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Bisection Method Problem

yloplopy Apr 22nd, 2019 103 Never
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  1. public static void main(String[] args) {
  2.         bisectionMethod();
  3.     }
  4.    
  5.     private static void bisectionMethod() {
  6.         double a = 0;
  7.         double b = 1;
  8.         double tol = 0.000001;
  9.        
  10.         double fa = funct(a);
  11.         int counter = 1;
  12.         while(Math.abs(b-a) >= (tol)) {
  13.             System.out.println(counter + ": Interval = [" + a + ", " + b + "] x = " + ((a+b)/2));
  14.             double m = (a+b)/2;
  15.             double fm = funct(m);
  16.             if((fa*fm)<=0) {
  17.                 b=m;
  18.             }else {
  19.                 a=m;
  20.             }
  21.             counter++;
  22.         }
  23.         System.out.println(counter + ": Interval = [" + a + ", " + b + "] x = " + ((a+b)/2));
  24.     }
  25.     private static double funct(double x) {
  26.         return ((3*Math.pow(x, 3))-(5*Math.pow(x, 2))-(4*x)+4);
  27.     }
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