/* * GeoTools - The Open Source Java GIS Toolkit * http://geotools.org * * (C) 2006-2008, Open Source Geospatial Foundation (OSGeo) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. */ package org.geotools.geometry.iso.util; /** * This class offers elementary arithmetic operations for the elementary data type <code>double</code>. * The operations are separated from the rest of the code to keep the option to interchange this package with a exact computation package (where needed). * * The implementations in this class are non-robust in sense that round-errors may occur. * * @author Sanjay Jena * * * * * @source $URL$ */ public class DoubleOperation { /** * Returns the sum of two doubles: d1 + d2 * * @param d1 First value to add * @param d2 Second value to add * @return Sum of the two values */ public static double add(double d1, double d2) { return d1 + d2; } /** * Returns the subtraction of two doubles: d1 - d2 * * @param d1 First value * @param d2 Value to subtract from first value * @return Subtraction d1 - d2 */ public static double subtract(double d1, double d2) { return d1 - d2; } /** * Returns the multiplication of two doubles: d1 * d2 * * @param d1 First value to multiplicate * @param d2 Second value to multiplicate * @return Product of the two values */ public static double mult(double d1, double d2) { return d1 * d2; } /** * Returns the division of two doubles: d1 / d2 * * @param d1 Dividend * @param d2 Divisor * @return Division of the two values */ public static double div(double d1, double d2) { return d1 / d2; } }