asin()

Learn how to use the asin() function to calculate the angle from a sine input.

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

Syntax

asin(x)

Parameters

NameTypeRequiredDescription
xreal✔️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