Definition:Inverse Hyperbolic Secant/Real

Definition
Let $S$ denote the half-open real interval:
 * $S := \hointl 0 1$

Also see

 * Equivalence of Definitions of Real Inverse Hyperbolic Secant


 * Definition:Real Inverse Hyperbolic Sine
 * Definition:Real Inverse Hyperbolic Cosine
 * Definition:Real Inverse Hyperbolic Tangent
 * Definition:Real Inverse Hyperbolic Cotangent
 * Definition:Real Inverse Hyperbolic Cosecant