、正态分布的密度函数exp(-x^2)是唯一的一个傅立叶变换不变函数。用概率论的语言讲,就是正态分布的密度函数跟它的特征函数(c
回答: %B = (Close - Lower Band) / (Upper Band - Lower Band),
由 marketreflections
于 2011-03-22 17:41:08
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