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#include <iostream> | |
#include <math.h> | |
using std::cout; | |
using std::cin; | |
using std::endl; | |
int main() { | |
float a, b, c; | |
cout | |
<< "Program rozwiazuje rownanie kwadratowe w postaci: " << std::endl | |
<< "ax^2 + bx + c = 0" << endl | |
<< "Podaj a: "; cin >> a; | |
cout << "Podaj b: "; cin >> b; | |
cout << "Podaj c: "; cin >> c; | |
if(!b && !c && !a) { | |
cout << "Nieskonczenie wiele rozwiazan" << endl; | |
} else if(!a) { | |
cout << "Rozwiazanie funkcji liniowej to: " << -c / b << endl; | |
} else { | |
float delta = pow(b, 2) - 4 * a * c; | |
if(delta < 0) { | |
delta = -delta; | |
cout | |
<< "Nie posiada pierwiastkow rzeczywistych ale ma zespolone" << endl | |
<< "x0: (" << -b << "-" << sqrt(delta) << "i) / (" << 2 * a << ")" << endl | |
<< "x1: (" << -b << "+" << sqrt(delta) << "i) / (" << 2 * a << ")" << endl; | |
} else if(delta > 0) { | |
cout | |
<< "Rozwiazanie: " << endl | |
<< "x0: " << (-b - sqrt(delta)) / (2 * a) << endl | |
<< "x1: " << (-b + sqrt(delta)) / (2 * a) << endl; | |
} else { | |
cout << "Rozwizanie x: " << (-b) / (2 * a) << endl; | |
} | |
} | |
return 1; | |
} |
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