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  1. public class PersamaanKuadrat {
  2.     public static void main(String[] args) {
  3.         double a = 1;
  4.         double b = -2;
  5.         double c = 1;
  6.  
  7.         double diskriminan = b * b - 4 * a * c;
  8.  
  9.         if (diskriminan >= 0) {
  10.             double x1 = (-b + Math.sqrt(diskriminan)) / (2 * a);
  11.             double x2 = (-b - Math.sqrt(diskriminan)) / (2 * a);
  12.  
  13.             // Format hasil maksimal 4 angka di belakang koma
  14.             System.out.printf("x1 = %.4f\n", x1);
  15.             System.out.printf("x2 = %.4f\n", x2);
  16.         } else {
  17.             System.out.println("Persamaan tidak punya akar real.");
  18.         }
  19.     }
  20. }
  21.  
Success #stdin #stdout 0.15s 56304KB
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0.3
https://ideone.com/OHSxnH
language:
Java (HotSpot 12)
created:
6 hours ago
visibility:
public

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