mirror of https://github.com/octoleo/plantuml.git
48 lines
1.6 KiB
Java
48 lines
1.6 KiB
Java
/*
|
|
* 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
|
|
* <tt>logScale</tt> is true.
|
|
* @return <tt>x</tt> if <tt>logScale == false</tt>.
|
|
*/
|
|
public static double log(double x, boolean logScale) {
|
|
return logScale ? Math.log(x) : x;
|
|
}
|
|
|
|
/**
|
|
* Returns the exponential function of the specified number if
|
|
* <tt>logScale</tt> is true.
|
|
* @return <tt>x</tt> if <tt>logScale == false</tt>.
|
|
*/
|
|
public static double exp(double x, boolean logScale) {
|
|
return logScale ? Math.exp(x) : x;
|
|
}
|
|
}
|