jcckit.util.Util Maven / Gradle / Ivy
/*
* Copyright 2003-2004, Franz-Josef Elmer, All rights reserved
*
* 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; either version 2.1 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 Lesser General Public License for more details
* (http://www.gnu.org/copyleft/lesser.html).
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcckit.util;
/**
* Collection of static utility methods.
*
* @author Franz-Josef Elmer
*/
public class Util {
/** Private constructor to prevent instanciation of this class. */
private Util() {}
/**
* Returns the natural logarithm of the specified number if
* logScale is true.
* @return x if logScale == false.
*/
public static double log(double x, boolean logScale) {
return logScale ? Math.log(x) : x;
}
/**
* Returns the exponential function of the specified number if
* logScale is true.
* @return x if logScale == false.
*/
public static double exp(double x, boolean logScale) {
return logScale ? Math.exp(x) : x;
}
}