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kotlin-stdlib / kotlin.math / acosh

acosh

Common

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Native

1.2

fun acosh(x: Double): Double
(Common source) (JVM source) (JS source) (Native source)

fun acosh(x: Float): Float
(Common source) (JVM source) (JS source) (Native source)

Computes the inverse hyperbolic cosine of the value x.

The returned value is positive y such that cosh(y) == x.

Special cases:

acosh(NaN) is NaN
acosh(x) is NaN when x < 1
acosh(+Inf) is +Inf