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 * 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,
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 package org.apache.commons.math4.legacy.analysis;
19
20 /**
21 * An interface representing a trivariate real function.
22 *
23 * @since 2.2
24 */
25 public interface TrivariateFunction {
26 /**
27 * Compute the value for the function.
28 *
29 * @param x x-coordinate for which the function value should be computed.
30 * @param y y-coordinate for which the function value should be computed.
31 * @param z z-coordinate for which the function value should be computed.
32 * @return the value.
33 */
34 double value(double x, double y, double z);
35 }