To find the given matrix is a unit matrix
(or) not - 2
Program:
#include<stdio.h>
#include<conio.h>
void main()
{
int mat[10][10];
int i, j, size, flag = 1;
clrscr();
printf("Enter size of the square matrix : ");
scanf("%d", &size);
printf("\nEnter the elements of the matrix : \n\n");
for(i = 0; i < size; i++)
for(j = 0; j < size; j++)
scanf("%d", &mat[i][j]);
for(i = 0; i < size; i++)
{
for(j = 0; j < size; j++)
{
if(i == j)
if(mat[i][j] != 1)
flag = 0 ;
if(i != j)
if(mat[i][j] != 0)
flag = 0;
}
}
if(flag == 1)
printf("\nThe matrix is an unit matrix");
else
printf("\nThe matrix is not an unit matrix");
getch();
}
Output:
Case: 1
Enter size of the square matrix : 3
Enter the elements of the matrix :
1 0 0
0 1 0
0 0 1
The matrix is an unit matrix
Case: 2
Enter size of the square matrix : 3
Enter the elements of the matrix :
1 2 3
4 1 5
6 7 1
The matrix is not an unit matrix
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UpdatedDec 31, 2019
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Views8,737
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