void bisekcja(double a, double b, double epsilon) {
cout <<endl<<endl;
cout << "Metoda bisekcji"<<endl;
cout << "a = " <<a<<endl;
cout << "b = " <<b<<endl;
double s;
int i=0;
do {
//cout <<fabs(funkcja(s))<<endl;
i++;
s = (a+b) / 2;
if(abs(funkcja(s)) < epsilon)
break;
if( funkcja(a) * funkcja(s) < 0 ) {
b = s;
} else {
a = s;
}
//cout << fabs( f(s) )<<endl;
//cout <<fabs(funkcja(s))<<endl;
} while( (b-a ) >= epsilon);
cout << "X = " << s<<endl;
cout << "Dokladnosc = " << epsilon<<endl;
cout << "kroki = " << i<<endl;
}
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