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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     // dane na sztywno
  6.     double c = 4.0;        // liczba, z której liczymy pierwiastek (c > 1)
  7.     double eps = 0.00001;  // dokładność
  8.  
  9.     double a = 0.0;
  10.     double b = c;
  11.     double m;
  12.  
  13.     // metoda bisekcji
  14.     while (b - a > eps) {
  15.         m = (a + b) / 2.0;
  16.  
  17.         if (m * m > c)
  18.             b = m;
  19.         else
  20.             a = m;
  21.     }
  22.  
  23.     double pkw = (a + b) / 2.0;
  24.  
  25.     cout << "Pierwiastek z " << c << " = " << pkw << endl;
  26.  
  27.     return 0;
  28. }
  29.  
Success #stdin #stdout 0s 5316KB
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Standard input is empty
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Pierwiastek z 4 = 2
https://ideone.com/8NjBXP
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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