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.ode; 19 20 /** 21 * This class is used in the junit tests for the ODE integrators. 22 * <p>This is the same as problem 1 except integration is done 23 * backward in time</p> 24 */ 25 public class TestProblem5 extends TestProblem1 { 26 27 /** 28 * Simple constructor. 29 */ 30 public TestProblem5() { 31 setFinalConditions(2 * getInitialTime() - getFinalTime()); 32 } 33 }