acos

inline actual fun acos(x: Double): Double (source)

Platform and version requirements: Kotlin 1.2

inline actual fun acos(x: Float): Float (source)

Platform and version requirements: Kotlin 1.2

Computes the arc cosine of the value x; the returned value is an angle in the range from 0.0 to PI radians.

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