# Category:Hyperbolic Cosine Function

This category contains results about Hyperbolic Cosine Function.

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

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

## Also see

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

## Subcategories

This category has the following 8 subcategories, out of 8 total.