jhplot

Class HParam

java.lang.Object

jhplot.HParam

public class HParam
extends Object

Global setting for all DMelt jhplot class methods for mathematical calculations. By default, DMelt uses Java Math library that provides fast elementary functions with e-14 accuracy. If you set false to fast calculations, the standard Java Math is used. They are usually about 2-3 times slower, but have higher accuracy. By default, fast calculations are enabled.

If you need full Java accuracy, set setFastMath(False).

Constructor Summary

Constructors

Constructor and Description
HParam()

Method Summary

Modifier and Type	Method and Description
static boolean	isFastMath() Check is fast math calculation enabled.
static void	setExactMath() Set exact math calculation using Java Math.
static void	setFastMath() Set fast math calculation (4-5 times faster than Java Math).
static void	setFastMath(boolean fast) Set fast math calculation (3-5 times faster than Java Math).

Methods inherited from class java.lang.Object

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

Constructor Detail

HParam

public HParam()

Method Detail

setFastMath

public static void setFastMath(boolean fast)

Set fast math calculation (3-5 times faster than Java Math). The typical precision is E-14 for fast calculations. The default does not use fast calculations.

Parameters:

fast - if false, all elementary functions are calculated with the standard Java Math precision. If true, fast calculation with the jafama FastJava E-11 precision.

isFastMath

public static boolean isFastMath()

Check is fast math calculation enabled.

Returns:

is fast calculation enabled?

setFastMath

public static void setFastMath()

Set fast math calculation (4-5 times faster than Java Math). The typical precision is E-14 for fast calculations.

setExactMath

public static void setExactMath()

Set exact math calculation using Java Math.