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 package org.apache.commons.math3.analysis.differentiation;
018
019 import org.apache.commons.math3.analysis.UnivariateFunction;
020 import org.apache.commons.math3.exception.MathIllegalArgumentException;
021
022 /** Interface for univariate functions derivatives.
023 * <p>This interface represents a simple function which computes
024 * both the value and the first derivative of a mathematical function.
025 * The derivative is computed with respect to the input variable.</p>
026 * @see UnivariateDifferentiableFunction
027 * @see UnivariateFunctionDifferentiator
028 * @since 3.1
029 * @version $Id: UnivariateDifferentiableFunction.java 1416643 2012-12-03 19:37:14Z tn $
030 */
031 public interface UnivariateDifferentiableFunction extends UnivariateFunction {
032
033 /** Simple mathematical function.
034 * <p>{@link UnivariateDifferentiableFunction} classes compute both the
035 * value and the first derivative of the function.</p>
036 * @param t function input value
037 * @return function result
038 * @exception MathIllegalArgumentException if {@code t} does not
039 * fulfill functions constraints (argument out of bound, or unsupported
040 * derivative order for example)
041 */
042 DerivativeStructure value(DerivativeStructure t) throws MathIllegalArgumentException;
043
044 }