| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.commons.math.function.simple; |
| |
| import java.io.Serializable; |
| |
| import org.apache.commons.math.function.EvaluationContext; |
| import org.apache.commons.math.function.Evaluation; |
| import org.apache.commons.math.function.EvaluationException; |
| |
| /** |
| |
| |
| */ |
| public class Subtract implements Evaluation, Serializable { |
| |
| private Evaluation left; |
| |
| private Evaluation right; |
| |
| public void setLeftOperand(Evaluation left) { |
| this.left = left; |
| } |
| |
| public void setRightOperand(Evaluation right) { |
| this.right = right; |
| } |
| |
| public Evaluation evaluate(EvaluationContext context) throws EvaluationException { |
| return context.evaluate( |
| context.doubleValue(left) - context.doubleValue(right) |
| ); |
| } |
| |
| public String toString() { |
| return "Subtract"; |
| } |
| } |