A to Z of Excel Functions: The ACOTH Function

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

The syntax for this Excel function is as follows:

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.

A full page of the function articles can be found here.