摘要:
网上找来的 mark之No need for anything fancy. Any platform with a good C99 math library (like the iphone) already has everything you need -- specifically theerfcfunction, which is a slight variant:#import double cumulativeNormal(double x){return0.5* erfc(-x * M_SQRT1_2);}Note this is for the standard norma 阅读全文
posted @ 2014-04-06 11:46
ImpGeek
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