CommandsinverseErfcOn this pageinverseErfc inverseErfc (x) The inverseErfc function returns the inverse of the complementary error function. Details The function is calculated using rational approximations in several regions followed by one iteration of Halley's algorithm. See Also Statistical Analysis erf, erfc, erfcw, dawson, inverseErf StatsNormalPDF, StatsNormalCDF, StatsInvNormalCDF