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Lessons JavaScript Math Object Functions and Properties Bookmark and Share
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The Math object is yet another built-in JavaScript object that includes a number of useful math constants and functions.

We do not need to create a Math object in JavaScript to work with. In JavaScript, it is available automatically.

The Math object's properties represent mathematical constants e.g. PI, E etc., and its methods are mathematical functions e.g. cos(), floor(), log() etc.

The following table lists the properties of the Math object:
Property Description
E The constant of E, the base of natural logarithms
LN2 The natural logarithm of 2
LN10 The natural logarithm of 10
LOG2E Base 2 logarithm of E
LOG10E Base 10 logarithm of E
PI Returns the value of PI
SQRT1_2 Square root of 1/2
SQRT2 Square root of 2

The following table lists the methods / functions of the Math object:
Methods Description
abs(x) Returns absolute value of x.
acos(x) Returns arc cosine of x in radians
asin(x) Returns arc sine of x in radians
atan(x) Returns arc tan of x in radians
atan2(y, x) Counterclockwise angle between x axis and point (x, y)
ceil(x) Returns the smallest integer greater than or equal to x
cos(x) Returns cosine of x, where x is in radians
exp(x) Returns ex
floor(x) Returns the largest integer less than or equal to x
log(x) Returns the natural logarithm (base E) of x
max(a, b) Returns the maximum of a and b
min(a, b) Returns the minimum of a and b
pow(x, y) Returns Xy
random() Returns a pseudorandom number between 0 and 1
round(x) Rounds x up or down to the nearest integer
sin(x) Returns the Sin of x, where x is in radians
sqrt(x) Returns the square root of x
tan(x) Returns the Tan of x, where x is in radians

Next >>> Lesson No. 36: JavaScript Boolean Object

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