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Java > Open Source Codes > org > apache > commons > math > analysis > UnivariateRealFunctionUtils


1 /*
2  *
3  * Copyright (c) 2003-2004 The Apache Software Foundation. All rights reserved.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
6  * use this file except in compliance with the License. You may obtain a copy
7  * 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, WITHOUT
13  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14  * License for the specific language governing permissions and limitations
15  * under the License.
16  *
17  */
18
19 package org.apache.commons.math.analysis;
20
21 import org.apache.commons.math.analysis.derivative.BackwardDifferenceDerivative;
22 import org.apache.commons.math.analysis.derivative.CenterDifferenceDerivative;
23 import org.apache.commons.math.analysis.derivative.ForwardDifferenceDerivative;
24
25 /**
26  * @todo add javadoc comment
27  * @version $Revision$ $Date: 2005-02-26 05:11:52 -0800 (Sat, 26 Feb 2005) $
28  */
29 public class UnivariateRealFunctionUtils {
30
31     /**
32      * @todo add javadoc comment
33      */
34     private UnivariateRealFunctionUtils() {
35         super();
36     }
37     
38     public static UnivariateRealFunction backwardDifferenceDerivative(UnivariateRealFunction function, double delta) {
39         return BackwardDifferenceDerivative.decorate(function, delta);
40     }
41     
42     public static UnivariateRealFunction centerDifferenceDerivative(UnivariateRealFunction function, double delta) {
43         return CenterDifferenceDerivative.decorate(function, delta);
44     }
45     
46     public static UnivariateRealFunction forwardDifferenceDerivative(UnivariateRealFunction function, double delta) {
47         return ForwardDifferenceDerivative.decorate(function, delta);
48     }
49 }
50
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