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 */ 017package org.apache.commons.math4.legacy.analysis.differentiation; 018 019import org.apache.commons.math4.legacy.analysis.UnivariateFunction; 020 021/** Interface for univariate functions derivatives. 022 * <p>This interface represents a simple function which computes 023 * both the value and the first derivative of a mathematical function. 024 * The derivative is computed with respect to the input variable.</p> 025 * @see UnivariateDifferentiableFunction 026 * @see UnivariateFunctionDifferentiator 027 * @since 3.1 028 */ 029public interface UnivariateDifferentiableFunction extends UnivariateFunction { 030 031 /** Simple mathematical function. 032 * <p>{@link UnivariateDifferentiableFunction} classes compute both the 033 * value and the first derivative of the function.</p> 034 * @param t function input value 035 * @return function result 036 * @throws org.apache.commons.math4.legacy.exception.DimensionMismatchException 037 * if {@code t} is inconsistent with the function's free parameters or order. 038 */ 039 DerivativeStructure value(DerivativeStructure t); 040}