01: /*
02: * Copyright 2004 The Apache Software Foundation.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16: package org.apache.commons.math.analysis;
17:
18: /**
19: * Extension of {@link UnivariateRealFunction} representing a differentiable univariate real function.
20: *
21: * @version $Revision: 155427 $ $Date: 2005-02-26 06:11:52 -0700 (Sat, 26 Feb 2005) $
22: */
23: public interface DifferentiableUnivariateRealFunction extends
24: UnivariateRealFunction {
25:
26: /**
27: * Returns the derivative of the function
28: *
29: * @return the derivative function
30: */
31: public UnivariateRealFunction derivative();
32:
33: }
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