%ierfc(x),  first integrated complementary error function.  
% Author: J.V. Beck, 10 10 11,
% Ref. "Heat Cond. Using GF", Cole et al. p.501, Eq E14b
% x is any real number
function [ierf]=ierfc(x)
ierf=(1/sqrt(pi))*exp(-x.*x)-x.*erfc(x);
