# Category:Definitions/Hyperbolic Secant Function

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This category contains definitions related to Hyperbolic Secant Function.
Related results can be found in Category: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:

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

## Pages in category "Definitions/Hyperbolic Secant Function"

The following 7 pages are in this category, out of 7 total.