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 import org.apache.commons.math4.legacy.core.Field; 21 import org.apache.commons.math4.legacy.core.RealFieldElement; 22 23 /** 24 * This class is used in the junit tests for the ODE integrators. 25 * <p>This is the same as problem 1 except integration is done 26 * backward in time</p> 27 * @param <T> the type of the field elements 28 */ 29 public class TestFieldProblem5<T extends RealFieldElement<T>> 30 extends TestFieldProblem1<T> { 31 32 /** 33 * Simple constructor. 34 * @param field field to which elements belong 35 */ 36 public TestFieldProblem5(Field<T> field) { 37 super(field); 38 setFinalConditions(getInitialState().getTime().multiply(2).subtract(getFinalTime())); 39 } 40 }