001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package org.apache.commons.math3.analysis; 019 020/** 021 * An interface representing a trivariate real function. 022 * 023 * @since 2.2 024 */ 025public interface TrivariateFunction { 026 /** 027 * Compute the value for the function. 028 * 029 * @param x x-coordinate for which the function value should be computed. 030 * @param y y-coordinate for which the function value should be computed. 031 * @param z z-coordinate for which the function value should be computed. 032 * @return the value. 033 */ 034 double value(double x, double y, double z); 035}