ACOSH

  • Article
Archived content. No warranty is made as to technical accuracy. Content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.

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

Formula

Description (Result)

=ACOSH(1)

Inverse hyperbolic cosine of 1 (0)

=ACOSH(10)

Inverse hyperbolic cosine of 10 (2.993223)