# C Program to Find Sum of each column in a Matrix

In this tutorial, i am going to show you how to find sum of each column in a matrix in c programs.

## C Program to Find Sum of each column in a Matrix using For Loop

```/* C Program to find Sum of columns in a Matrix  */
#include<stdio.h>

int main()
{
int i, j, rows, columns, a[10][10], Sum;

printf("Please Enter Number of rows and columns  :  ");
scanf("%d %d", &i, &j);

printf("Please Enter the Matrix Row and Column Elements \n");
for(rows = 0; rows < i; rows++)
{
for(columns = 0; columns < j; columns++)
{
scanf("%d", &a[rows][columns]);
}
}

for(rows = 0; rows < i; rows++)
{
Sum = 0;
for(columns = 0; columns < j; columns++)
{
Sum = Sum + a[columns][rows];
}
printf("The Sum of Column Elements in a Matrix =  %d \n", Sum );
}

return 0;
}```

The result of the above c program; as follows:

```Please Enter Number of rows and columns  :  3 3
Please Enter the Matrix Row and Column Elements
1 2 3
4 5 6
7 8 9
The Sum of Column Elements in a Matrix =  12
The Sum of Column Elements in a Matrix =  15
The Sum of Column Elements in a Matrix =  18 ```

## C Program to Find Sum of each column in a Matrix using Function

```/* C Program to find Sum of columns in a Matrix  */
#include<stdio.h>
void AddColumns(int arr[10][10], int i, int j)
{
int rows, columns, Sum = 0;
for(columns = 0; columns < j; columns++)
{
for(rows = 0; rows < i; rows++)
{
Sum = Sum + arr[rows][columns];
}
printf("The Sum of Column Elements in a Matrix =  %d \n", Sum );
}
}
int main()
{
int i, j, rows, columns, a[10][10];

printf("Please Enter Number of rows and columns  :  ");
scanf("%d %d", &i, &j);

printf("Please Enter the Matrix Row and Column Elements \n");
for(rows = 0; rows < i; rows++)
{
for(columns = 0; columns < j; columns++)
{
scanf("%d", &a[rows][columns]);
}
}
return 0;
}```

The result of the above c program; as follows:

```Please Enter Number of rows and columns  :  3 3
Please Enter the Matrix Row and Column Elements
9 8 7
6 5 4
3 2 1
The Sum of Column Elements in a Matrix =  18
The Sum of Column Elements in a Matrix =  33
The Sum of Column Elements in a Matrix =  45 ```

Categories C