Help with understanding what his algorithm does and how it comes up with the numbers
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Thread: Help with understanding what his algorithm does and how it comes up with the numbers

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  1. #1
    Join Date
    Oct 2012
    Posts
    1

    Help with understanding what his algorithm does and how it comes up with the numbers

    Just starting to lean about algorithm and programming and professor gave us this question and told us to figure out what i does thanks for the help
    Code:
    #include <cstdlib>
    #include <iostream>
    #include <cmath>
    using namespace std;
    int main( )
    {
      double a, x_old, x_new;
      cout << "Enter a positive DECIMAL number => ";
      cin >> a;
      x_old = 1;
      x_new = 0.5*( 1 + a );
      while( fabs(x_old - x_new) >= 0.00005)
      {
        x_old = x_new;
        x_new = 0.5*( x_old * x_old + a )/x_old;
      }
      cout << "\nThe value that you are seeking is " << x_new << endl;
      cout << "Press the enter key to continue ...";
      cin.get();
      return 0;
    }
    Last edited by cilu; October 2nd, 2012 at 05:36 AM. Reason: code tags

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