Saturday, May 21, 2022

Acosh function

This article describes the formula syntax and usage of the ACOSH function in Microsoft Excel.

Description

Returns the inverse hyperbolic cosine of a number. The number must be greater than or equal to 1. The inverse hyperbolic cosine is the value whose hyperbolic cosine is number, so ACOSH(COSH(number)) equals number.

Syntax

ACOSH(number)

The ACOSH function syntax has the following arguments:

  • Number    Required. Any real number equal to or greater than 1.

Example

Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. For formulas to show results, select them, press F2, and then press Enter. If you need to, you can adjust the column widths to see all the data.

Formula

Description

Result

=ACOSH(1)

Inverse hyperbolic cosine of 1

0

=ACOSH(10)

Inverse hyperbolic cosine of 10

2.9932228

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