The ACOSH function returns the hyperbolic arccosine of a number.

This function takes a single Number as input. It outputs that Number's inverse hyperbolic cosine.


ACOSH(number) -> hyperbolic_arccosine



number (required, type: Number)
The number to calculate the hyperbolic arccosine for.

Return Values

hyperbolic_arccosine (type: Number)
The hyperbolic arccosine of the given number.


The following example returns the hyperbolic arccosine of 1:

ACOSH(1) -> 0

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