C program to check symmetric matrix; Through this tutorial, we will learn how to check symmetric matrix in c programs.
Algorithm to check symmetric matrix
Use the following algorithm to write a program to check symmetric matrix; as follows:
- Start Program
- Input elements in matrix A.
- Find transpose of matrix A, store it in some variable say B.
- Check if matrix A is equal to its transpose AT then it is symmetric matrix otherwise not. Means check if Aij = ATij (Where 1 ≤ i ≤ m and 1 ≤ j ≤ n) then the matrix is symmetric.
- Stop Program.
C Program to Check Symmetric Matrix
/* C Program to check Matrix is a Symmetric Matrix or Not */ #include<stdio.h> int main() { int i, j, rows, columns, a[10][10], b[10][10], Count = 1; printf("\n Please Enter Number of rows and columns : "); scanf("%d %d", &i, &j); printf("\n Please Enter the Matrix Elements \n"); for(rows = 0; rows < i; rows++) { for(columns = 0;columns < j;columns++) { scanf("%d", &a[rows][columns]); } } //Transpose of matrix for(rows = 0; rows < i; rows++) { for(columns = 0;columns < j; columns++) { b[columns][rows] = a[rows][columns]; } } for(rows = 0; rows < i; rows++) { for(columns = 0; columns < j; columns++) { if(a[rows][columns] != b[rows][columns]) { Count++; break; } } } if(Count == 1) { printf("\n The Matrix that you entered is a Symmetric Matrix "); } else { printf("\n The Matrix that you entered is Not a Symmetric Matrix "); } return 0; }
The output of the above c program; as follows:
Please Enter Number of rows and columns : 3 3 Please Enter the Matrix Elements 1 2 3 2 4 5 3 5 8 The Matrix that you entered is a Symmetric Matrix