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可行

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Ashen One

#1 Created at ... [Delete] [Delete and Lock User]

double temp = 0;
for (double i = 1,j=1;j<100000000;i=i+2,j++)

{

temp = (double) temp +(double) Math.pow(-1,j+1)*(double) (1/i);
}

double pi = 4*temp;
System.out.println(pi);


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