LabaKozak2Ind

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace KozakLaba2Ind
{
    class Program
    {
        public interface IFunc {
            double CalcFunc(int x);
            int CalcAB(IFunc func);
        }
        abstract public class FuncBase : IFunc{
            public int CalcAB(IFunc func)
            {
                return 4;
            }
            abstract public double CalcFunc(int x);// { return 0; }
        }
        public class Func1 : FuncBase
        {
            override public double CalcFunc(int x){
                return 2 * Math.Sin((x/2)+3);
            }
        }
        public class Func2 : FuncBase
        {
            override public double CalcFunc(int x){
                return 1.5*x*x - 2.5*x -4;
            }
        }
        public static void Main(string[] args)
        {
            Func1 f1 = new Func1();
            Func2 f2 = new Func2();
            
            Console.WriteLine(f1.CalcFunc(5));
            Console.WriteLine(f2.CalcFunc(10));
            Console.ReadLine();

        }
    }
}