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Link: http://codepad.org/0cGxc6Dx    [ raw code | output | fork ]

C++, pasted on Oct 9:
#include <iostream>
#include <cmath>

double easy_iter(double A,double B,double E)
{
 
    double Q=A+A*A+3*sin(A);
    double QQ=B;
    int n=1;
    while (fabs(Q-QQ)>E)
    {
        QQ=Q;
        Q=QQ+QQ*QQ+3*sin(QQ);//сюда тоже своя функция
        n++;
        
    }
    cout<<"Корень: "<<Q<<endl;
    cout<<"Количество итераций: "<<n<<endl;
    return 0;
}

int main (void)
{
  easy_iter (-2, -1, 0.0001);
  return 0;
}


Output:
1
2
Корень: nan
Количество итераций: 16


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