quadratic-equation-solver

#include "std_lib_facilities.h"

int main() { double a = 0; double b = 0; double c = 0; double D = 0; double y = 2;

double x1 = 0;
double x2 = 0;
{


	cout << "write a number for a ";
	cin >> a;
	cout << "write a number for b ";
	cin >> b;
	cout << "write a number for c ";
	cin >> c;
	

	D = pow(b, 2) - (4 * a * c);

	cout << "D equals " << D << "\n";

	if (D <= -1)
	  
	{
		cout << "no solution\n";
	}
		
	else if (D == 0)

	{
		x1 = (-b + sqrt(D)) / (2 * a);

		cout << "1 solution\n" << "x equals " << x1 << "\n";
	}

	else

	{
		x1 = (-b + sqrt(D)) / (2 * a);
		x2 = (-b - sqrt(D)) / (2 * a);
		cout << "2 solutions\n" << "x1 equals " << x1 << "\n" << "x2 equals " << x2 << "\n";
	}
	
	keep_window_open();

}

}

quadratic equation