求对给定数据集估计PI 的值

具体过程是：

给定数据集中任意取两个数组成一对数的取法有

( )

2

C2 n 1 n n

−

= 种，求出这

( )

2

n − 1 n

对数中

两个数互素的对数Count 。再利用公式

2

( 1)

6

2 −

=

n n

Count

π

推出

Count

3n(n − 1)

π = 。-right for the given data set is estimated that the value of PI specific process : determined to concentrate on data from two arbitrary number of components of a number of copying it () C2 2 1 n n n