Usage: z_normal(s,mu,sigma); 7 x l9 {/ \: E1 n) @* \
The expression s (integer) defines the random number stream, while mu and sigma define mean and deviation of the normal distribution.6 z- l6 a5 x3 s3 ^% ?2 n8 J
里面的s表示什么意思啊? 3 t+ o- S5 ~ _- P' Y' e# a5 M我主要是The expression s (integer) defines the random number stream中的stream不太理解。: j. ^/ y* h5 R7 u* H- L
谢谢各位帮忙!6 O: H: e/ |9 J4 i5 X3 x