CosH (hyperbolic cosinus)

---

Returns hyperbolic cosine of given value.

Formula of the function:

CosH(n) = (e^n + e^(-n))/2

where "e" (Euler's number) ~ 2,71828182845904

syntax

CosH(number)

input

real number

returns

real number

example

CosH(2) = 3,76219569108363146