Definition:Inverse Hyperbolic Cotangent/Complex

Definition
Let $S$ be the subset of the complex plane:
 * $S = \C \setminus \set {-1 + 0 i, 1 + 0 i}$

Also see

 * Equivalence of Definitions of Complex Inverse Hyperbolic Cotangent


 * Definition:Complex Inverse Hyperbolic Sine
 * Definition:Complex Inverse Hyperbolic Cosine
 * Definition:Complex Inverse Hyperbolic Tangent
 * Definition:Complex Inverse Hyperbolic Secant
 * Definition:Complex Inverse Hyperbolic Cosecant