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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.math3.analysis;
18  
19  /**
20   * Extension of {@link UnivariateFunction} representing a differentiable univariate real function.
21   *
22   * @version $Id: DifferentiableUnivariateFunction.java 1383845 2012-09-12 08:34:10Z luc $
23   * @deprecated as of 3.1 replaced by {@link org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction}
24   */
25  @Deprecated
26  public interface DifferentiableUnivariateFunction
27      extends UnivariateFunction {
28  
29      /**
30       * Returns the derivative of the function
31       *
32       * @return  the derivative function
33       */
34      UnivariateFunction derivative();
35  
36  }