/*
* The Unified Mapping Platform (JUMP) is an extensible, interactive GUI
* for visualizing and manipulating spatial features with geometry and attributes.
*
* Copyright (C) 2003 Vivid Solutions
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jump.util;
/**
* Additional math utilities.
* @see Math
*/
public class MathUtil {
public MathUtil() {
}
public static double orderOfMagnitude(double x) {
return base10Log(x);
}
public static double base10Log(double x) {
return Math.log(x) / Math.log(10);
}
public static int mostSignificantDigit(double x) {
return (int) (x / Math.pow(10, Math.floor(MathUtil.orderOfMagnitude(x))));
}
/**
* Returns the average of two doubles
* @param a one of the doubles to average
* @param b the other double to average
* @return the average of two doubles
*/
public static double avg(double a, double b) {
return (a + b) / 2d;
}
}