pi

serie1/Pi.java

+public class Pi {
+
+    public static double pi(int n) {
+        double res = 0.0;
+
+        for (int i = 1; i <= n; i++) {
+            res += 1 / Math.pow(i, 4);
+        }
+
+        res *= 90;
+        res = Math.pow(res, 1.0 / 4.0);
+
+        return res;
+    }
+
+    public static void main(String args[]) {
+        System.out.println(pi(100));
+    }
+}