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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {

            Matrix a = new Matrix(new double [,]{{1,2,3},{4,5,6}});
            Matrix b = new Matrix(new double[,] {{9,8,7},{6,5,4}});
            Matrix c = new Matrix(new double[,] { { 9, 8, 7 }, { 6, 5, 4 }, { 6, 8, 4 } });
            Console.WriteLine("A\n{0}\n", a);
            Console.WriteLine("B\n{0}\n",b);
            Console.WriteLine("A+B\n{0}\n", a+b);
            Console.WriteLine("A-B\n{0}\n", a-b);
            Console.WriteLine("-A\n{0}\n", -a);
            Console.WriteLine("DetC\n{0}\n", c.Determinant());
           // Console.WriteLine("A-B\n{0}\n", a * b);
            Console.WriteLine("A-B\n{0}\n", c   *c);
        }
    }
}