Documentation/How Tos/Calc: ACOSH function
From Apache OpenOffice Wiki
ACOSH
Returns the inverse hyperbolic cosine of a number.
Syntax:
ACOSH(number)
- returns the inverse hyperbolic cosine of number, in other words the number whose hyperbolic cosine is number.
- number must be greater than or equal to 1.
Example:
ACOSH(1)
- returns 0.
ACOSH(COSH(4))
- returns 4.
