b = atanh(s) : computes the inverse hyperbolic tangent of iData object @iData/atanh function to compute the inverse hyperbolic tangent of data sets. input: s: object or array (iData) output: b: object or array (iData) ex: b=atanh(a); Version: Aug. 22, 2017 See also iData, iData/cos, iData/acos, iData/sin, iData/asin, iData/tan, iData/atan