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A to Z of Excel Functions: the ACOTH Function

5 July 2016

This ACOTH function returns the inverse hyperbolic cotangent of a number, which is defined as

The syntax for this Excel function is as follows:

=ACOTH(number)

Arguments:

  • number: the absolute value of number must be greater than 1.

Some things to remember:

  • the hyperbolic arccotangent is an analogue of the ordinary (circular) arccotangent
  • if number is less than 1, ACOTH returns the #NUM! error value
  • if the absolute value of number is less than 1, ACOT returns the #VALUE! error value.

Please see an example below:

We’ll continue our A to Z of Excel Functions soon.  Keep checking back – there’s a new blog post every other business day.

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