com.opengamma.strata.math

Class MathUtils

java.lang.Object

com.opengamma.strata.math.MathUtils

public final class MathUtils
extends Object

Simple utilities for maths.

Method Summary

Modifier and Type	Method and Description
static boolean	nearOne(double value, double tolerance) Checks if a number is near one.
static boolean	nearZero(double value, double tolerance) Checks if a number is near zero.
static double	pow2(double value) Returns the power of 2 (square).
static double	pow3(double value) Returns the power of 3 (cube).
static double	pow4(double value) Returns the power of 4.

Methods inherited from class java.lang.Object

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

Method Detail

pow2

public static double pow2(double value)

Returns the power of 2 (square).

Parameters:

value - the value to check

Returns:

value * value

pow3

public static double pow3(double value)

Returns the power of 3 (cube).

Parameters:

value - the value to check

Returns:

value * value * value

pow4

public static double pow4(double value)

Returns the power of 4.

Parameters:

value - the value to check

Returns:

value * value * value * value

nearZero

public static boolean nearZero(double value,
                               double tolerance)

Checks if a number is near zero.

NaN and infinity are not near zero.

Parameters:

value - the value to check

tolerance - the tolerance, must be positive and not NaN/Infinite (not validated)

Returns:

true if near zero

nearOne

public static boolean nearOne(double value,
                              double tolerance)

Checks if a number is near one.

NaN and infinity are not near one.

Parameters:

value - the value to check

tolerance - the tolerance, must be positive and not NaN/Infinite (not validated)

Returns:

true if near one