b = uminus(s) : opposite value of iFunc object @iFunc/uminus function to return the opposite value of data sets, i.e. b=-s. input: s: object or array (iFunc) output: b: object or array (iFunc) ex: b=uminus(a); Version: Aug. 22, 2017 See also iFunc, iFunc/uminus, iFunc/abs, iFunc/real, iFunc/imag, iFunc/uplus