public static KeyValuePair <double, double> Roots(Quadratic_Equation quadratic_Equation)
{
if (quadratic_Equation.Discriminant() < 0)
{
throw new ArgumentException("уравнение не имеет корней");
}
double x1 = (-quadratic_Equation.B + Math.Pow(quadratic_Equation.Discriminant(), 0.5)) / (2 * quadratic_Equation.a);
double x2 = (-quadratic_Equation.B - Math.Pow(quadratic_Equation.Discriminant(), 0.5)) / (2 * quadratic_Equation.a);
return(new KeyValuePair <double, double>(x1, x2));
}
static void Main(string[] args)
{
Random ran = new Random();
try
{
Quadratic_Equation quadratic_Equation = new Quadratic_Equation(ran.NextDouble() + ran.Next(), ran.NextDouble() + ran.Next(), ran.NextDouble() + ran.Next());
XmlSerializer ser = new XmlSerializer(typeof(Quadratic_Equation));
FileStream fs = new FileStream("equation.ser", FileMode.Create);
ser.Serialize(fs, quadratic_Equation);
fs.Close();
fs = File.OpenRead("equation.ser");
Quadratic_Equation quadratic = (Quadratic_Equation)ser.Deserialize(fs);
Console.WriteLine("{0} * x * x + {1} * x + {2} = 0", quadratic.A, quadratic.B, quadratic.C);
KeyValuePair <double, double> pair = Quadratic_Equation.Roots(quadratic);
Console.WriteLine("x1 = {0} \nx2 = {1}", pair.Key, pair.Value);
Console.ReadKey();
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
Console.ReadKey();
}
}