公共?班級?答?{
公共?靜電?作廢?main(String[]?args)?{
雙倍?m = 1;
雙倍?sum = 0;
int?I = 1;
int?t = 1;
while(m & gt;=0.0001){
sum = sum+t * m;
m = 1.0/(2 * I+1);
t = t *(1);
i++;
}
system . out . println(string . format(" % . 5f ",?sum * 4));
}運行結果
3.14139