b = log(s) : natural logarithm value of iFunc object @iFunc/log function to return the natural logarithm value of data sets, ln(s) Use log10 for the base 10 log. input: s: object or array (iFunc) output: b: object or array (iFunc) ex: b=log(a); Version: Aug. 22, 2017 See also iFunc, iFunc/exp, iFunc/log, iFunc/log10, iFunc/sqrt