How to use the Excel ACOSH function

The ACOSH function is a built-in function in Excel that is categorized as a Math/Trig Function. It can be used as a worksheet function (WS) in Excel. As a worksheet function, the ACOSH function can be entered as part of a formula in a cell of a worksheet.

Syntax: =ACOSH( number )

The ACOSH function syntax has the following arguments:

  • number: The number you want the inverse hyperbolic cosine of.

Example: Let’s look at some Excel ACOSH function examples and explore how to use the ACOSH function as a worksheet function in Microsoft Excel:

Excel ACOSH function - How to use the Excel ACOSH function

Syntax:  =ACOSH(C2)

Result:

Excel ACOSH function 1 - How to use the Excel ACOSH function

Based on the Excel spreadsheet above, the following ACOSH examples would return:

Syntax: =ACOSH(C3)
Result: #NUM!

Syntax: =ACOSH(C4)
Result: 2.633915794

Syntax: =ACOSH(C5)
Result: #NUM!

Syntax: =ACOSH(C6)
Result: 2.768659383

Syntax: =ACOSH(C7)
Result: #NUM!

Syntax: =ACOSH(C8)
Result: 0

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