1 /*
2 * Copyright 2003-2004 The Apache Software Foundation.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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 import org.apache.commons.math.FunctionEvaluationException;
19
20 /***
21 * An interface representing a univariate real function.
22 *
23 * @version $Revision: 155427 $ $Date: 2005-02-26 06:11:52 -0700 (Sat, 26 Feb 2005) $
24 */
25 public interface UnivariateRealFunction {
26 /***
27 * Compute the value for the function.
28 * @param x the point for which the function value should be computed
29 * @return the value
30 * @throws FunctionEvaluationException if the function evaluation fails
31 */
32 public double value(double x) throws FunctionEvaluationException;
33
34 }