|+街道口地痞-

用高数的二种方法求圆周率 1.利用收敛级数求和 代码: public class π1 { public static void main(String[] args) { double pai = 0; boolean flag = true; double temp = (double) 1 / 1000000000; for (double i = 1, j = 1; flag; i = i + 2, j++) {