# C# program to find the sum of each column of the matrix

Here, we are going to learn how to find the sum of each column of the matrix in C#?
Submitted by Nidhi, on November 02, 2020

Here, we will read a matrix from the user and then find the sum of each column of the matrix and then print the matrix and sum of each column on the console screen.

Program:

The source code to find the sum of each column of the matrix is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

```//C# program to find the sum of each column of the matrix.

using System;

class MatrixDemo
{
public static void Main(string[] args)
{
int i   = 0;
int j   = 0;

int sum = 0;
int row = 2;
int col = 2;

int[,] Matrix = new int[row, col];

Console.Write("Enter the elements of matrix: ");
for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
{
}
}

Console.WriteLine("\nMatrix: ");
for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
{
Console.Write(Matrix[i, j] + "\t");
}
Console.WriteLine();
}

for (i = 0; i < row; i++)
{
sum = 0;
for (j = 0; j < col; j++)
{
sum += Matrix[j, i];
}
Console.WriteLine("Sum of column[{0}]: {1}", (i + 1), sum);
}
}
}
```

Output:

```Enter the elements of matrix: 1
2
3
4

Matrix:
1       2
3       4
Sum of column[1]: 4
Sum of column[2]: 6
Press any key to continue . . .
```

Explanation:

In the above program, we created a class MatrixDemo that contains a Main() method. The Main() method is the entry point for the program, Here we created a 2-D array to represent a matrix.

```Console.Write("Enter the elements of matrix: ");
for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
{
}
}
Console.WriteLine("\nMatrix: ");
for (i = 0; i < row; i++)
{
for (j = 0; j < col; j++)
{
Console.Write(Matrix[i, j] + "\t");
}
Console.WriteLine();
}
```

In the above code, we read the elements of matrix and print the matrix on the console screen.

```for (i = 0; i < row; i++)
{
sum = 0;
for (j = 0; j < col; j++)
{
sum += Matrix[j, i];
}
Console.WriteLine("Sum of column[{0}]: {1}", (i + 1), sum);
}
```

Here we calculated the sum of each column of the matrix and then print the sum of each column on the matrix on the console screen.

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