JMSLMath

java.lang.Object

com.softsynth.jmsl.util.JMSLMath

public class JMSLMath
extends java.lang.Object

Some static methods for logarithms and other misc useful math

Author:: Nick Didkovsky, email: nick@didkovsky.com, (c) 2004 Nick Didkovsky, all rights reserved.

Field Summary

Fields

Modifier and Type Field Description

static double ln2
precalculated for logBase2 operation
Constructor Summary

Constructors

Constructor Description

JMSLMath()

Method Summary

Modifier and Type	Method	Description
`static int`	`highestPowerOfTwoLessThan(int n)`
`static double`	`log(double base, double n)`
`static double`	`logBase2(double n)`
`static void`	`main(java.lang.String[] args)`
`static double`	`roundToHalf(double d)`

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- ln2
  
  public static final double ln2
  
  precalculated for logBase2 operation
Constructor Details
- JMSLMath
  
  public JMSLMath()
Method Details
- logBase2
  
  public static double logBase2(double n)
  
  Returns:
  
  log base 2 of argument
- log
  
  public static double log(double base, double n)
  
  Returns:
  
  log base n of m (general algorithm: logm(n) = ln(n)/ln(base)
- highestPowerOfTwoLessThan
  
  public static int highestPowerOfTwoLessThan(int n)
- roundToHalf
  
  public static double roundToHalf(double d)
- main
  
  public static void main(java.lang.String[] args)