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

fun tanh(x: Double): Double

fun tanh(x: Float): Float

Computes the hyperbolic tangent of the value x.

Special cases:

• tanh(NaN) is NaN
• tanh(+Inf) is 1.0
• tanh(-Inf) is -1.0