# ACOTH function

The ACOTH function returns the inverse hyperbolic cotangent of a value in radians.

## Parts of an ACOTH function

`ACOTH(value)`

 Part Description Notes `value` The value for which to calculate the inverse hyperbolic cotangent. Values must not be a number between -1 and 1.

## Sample formulas

`ACOTH(2)`

`ACOTH(10)`

`ACOTH(A1)`

## Notes

• If a number between -1 and 1 is passed to ACOTH, then the #NUM error is returned.
• ACOTH is sometimes written as "arccoth" or "coth-1(x)" in mathematics or other programs.
• Use the DEGREES function to convert the result of ACOTH from radians to degrees.

## Examples

 A B C 1 Date Formula Result 2 4 =ACOTH(A2) 0.2554128119 3 -4 =ACOTH(A3) -0.2554128119 4 =ACOTH(10) 0.1003353477

## Related functions

• ACOT: The ACOT function returns the inverse cotangent of a value in radians.
• COTH: The COTH function returns the hyperbolic cotangent of any real number.
• COT: The COT function returns the cotangent of an angle provided in radians.
• ATANH: The ATANH function returns the inverse hyperbolic tangent of a number.
• ATAN: The ATAN function returns the inverse tangent of a value in radians.
• ASINH: The ASINH function returns the inverse hyperbolic sine of a number.
• ASIN: The ASIN function returns the inverse sine of a value in radians.
• ACOSH: The ACOSH function returns the inverse hyperbolic cosine of a number.
• ACOS: The ACOS function returns the inverse cosine of a value in radians.
• DEGREES: The DEGREES function converts an angle value in radians to degrees.