ACOSH (Number) ACOSH (Number)

Number

Number Number

The input number, which must be greater than or equal to 1.

Returns

Number Number

The inverse hyperbolic cosine.

Returns the inverse hyperbolic cosine of a number. This is the inverse of COSH. The input must be greater than or equal to 1, and the result is always non-negative.

Example

ACOSH (10)
ACOSH (10)

Returns roughly 2.993.

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