Package org.anchoranalysis.math.arithmetic

Class DoubleUtilities

Object

DoubleUtilities

public class DoubleUtilities
extends Object

Utilities for arithmetic operations involving type double.

Author:

Owen Feehan

Method Summary

Modifier and Type	Method	Description
static boolean	areEqual(double value1, double value2)	Are the two numbers equal, within a tolerance?
static double	divideByZeroReplace(double numerator, double denominator, double replaceWithIfZero)	Replaces a value with a constant if the denominator is 0.

Methods inherited from class java.lang.Object

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

Method Details

areEqual

public static boolean areEqual(double value1,
 double value2)

Are the two numbers equal, within a tolerance?

The tolerance is 1.000000013351432E-10f.

Parameters:

value1 - the first value.

value2 - the second value.

Returns:

true iff value1 and value2 differ by less than PrecisionConstants.EPSILON.

divideByZeroReplace

public static double divideByZeroReplace(double numerator,
 double denominator,
 double replaceWithIfZero)

Replaces a value with a constant if the denominator is 0.

Parameters:

numerator - numerator.

denominator - denominator.

replaceWithIfZero - what to replace with if zero.

Returns:

numerator divided denominator or replaceWithIfZero (if denominator is zero).