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Calculates the inverse hyperbolic cosine (area hyperbolic cosine) of a value.

Syntax

Parameters

Return Type

ACOSH returns a value of type DOUBLE_PRECISION. It is defined for arguments greater than or equal to 1; an argument below 1 raises an out-of-range error.

Example

ACOSH is defined from 1 upwards, and ACOSH(1) is 0:

Rows: 1Execution time: 5.21ms

ACOSH undoes COSH, and COSH(LN(2)) is 1.25, so this returns LN(2):

Rows: 1Execution time: 5.21ms