JavaScript Objects The Math Object- Math asin() - Javascript Objects

What is JavaScript - Math asin Method?

JavaScript - Math asin Method returns the arcsine in radians of a number. The asin method will return a numeric value between -pi/2 and pi/2 radians for x between -1 and 1. If the value of the number is outside the range given, then it returns NaN.

Syntax

Its syntax is as below −

Parameter Details

x − A number.

Return Value

It Returns the arcsine in radians of a number.


Example

Try the following sample example program.

Output

First Test Value : -1.5707963267948966

Second Test Value : 0

Third Test Value : NaN

Fourth Test Value : NaN


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