C Program to Find the Trace of a Matrix

In this tutorial, i am going to show you how to find the trace of a matrix using for loop, while loop and do while loop in c programs.

All C Programs to Find the Trace of a Matrix

• C Program to Find the Trace of a Matrix using For Loop
• C Program to Find the Trace of a Matrix using While Loop
• C Program to Find the Trace of a Matrix using Do While Loop

C Program to Find the Trace of a Matrix using For Loop

#include <stdio.h>
int main()
{
	int i, j, rows, columns, trace = 0;
	printf("Enter Matrix Rows and Columns =  ");
	scanf("%d %d", &rows, &columns);
	int Tra_arr[rows][columns];
	printf("Please Enter the Matrix Items =  \n");
	for (i = 0; i < rows; i++)
	{
		for (j = 0; j < columns; j++)
		{
			scanf("%d", &Tra_arr[i][j]);
		}
	}
	for (i = 0; i < rows; i++)
	{
		for (j = 0; j < columns; j++)
		{
			if (i == j)
			{
				trace = trace + Tra_arr[i][j];
			}
		}
	}
	printf("The Trace Of the Matrix = %d\n", trace);
}

The result of the above c program; is as follows:

Enter Matrix Rows and Columns =  2 2
Please Enter the Matrix Items =  
1 2
3 4
The Trace Of the Matrix = 5

C Program to Find the Trace of a Matrix using While Loop

#include <stdio.h>
int main()
{
		
		int i, j, rows, columns, trace = 0;	
		
		printf("Enter Matrix Rows and Columns =  ");
		scanf("%d %d", &rows, &columns);
		
		int Tra_arr[rows][columns];
		
		printf("Please Enter the Matrix Items =  \n");
		i = 0; 
		while(i < rows) 
		{
			j = 0; 
			while(j < columns) 
			{
				scanf("%d", &Tra_arr[i][j]);
				j++;
			}	
			i++;
		}
		
		i = 0; 
		while(i < rows) 
		{
			j = 0; 
			while(j < columns) 
			{
				if(i == j)
				{
					trace = trace + Tra_arr[i][j];
				}
				j++;
			}	
			i++;
		}
		
		printf("The Trace Of the Matrix = %d\n", trace);
}

The result of the above c program; is as follows:

Enter Matrix Rows and Columns =  2 2
Please Enter the Matrix Items =  
3 4
5 6
The Trace Of the Matrix = 9

C Program to Find the Trace of a Matrix using Do While Loop

#include <stdio.h>
int main()
{
	int i, j, rows, columns, trace = 0;
	printf("Enter Matrix Rows and Columns =  ");
	scanf("%d %d", &rows, &columns);
	int Tra_arr[rows][columns];
	printf("Please Enter the Matrix Items =  \n");
	i = 0;
	do
	{
		j = 0;
		do
		{
			scanf("%d", &Tra_arr[i][j]);
			if (i == j)
			{
				trace = trace + Tra_arr[i][j];
			}
		} while (++j < columns);
	} while (++i < rows);
	printf("The Trace Of the Matrix = %d\n", trace);
}

The result of the above c program; is as follows:

Enter Matrix Rows and Columns =  2 2
Please Enter the Matrix Items =  
5 6
7 8
The Trace Of the Matrix = 13

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