public static void main(String[] args) {
double pi = 0;
for (double i = 1; i < 9999999; i += 4) {
// TODO
pi += (1 / i) - (1 / (i + 2));
}
System.out.println(4 * pi);
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陆佩廷
public static void main(String[] args) {
double pi = 0;
for (double i = 1; i < 9999999; i += 4) {
// TODO
pi += (1 / i) - (1 / (i + 2));
}
System.out.println(4 * pi);
}