asin()

Calculates the angle whose sine is the specified number, or the arc sine. This is the inverse operation of sin().

Syntax

asin(x)

Learn more about syntax conventions.

Parameters

Name Type Required Description
x real ✔️ A real number in range [-1, 1] used to calculate the arc sine.

Returns

Returns the value of the arc sine of x. Returns null if x < -1 or x > 1.

Example

asin(0.5)

Output

result
1.2532358975033751