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C# Sharp Programming Exercises

C# Sharp Exercises: Display the lower triangular of a given matrix

C# Sharp Array: Exercise-26 with Solution

Write a program in C# Sharp to print or display the lower triangular of a given matrix.

Sample Solution:-

C# Sharp Code:

using System;  
public class Exercise26
{  
    public static void Main()
     {
        int i,j,n;
        int[,] arr1 = new int[10,10];


  
       Console.Write("\n\nDisplay the lower triangular of a given matrix :\n");
       Console.Write("----------------------------------------------------\n");  


     Console.Write("Input the size of the square matrix : ");
	 n = Convert.ToInt32(Console.ReadLine());
	 Console.Write("Input elements in the first matrix :\n");
       for(i=0;i<n;i++)
        {
            for(j=0;j<n;j++)
            {
	           Console.Write("element - [{0}],[{1}] : ",i,j);
			   arr1[i,j] = Convert.ToInt32(Console.ReadLine());
            }
        }  
	 Console.Write("The matrix is :\n");
	 for(i=0;i<n;i++)
	 {
	   for(j=0;j<n ;j++)
	     Console.Write("{0}  ",arr1[i,j]);
	    Console.Write("\n");
	 }

   Console.Write("\nSetting zero in lower triangular matrix\n");
   for(i=0;i<n;i++){
      Console.Write("\n");
      for(j=0;j<n;j++)
           if(i<=j)
             Console.Write("{0}  ",arr1[i,j]);
           else
             Console.Write("{0}  ",0);
  }
       Console.Write("\n\n");
	  } 
}

Sample Output:

Display the lower triangular of a given matrix :                                                              
----------------------------------------------------                                                          
Input the size of the square matrix : 3                                                                       
Input elements in the first matrix :                                                                          
element - [0],[0] : 1                                                                                         
element - [0],[1] : 2                                                                                         
element - [0],[2] : 3                                                                                         
element - [1],[0] : 4                                                                                         
element - [1],[1] : 5                                                                                         
element - [1],[2] : 6                                                                                         
element - [2],[0] : 7                                                                                         
element - [2],[1] : 8                                                                                         
element - [2],[2] : 9                                                                                         
The matrix is :                                                                                               
1  2  3                                                                                                       
4  5  6                                                                                                       
7  8  9
Setting zero in lower triangular matrix                                                                       
                                                                                                              
1  2  3                                                                                                       
0  5  6                                                                                                       
0  0  9           

Flowchart:

Flowchart: Display the lower triangular of a given matrix

C# Sharp Code Editor:

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Next: Write a program in C# Sharp to print or display upper triangular matrix.

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