This Code Shows How to Perform Matrix Addition

C#
``` using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication8
{
class Program
{
public static void Main(string[] args)
{
int m, n,i,j;
Console.Write("Enter Number Of Rows And Columns Of Matrices A and B : ");
int[,] A = new int[10, 10];
Console.Write("\nEnter The First Matrix : ");
for (i = 0; i < m; i  )
{
for (j = 0; j < n; j  )
{
}
}

int[,] B = new int[10, 10];
Console.Write("\nEnter The Second Matrix:");
for (i = 0; i < m; i  )
{
for (j = 0; j < n; j  )
{
}
}
Console.Clear();
Console.WriteLine("\nMatrix A : ");
for (i = 0; i < m; i  )
{
for (j = 0; j < n; j  )
{
Console.Write(A[i, j]   "\t");

}
Console.WriteLine();
}
Console.WriteLine("\nMatrix B: ");
for (i = 0; i < m; i  )
{
for (j = 0; j < n; j  )
{
Console.Write(B[i, j]   "\t");

}
Console.WriteLine();
}
int[,] C = new int[10, 10];
for (i = 0; i < m; i  )
{
for (j = 0; j < n; j  )
{
C[i, j] = A[i, j]   B[i, j];
}
}
Console.Write("\nSum Matrix :");
for (i = 0; i < m; i  )
{
for (j = 0; j < n; j  )
{
Console.Write(C[i, j]   "\t");

}
Console.WriteLine();
}
}
}
} /* Here is the output of the C# Program:

Enter Number Of Rows And Columns Of Matrices A and B : 3  3
Enter the First Matrix :
1 2 3
2 3 4
3 4 5
Enter the Second Matrix :
1 2 3
2 1 4
1 1 5
Matrix A :
1 2 3
2 3 4
3 4 5
Matrix B :
1 2 3
2 1 4
1 1 5
Sum Matrix :
2 4 6
4 4 8
4 5 10 */```