1 /*
2 * Copyright (C) 2012 Alberto Irurueta Carro (alberto@irurueta.com)
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 com.irurueta.numerical;
17
18 /**
19 * Interface to define how multi dimension functions can be evaluated.
20 * This interface is used in several algorithms to provide methods to evaluate
21 * functions and retrieve their minima/maxima, etc.
22 */
23 public interface MultiDimensionFunctionEvaluatorListener {
24
25 /**
26 * Evaluates a multi dimension function such as f([x1, x2, ..., xn]) at
27 * provided multidimensional point and returns the result as a scalar value.
28 *
29 * @param point Multidimensional point where function will be evaluated.
30 * This must be an array of length equal to the dimensionality of the
31 * function.
32 * @return Value returned by the function.
33 * @throws EvaluationException Raised if something failed during the evaluation.
34 */
35 double evaluate(final double[] point) throws EvaluationException;
36 }