# ACOSH

## Content

This function calculates the inverse hyperbolic cosine of the specified value.

## Syntax

`ACOSH(value)`

## Arguments

[Required] For the argument, you can specify any real number greater than or equal to 1.

## Remarks

This function is the inverse of the hyperbolic cosine, so `ACOSH(COSH(n))` gives the result *n* .

## Examples

`ACOSH(B3)`
`ACOSH(R3C2)`
`ACOSH(1)` gives the result 0
`ACOSH(10)` gives the result 2.9932228461
`ACOS(R3C2)`