describe
The ACOTH function returns the inverse hyperbolic cotangent of a number.
grammar
ACOTH (number)
debate
Argument | describe | Required/Optional |
---|---|---|
Number | The absolute value of Number must be greater than 1. i.e., Number must be must be less than -1 or greater than +1. | Required |
Notes
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The equation used to calculate the hyperbolic inverse cotangent is -
$$a\coth\left(x\right)=\frac {1} {2} Ln\frac {\left(x + 1\right)} {\left(x-1\right)} $$
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Hyperbolic inverse tangents are analogs of ordinary (circular) inverse tangents.
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If Number is less than 1, ACOTH returns #NUM! error value.
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If the absolute value of Number is less than 1, ACOT returns the #VALUE! error value.
applicability
Excel 2013,Excel 2016