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Related Functions:  ASINH Function ATANH Function COSH Function

Basic Description

The Excel ACOSH function calculates the inverse hyperbolic cosine of a supplied number.

The format of the function is :

Where the number argument is a positive real number, which must be greater than or equal to 1, and which you want to calculate the inverse hyperbolic cosine of.

The number argument can be input to the function either :

-	directly
-	as a value returned from another function or formula, or
-	as a reference to a cell containing a value

Examples

Column B of the spreadsheet below, shows examples of the Excel Acosh Function, used to calculate the inverse hyperbolic cosine of three different values.

The formulas are shown in the spreadsheet on the left and the results are shown in the spreadsheet on the right.

Further information and examples of the Excel Acosh function can be found on the Microsoft Office website.

Trouble Shooting

If you get an error from the Excel Acosh Function, this is likely to be one of the following: