Definition:Inverse Hyperbolic Tangent/Complex

Definition
Let $\tanh: \C \to \C$ denote the hyperbolic tangent as defined on the set of complex numbers.

Also see

 * Equivalence of Definitions of Inverse Hyperbolic Tangent


 * Definition:Inverse Hyperbolic Sine
 * Definition:Inverse Hyperbolic Cosine
 * Definition:Inverse Hyperbolic Cotangent
 * Definition:Inverse Hyperbolic Secant
 * Definition:Inverse Hyperbolic Cosecant