ACOSH
Applies to: 
Calculated column
Calculated table
Measure
Visual calculation
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)
Parameters
| Term | Definition |
|---|---|
| number | Any real number equal to or greater than 1. |
Return value
Returns the inverse hyperbolic cosine of a number.
Remarks
This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules.
Example
| Formula | Description | Result |
|---|---|---|
| = ACOSH(1) | Inverse hyperbolic cosine of 1. | 0 |
| = ACOSH(10) | Inverse hyperbolic cosine of 10. | 2.993228 |