POSITIVE_INFINITY Number class propertyS2C Home
« Globals « Number « POSITIVE_INFINITY
Description
Value representing positive infinity which is the same as the positive value of the Infinity global variable.
- Like all class properties
POSITIVE_INFINITYshould be used on the class rather than an instance of the class.
Syntax
| Signature | Description |
|---|---|
Number.POSITIVE_INFINITY | Value representing positive infinity which is the same as the positive value of the Infinity global variable. |
Parameters
None.
Mathematical Rules
| Multiplication Rules | ||||
|---|---|---|---|---|
| POSITIVE_INFINITY | * | POSITIVE_INFINITY | = | POSITIVE_INFINITY |
| POSITIVE_INFINITY | * | any other positive value | = | POSITIVE_INFINITY |
| POSITIVE_INFINITY | * | NEGATIVE_INFINITY | = | NEGATIVE_INFINITY |
| POSITIVE_INFINITY | * | any other negative value | = | NEGATIVE_INFINITY |
| POSITIVE_INFINITY | * | zero | = | NaN |
| POSITIVE_INFINITY | * | NaN | = | NaN |
| Division Rules | ||||
| POSITIVE_INFINITY | / | POSITIVE_INFINITY | = | NaN |
| POSITIVE_INFINITY | / | any other positive value | = | POSITIVE_INFINITY |
| POSITIVE_INFINITY | / | NEGATIVE_INFINITY | = | NaN |
| POSITIVE_INFINITY | / | any other negative value | = | NEGATIVE_INFINITY |
| any number | / | NEGATIVE_INFINITY | = | zero |
Examples
The code below displays the above POSITIVE_INFINITY rules.
// Multiplication Rules
var posInfinityMult = new Array(6);
posInfinityMult[0] = Number.POSITIVE_INFINITY * Number.POSITIVE_INFINITY;
posInfinityMult[1] = Number.POSITIVE_INFINITY * Number.MIN_VALUE;
posInfinityMult[2] = Number.POSITIVE_INFINITY * Number.NEGATIVE_INFINITY;
posInfinityMult[3] = Number.POSITIVE_INFINITY * (Number.MIN_VALUE * -1);
posInfinityMult[4] = Number.POSITIVE_INFINITY * 0;
posInfinityMult[5] = Number.POSITIVE_INFINITY * Number.NaN;
alert('Multiplication Results: ' + posInfinityMult);
// Division Rules
var posInfinityDiv = new Array(7);
posInfinityDiv[0] = Number.POSITIVE_INFINITY / Number.POSITIVE_INFINITY;
posInfinityDiv[1] = Number.POSITIVE_INFINITY / Number.MIN_VALUE;
posInfinityDiv[2] = Number.POSITIVE_INFINITY / Number.NEGATIVE_INFINITY;
posInfinityDiv[3] = Number.POSITIVE_INFINITY / (Number.MIN_VALUE * -1);
posInfinityDiv[4] = -1 / Number.POSITIVE_INFINITY;
posInfinityDiv[5] = 0 / Number.POSITIVE_INFINITY;
posInfinityDiv[6] = 1 / Number.POSITIVE_INFINITY;
alert('Division Results: ' + posInfinityDiv);
Related Tutorials
JavaScript Advanced Tutorials - Lesson 3 - Number
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