public static Matran operator -(Matran a, Matran b)
{
Matran kq = new Matran(a.soDong, a.soCot);
for (int i = 0; i < kq.soDong; i++)
{
for (int j = 0; j < kq.SoCot; j++)
{
kq.a[i, j] = a.a[i, j] - b.a[i, j];
}
}
return(kq);
}
public static Matran operator *(Matran a, Matran b)
{
Matran kq = new Matran(a.soDong, b.soCot);
for (int i = 0; i < kq.soDong; i++)
{
for (int j = 0; j < kq.SoCot; j++)
{
int sum = 0;
for (int r = 0; r < a.soCot; r++)
{
sum = sum + (a.a[i, r] * b.a[r, j]);
}
kq.a[i, j] = sum;
}
}
return(kq);
}
static void Main(string[] args)
{
Console.WriteLine("Nhap ma tran A: ");
Matran matran1 = new Matran();
matran1.Nhap();
matran1.Xuat();
Console.WriteLine("Nhap ma tran B: ");
Matran matran2 = new Matran();
matran2.Nhap();
matran2.Xuat();
Matran matran3 = new Matran();
int x;
Console.WriteLine("\nNhap 1 tinh A + B\nNhap 2 tinh A - B\nNhap 3 tinh A * B");
x = int.Parse(Console.ReadLine());
if (x == 1)
{
matran3 = matran1 + matran2;
}
else
{
if (x == 2)
{
matran3 = matran1 - matran2;
}
else
{
matran3 = matran1 * matran2;
}
}
matran3.Xuat();
}
