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ACOSH
Returns the inverse hyperbolic cosine of a number. 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)
Number is any real number equal to or greater than 1.
Example
The example may be easier to understand if you copy it to a blank spreadsheet.
How?
- Create a blank spreadsheet.
- Select the example in the Help topic.
Selecting an example from Help
- Press CTRL+C.
- In the spreadsheet, select cell A1, and press CTRL+V.
- To switch between viewing the formula that returns the result and the result in the cell, select the cell and press F2 and then ENTER, or click Commands and Options on the spreadsheet toolbar, click the Formula tab, and look in the Formula in active cell (active cell) box.
| Formula | Description (Result) |
|---|---|
| =ACOSH(1) | Inverse hyperbolic cosine of 1 (0) |
| =ACOSH(10) | Inverse hyperbolic cosine of 10 (2.993223) |