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 */ 017 018 package org.apache.commons.math.ode.jacobians; 019 020 import org.apache.commons.math.ode.FirstOrderDifferentialEquations; 021 022 023 /** This interface represents {@link FirstOrderDifferentialEquations 024 * first order differential equations} with parameters. 025 * 026 * @see FirstOrderIntegratorWithJacobians 027 * 028 * @version $Revision: 918702 $ $Date: 2010-03-03 16:28:16 -0500 (Wed, 03 Mar 2010) $ 029 * @since 2.1 030 */ 031 032 public interface ParameterizedODE 033 extends FirstOrderDifferentialEquations { 034 035 /** Get the number of parameters. 036 * @return number of parameters 037 */ 038 int getParametersDimension(); 039 040 /** Set a parameter. 041 * @param i index of the parameters (must be between 0 042 * and {@link #getParametersDimension() getParametersDimension() - 1}) 043 * @param value value for the parameter 044 */ 045 void setParameter(int i, double value); 046 047 }