Lab2-Pi

JLab>javac Pi.java
JLab>
JLab>java Selftest 

JLab> testPi : ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok  (10.0/10.0)
JLab> : -----------------------------
JLab> : ?????? 10.0 ????? (???? 10.0)
JLab> : -----------------------------
JLab> :<POINT>10.0</POINT> (<TOTAL>10.0</TOTAL> )
JLab>

import java.util.Scanner;

public class Pi {
  // pi1 = 4*(1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + ...)
  // pi2 = 4*(2/3 * 4/3 * 4/5 * 6/5 * 6/7 * 8/7 * ...)
  public static void main(String[] args) {
    Scanner kb = new Scanner(System.in);
    System.out.print("k = ");
    int k = kb.nextInt();

    double pi1 = 0, pi2 = 0;
   double n = 1;
   double sum = 0;
   double f = 0;
   double i = 0;
      while (k > f) {
     i = (1 / n) * Math.pow(-1, f);
     f++;
     n = n + 2;
     sum = sum + i;
          }
   pi1 = sum * 4;
   
   
   
   double q = 2;
   double m = 3;
   double l = 0;
   double h;
   double g = 1;
   

   
   while (k > l) {
     h = (q * (q + 2)) / Math.pow(m,2);
     g = g * h;
     m = m + 2;
     q = q + 2;
     l=l+2;
          }
pi2=g*4;

    System.out.println("Pi = " + pi1);  // แสดงผลของสูตรแรก
    System.out.println("Pi = " + pi2);  // แสดงผลของสูตรที่สอง
  }

}

SM=0, CM=17, ST=25, KY=600, TR=60:00
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;