package com.itranswarp.learnjava;
public class Main {
public static void main(String[] args) {
double pi = 0;
for (int i = 1; i < 100000000; i++) {
switch (i % 2) {
case 1 -> pi = pi + 4 / (2*(double)i-1);
case 0 -> pi = pi - 4 / (2*(double)i-1);
}
System.out.println(pi);
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水晶小三四
package com.itranswarp.learnjava;
public class Main {
public static void main(String[] args) {
double pi = 0;
for (int i = 1; i < 100000000; i++) {
switch (i % 2) {
case 1 -> pi = pi + 4 / (2*(double)i-1);
case 0 -> pi = pi - 4 / (2*(double)i-1);
}
}
System.out.println(pi);
}
}