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; 019 020 /** 021 * This class is used in the junit tests for the ODE integrators. 022 * <p>This is the same as problem 1 except integration is done 023 * backward in time</p> 024 */ 025 public class TestProblem5 026 extends TestProblem1 { 027 028 /** Serializable version identifier. */ 029 private static final long serialVersionUID = 7579233102411804237L; 030 031 /** 032 * Simple constructor. 033 */ 034 public TestProblem5() { 035 super(); 036 setFinalConditions(2 * t0 - t1); 037 } 038 039 /** {@inheritDoc} */ 040 public TestProblem5 copy() { 041 return new TestProblem5(); 042 } 043 }