# MS Excel: ACOSH Function (WS)

This Excel tutorial explains how to use the Excel ACOSH function with syntax and examples.

## Description

The Microsoft Excel ACOSH function returns the inverse hyperbolic cosine of a number.

## Syntax

The syntax for the Microsoft Excel ACOSH function is:

`ACOSH( number )`

### Parameters or Arguments

number is a number greater than or equal to 1.

## Applies To

The ACOSH function can be used in the following versions of Microsoft Excel:

• Excel 2013, Excel 2011 for Mac, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000

## Type of Excel Function

The ACOSH function can be used in Microsoft Excel as the following type of function:

• Worksheet function (WS)

## Example (as Worksheet Function)

Let's look at some Excel ACOSH function examples and explore how to use the ACOSH function as a worksheet function in Microsoft Excel: Based on the spreadsheet above, the following Excel ACOSH examples would return:

```=ACOSH(A1)
Result: 0

=ACOSH(A2)
Result: 0.96242365

=ACOSH(A3)
Result: 2.633915794

=ACOSH(20.76)
Result: 3.725594657```

Source: www.tutorialspoint.com

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