This function calculates the inverse hyperbolic tangent of a number.
ATANH(value)
For the argument, you can specify any real number between 1 and –1, excluding –1 and 1.
This function is the inverse of the hyperbolic tangent, so ATANH(TANH(n)) gives the result n.
Accepts numeric data. Returns numeric data.
ATANH(B5)
ATANH(R5C2)
ATANH(0.55) gives the resultlt 0.6183813136
ATANH(-0.2) gives the result -0.2027325541