# Category:Hyperbolic Secant Function

This category contains results about Hyperbolic Secant Function.
Definitions specific to this category can be found in Definitions/Hyperbolic Secant Function.

The hyperbolic secant function is defined on the complex numbers as:

$\sech: X \to \C$:
$\forall z \in X: \sech z := \dfrac 2 {e^z + e^{-z} }$

where:

$X = \set {z: z \in \C, \ e^z + e^{-z} \ne 0}$

## Also see

Category:Hyperbolic Sine Function
Category:Hyperbolic Cosine Function
Category:Hyperbolic Tangent Function
Category:Hyperbolic Cotangent Function
Category:Hyperbolic Cosecant Function

## Subcategories

This category has the following 4 subcategories, out of 4 total.

## Pages in category "Hyperbolic Secant Function"

The following 18 pages are in this category, out of 18 total.