JavaScript sin() Method

Return the sine of a number:

Math.sin(3);

More "Try it Yourself" examples below.

Definition and Usage

The sin() method returns the sine of a number.

Note: This method returns a value between -1 and 1, which represents the sine of the parameter x.

Method
sin()	Yes	Yes	Yes	Yes	Yes

Math.sin(x)

Parameter	Description
x	Required. A number

Return Value:	A Number, from -1 to 1, representing the sine of an angle, or NaN if the value is empty
JavaScript Version:	ECMAScript 1

Return the sine of different numbers:

var a = Math.sin(3);
var b = Math.sin(-3);
var c = Math.sin(0);
var d = Math.sin(Math.PI);
var e = Math.sin(Math.PI / 2);