The ACOSH function returns the hyperbolic arccosine of a number.
This function is often used in mathematical and engineering calculations where trigonometric functions are required.
Syntax
ACOSH(value)
Argument |
Description |
Permitted values |
|---|---|---|
value |
The value for which the hyperbolic arccosine needs to be calculated |
Number ≥ 1 or a reference to a cell containing a number |
Examples of use
Calculation of hyperbolic arcsine for 1:
=ACOSH(1)
Result: 0.
Attempt to use a number less than 1:
=ACOSH(0.5)
The expression will return the #NUM! error, since the hyperbolic arccosine is only defined for numbers ≥1.
Notes
–The ACOSH function is undefined for numbers less than 1.
–The function returns a value in radians.