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Acoth

ACOTH Function

The ACOTH function in Excel returns the inverse hyperbolic cotangent of a number. It is used to calculate the arc hyperbolic cotangent and works only for numbers which are greater than 1 or less than -1.

Syntax:

ACOTH(number)
  • number: This is a required argument. It represents the value for which you want to calculate the inverse hyperbolic cotangent. The function is defined only for values greater than 1 or less than -1.

Examples:

  1. =ACOTH(2) would return approximately 0.5493.
  2. =ACOTH(-2) would return approximately -0.5493.
  3. =ACOTH(A1) would calculate the inverse hyperbolic cotangent of the value in cell A1 (provided the value in A1 is greater than 1 or less than -1).

Note: If the input number is between -1 and 1 (inclusive), Excel will return a #NUM! error, as the inverse hyperbolic cotangent is undefined in this range.