Normal Distribution Function (Algorithm 226) CACM May, 1964 Cyvin, S. J. CA640508 JB March 9, 1978 11:58 PM 1081 5 1081 1081 5 1081 1081 5 1081 1157 5 1081 836 6 1081 1081 6 1081 485 6 1081 714 6 1081