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jiyukun268

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Mr__Right

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jiyukun268

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3Â¥: Originally posted by Mr__Right at 2016-11-23 20:26:13
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f(x;\mu,\sigma)=\frac{1}{ x\sigma\sqrt{2 \pi}}e^{-(\ln x -\mu)^2/2\sigma^2}

https://zh.wikipedia.org/wiki/%E5%AF%B9%E6%95%B0%E6%AD%A3%E6%80%81%E5%88%86%E5%B8%83#/medi ...

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