kotlin-stdlib / kotlin.math / expm1 expm1 Common JVM JS Native 1.2 fun expm1 ( x : Double ) : Double (Common source) (JVM source) (JS source) (Native source) fun expm1 ( x : Float ) : Float (Common source) (JVM source) (JS source) (Native source) Computes exp(x) - 1 . This function can be implemented to produce more precise result for x near zero. Special cases: expm1(NaN) is NaN expm1(+Inf) is +Inf expm1(-Inf) is -1.0 See Also exp