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 package org.apache.commons.geometry.core.internal;
18
19 /** Represents a function that accepts three double values and returns
20 * a result.
21 * @param <T> The function return type.
22 */
23 @FunctionalInterface
24 public interface DoubleFunction3N<T> {
25
26 /** Apply the function and return the result.
27 * @param n1 first function argument
28 * @param n2 second function argument
29 * @param n3 third function argument
30 * @return the function result
31 */
32 T apply(double n1, double n2, double n3);
33 }