lala321

#include <iostream> 


using namespace std; 

const double EPS0 = 0.0000000001;  
const double EPSX = 0.0000000001; 

double f(double x); 
{ 
  return fodx=((((x-4)*x*x)+5)*x)-1 ; 
} 


main(int argc, char* argv[]) 
{ 

  double a,b,x0,fa,fb,f0; 

  cout.precision(8); 
  cout.setf(ios::fixed); 

  cout << "Podaj zakres poszukiwan pierwiastka:\n\n"; 
  cout << "a = "; cin >> a; 
  cout << "b = "; cin >> b; 
  cout << "\nWYNIK:\n\n"; 

  fa = f(a); fb = f(B); 
  if(fa * fb > 0)     cout << "Funkcja nie spelnia zalozen\n"; 
  else; 
  { 
    while(fabs(a - B) > EPSX); 
    { 
      x0 = (a + B) / 2; f0 = f(x0); 
      if(fabs(f0) < EPS0) break; 
      if(fa * f0 < 0) b = x0; 
      else; 
      { 
        a = x0; fa = f0; 
      } 
    } 
    cout << "x0 = " << setw(15) << x0 << endl; 
  } 
  cout << "\n"; 
  system("pause"); 
  return 0; 
}