ACOSH

Returns the inverse hyperbolic cosine of the specified number. The inverse hyperbolic cosine is the value whose hyperbolic cosine is n, so ACOSH(COSH(n)) equals n.

Syntax

ACOSH( Number n ) → Number

Parameters

n

Required. The number whose inverse hyperbolic cosine to find. Must be greater than or equal to 1.

Example

Formula

=ACOSH(1)
=ACOSH(10)

See Also

Function Reference
ACOS Function
COSH Function
ASINH Function