Class JSMath

java.lang.Object

org.fife.rsta.ac.js.ecma.api.ecma3.JSMath

public abstract class JSMath
extends Object

Object Math

Since:

Standard ECMA-262 3rd. Edition

Field Summary

Fields

Modifier and Type	Field	Description
static JSNumber	E	property E the constant e, the base of the natural logarithm.
static JSNumber	LN10	property LN10 the natural logarithm of 10.
static JSNumber	LN2	property LN2 the natural logarithm of 2.
static JSNumber	LOG10E	property LOG10E the base-10 logarithm of e.
static JSNumber	LOG2E	property LOG2E the base-2 logarithm of e.
static JSNumber	PI	property PI The constant PI.
static JSNumber	SQRT1_2	property SQRT1_2 the number 1 divided by the square root of 2.
static JSNumber	SQRT2	property SQRT2 the square root of 2.

Constructor Summary

Constructors

Constructor	Description
JSMath()

Method Summary

Modifier and Type	Method	Description
static JSNumber	abs(JSNumber x)	function abs(x) computes an absolute value.
static JSNumber	acos(JSNumber x)	function acos(x) compute an arccosine
static JSNumber	asin(JSNumber x)	function asin(x) compute an arcsine
static JSNumber	atan(JSNumber x)	function atan(x) compute an arctangent
static JSNumber	atan2(JSNumber y, JSNumber x)	function atan2(x,y) compute the angle from the X axis to a point.
static JSNumber	ceil(JSNumber x)	function ceil(x) round a number up.
static JSNumber	cos(JSNumber x)	function cos(x) compute a cosine.
static JSNumber	exp(JSNumber x)	function exp(x) compute Ex.
static JSNumber	floor(JSNumber x)	function floor(x) round a number down.
static JSNumber	log(JSNumber x)	function log(x) compute a natural logarithm.
static JSNumber	max(JSNumber args)	function max(args) Return the largest argument.
static JSNumber	min(JSNumber args)	function min(args) return the smallest argument.
static JSNumber	pow(JSNumber x, JSNumber y)	function pow(x,y) compute Xy
static JSNumber	random()	function random() return a pseudorandom number
static JSNumber	round(JSNumber x)	function round(x) round to the nearest integer.
static JSNumber	sin(JSNumber x)	function sin(x) compute a sine.
static JSNumber	sqrt(JSNumber x)	function sqrt(x) compute a square root.
static JSNumber	tan(JSNumber x)	function tan(x) compute a tangent.

Methods inherited from class Object

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

Field Details

E

public static JSNumber E

property E the constant e, the base of the natural logarithm.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

LN10

public static JSNumber LN10

property LN10 the natural logarithm of 10.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

LN2

public static JSNumber LN2

property LN2 the natural logarithm of 2.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

LOG2E

public static JSNumber LOG2E

property LOG2E the base-2 logarithm of e.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

LOG10E

public static JSNumber LOG10E

property LOG10E the base-10 logarithm of e.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

PI

public static JSNumber PI

property PI The constant PI.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

SQRT1_2

public static JSNumber SQRT1_2

property SQRT1_2 the number 1 divided by the square root of 2.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

SQRT2

public static JSNumber SQRT2

property SQRT2 the square root of 2.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

Constructor Details

JSMath

public JSMath()

Method Details

abs

public static JSNumber abs(JSNumber x)

function abs(x) computes an absolute value.

Parameters:

x - any number

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

acos

public static JSNumber acos(JSNumber x)

function acos(x) compute an arccosine

Parameters:

x - a number between -1.0 and 1.0

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

asin

public static JSNumber asin(JSNumber x)

function asin(x) compute an arcsine

Parameters:

x - a number between -1.0 and 1.0

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

atan

public static JSNumber atan(JSNumber x)

function atan(x) compute an arctangent

Parameters:

x - Any number

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

atan2

public static JSNumber atan2(JSNumber y,
 JSNumber x)

function atan2(x,y) compute the angle from the X axis to a point.

Parameters:

y - The Y coordinate of the point

x - The X coordinate of the point

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

ceil

public static JSNumber ceil(JSNumber x)

function ceil(x) round a number up.

Example

a = Math.ceil(1.99); //returns 2.0
b = Math.ceil(1.01); //returns 2.0
c = Math.ceil(1.0) //returns 1.0
d = Math.ceil(-1.99); //returns -1.0

Parameters:

x - any number or numeric value.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

cos

public static JSNumber cos(JSNumber x)

function cos(x) compute a cosine.

Parameters:

x - an angle, measured in radians.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

exp

public static JSNumber exp(JSNumber x)

function exp(x) compute E^x.

Parameters:

x - a numeric value or expression.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

floor

public static JSNumber floor(JSNumber x)

function floor(x) round a number down.

Example

a = Math.floor(1.99); //returns 1.0
b = Math.floor(1.01); //returns 1.0
c = Math.floor(1.0) //returns 1.0
d = Math.floor(-1.99); //returns -2.0

Parameters:

x - any number or numeric value.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

log

public static JSNumber log(JSNumber x)

function log(x) compute a natural logarithm.

Parameters:

x - any number or numeric value greater than 0.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

max

public static JSNumber max(JSNumber args)

function max(args) Return the largest argument.

Parameters:

args - Zero or more values

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

min

public static JSNumber min(JSNumber args)

function min(args) return the smallest argument.

Parameters:

args - Any number of arguments

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

pow

public static JSNumber pow(JSNumber x,
 JSNumber y)

function pow(x,y) compute X_y

Parameters:

x - The number to be raised to a power.

y - The power that x to be raised to.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

random

public static JSNumber random()

function random() return a pseudorandom number

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

round

public static JSNumber round(JSNumber x)

function round(x) round to the nearest integer.

Parameters:

x - Any number.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

sin

public static JSNumber sin(JSNumber x)

function sin(x) compute a sine.

Parameters:

x - An angle, in radians.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

sqrt

public static JSNumber sqrt(JSNumber x)

function sqrt(x) compute a square root.

Parameters:

x - a numeric value greater than or equal to zero.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number

tan

public static JSNumber tan(JSNumber x)

function tan(x) compute a tangent.

Parameters:

x - An angle, in radians.

Since:

Standard ECMA-262 3rd. Edition, Level 2 Document Object Model Core Definition.

See Also:

• Number