033 * @param point Point at which the function must be evaluated. 034 * @return the function value for the given point. 035 * @exception MathIllegalArgumentException if {@code point} does not 036 * satisfy the function's constraints (wrong dimension, argument out of bound, 037 * or unsupported derivative order for example) 038 */ 039 DerivativeStructure value(DerivativeStructure[] point) 040 throws MathIllegalArgumentException; 041 042}