Platform and version requirements: JVM (1.2), JS (1.2), Native (1.2)

fun asin(x: Double): Double

fun asin(x: Float): Float

Computes the arc sine of the value x; the returned value is an angle in the range from -PI/2 to PI/2 radians.

Special cases: - asin(x) is NaN, when abs(x) > 1 or x is NaN