JavaScript - Math.asin() Method
The JavaScript Math.asin() method returns arc sine of a value. The returned value will be in the range -𝜋/2 through 𝜋/2.
Syntax
Math.asin(x)
Parameters
x |
Specify the value in range [-1, 1]. |
Return Value
Returns the arc sine of the value.
If the x is not in the range of [-1, 1], it returns NaN.
Example:
In the example below, Math.asin() method is used to find out the arc sine of a given value.
var txt; txt = "Math.asin(0.25) = " + Math.asin(0.25) + "<br>"; txt = txt + "Math.asin(0.5) = " + Math.asin(0.5) + "<br>"; txt = txt + "Math.asin(1) = " + Math.asin(1) + "<br>";
The output (value of txt) after running above script will be:
Math.asin(0.25) = 0.25268025514207865 Math.asin(0.5) = 0.5235987755982989 Math.asin(1) = 1.5707963267948966
❮ JavaScript - Math Object
