X's 在英文书籍中,看到数学符号X's,在书中是有这么一段:(X's or ε's,where X= 2ε-1,and so Sn = X1 +...+Xn = 2(ε1 +...+ εn)-n)这里还有一句,This test makes use of that approximation to assess the closeness of the fraction
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![X's 在英文书籍中,看到数学符号X's,在书中是有这么一段:(X's or ε's,where X= 2ε-1,and so Sn = X1 +...+Xn = 2(ε1 +...+ εn)-n)这里还有一句,This test makes use of that approximation to assess the closeness of the fraction](/uploads/image/z/1940432-32-2.jpg?t=X%27s+%E5%9C%A8%E8%8B%B1%E6%96%87%E4%B9%A6%E7%B1%8D%E4%B8%AD%2C%E7%9C%8B%E5%88%B0%E6%95%B0%E5%AD%A6%E7%AC%A6%E5%8F%B7X%27s%2C%E5%9C%A8%E4%B9%A6%E4%B8%AD%E6%98%AF%E6%9C%89%E8%BF%99%E4%B9%88%E4%B8%80%E6%AE%B5%EF%BC%9A%28X%27s+or+%CE%B5%27s%2Cwhere+X%3D+2%CE%B5-1%2Cand+so+Sn+%3D+X1+%2B...%2BXn+%3D+2%28%CE%B51+%2B...%2B+%CE%B5n%29-n%29%E8%BF%99%E9%87%8C%E8%BF%98%E6%9C%89%E4%B8%80%E5%8F%A5%EF%BC%8CThis+test+makes+use+of+that+approximation+to+assess+the+closeness+of+the+fraction)
X's 在英文书籍中,看到数学符号X's,在书中是有这么一段:(X's or ε's,where X= 2ε-1,and so Sn = X1 +...+Xn = 2(ε1 +...+ εn)-n)这里还有一句,This test makes use of that approximation to assess the closeness of the fraction
X's 在英文书籍中,看到数学符号X's,
在书中是有这么一段:
(X's or ε's,where X= 2ε-1,and so Sn = X1 +...+Xn = 2(ε1 +...+ εn)-n)
这里还有一句,This test makes use of that approximation to assess the closeness of the fraction of 1's to 1/2 .
这里的1's有代表什么意思呢?
出处是《A STATIISTIICAL TEST SUIITE FOR RANDOM AND PSEUDORANDOM NUMBER GENERATORS FOR CRYPTOGRAPHIIC APPLIICATIIONS》,NIST Special Publication 800-22。
X's 在英文书籍中,看到数学符号X's,在书中是有这么一段:(X's or ε's,where X= 2ε-1,and so Sn = X1 +...+Xn = 2(ε1 +...+ εn)-n)这里还有一句,This test makes use of that approximation to assess the closeness of the fraction
这是一个数学公式 x和ε都表示未知数,如果ε你看着不爽可以用y,只不过是一个代号而已.题目中会给你n的值.Sn指n个数的和.如:
若 X= 2ε-1 则 Sn = X1 +...+Xn = 2[(ε1 +...+ εn)-n]