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 * https://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
18 /*
19 * This is not the original file distributed by the Apache Software Foundation
20 * It has been modified by the Hipparchus project
21 */
22
23 package org.hipparchus.analysis;
24
25 /**
26 * An interface representing a multivariate real function.
27 *
28 */
29 public interface MultivariateFunction {
30
31 /**
32 * Compute the value for the function at the given point.
33 *
34 * @param point Point at which the function must be evaluated.
35 * @return the function value for the given point.
36 * @throws org.hipparchus.exception.MathIllegalArgumentException
37 * if the parameter's dimension is wrong for the function being evaluated.
38 * @throws org.hipparchus.exception.MathIllegalArgumentException
39 * when the activated method itself can ascertain that preconditions,
40 * specified in the API expressed at the level of the activated method,
41 * have been violated. In the vast majority of cases where Hipparchus
42 * throws this exception, it is the result of argument checking of actual
43 * parameters immediately passed to a method.
44 */
45 double value(double[] point);
46 }