Definition:Hyperbolic Secant

Real Hyperbolic Secant
On the real numbers it is defined similarly.

Also see

 * Equivalence of Definitions of Hyperbolic Secant


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