public double F2(double x, double y) => 3 * KI3_Class_1.F1(x, y) + 8;
public static double F2(double x, double y) { KI3_Class_1 vyraz = new KI3_Class_1(); return(3 * vyraz.F1(x, y) + 2); }
public double F2(double x, double y) { return(2 * KI3_Class_1.F1(x, y) - 5); }