public static void Main()
Console.Write("Eingabe a: ");
a=double.Parse(Console.ReadLine());
Console.Write("Eingabe t: ");
t=double.Parse(Console.ReadLine());
public static double f (double x)
e = Math.Pow(x,3) - 10 * Math.Pow(x,2) - 3 * x + 30;
public static double f_ab (double x)
e = 3 * Math.Pow(x,2) - 20 * x - 3;