>On math rules, if Round(,n) are equals then Round(,n-1) are equals. >
n = 4 ?round(3.42049, n), round(3.42050, n), round(3.42049, n) = round(3.42050, n) ?round(3.42049, n-1), round(3.42050, n-1), round(3.42049, n-1)= round(3.42050, n-1)