The user must enter the order of the two matrices and the elements of the two matrices. Then, compare the two matrices.
If the matrix elements and sizes are equal, it means that the two matrices are equal.
If the matrix sizes are equal but the elements are equal but not equal, the display matrices are comparable but not equal.
Display matrices cannot be compared if sizes and elements do not match.
The following is a C program for Comparing whether two matrices are equal -
#include <stdio.h> #include <conio.h> main(){ int A[10][10], B[10][10]; int i, j, R1, C1, R2, C2, flag =1; printf("Enter the order of the matrix A</p><p>"); scanf("%d %d", &R1, &C1); printf("Enter the order of the matrix B</p><p>"); scanf("%d %d", &R2,&C2); printf("Enter the elements of matrix A</p><p>"); for(i=0; i<R1; i++){ for(j=0; j<C1; j++){ scanf("%d",&A[i][j]); } } printf("Enter the elements of matrix B</p><p>"); for(i=0; i<R2; i++){ for(j=0; j<C2; j++){ scanf("%d",&B[i][j]); } } printf("MATRIX A is</p><p>"); for(i=0; i<R1; i++){ for(j=0; j<C1; j++){ printf("%3d",A[i][j]); } printf("</p><p>"); } printf("MATRIX B is</p><p>"); for(i=0; i<R2; i++){ for(j=0; j<C2; j++){ printf("%3d",B[i][j]); } printf("</p><p>"); } /* Comparing two matrices for equality */ if(R1 == R2 && C1 == C2){ printf("Matrices can be compared</p><p>"); for(i=0; i<R1; i++){ for(j=0; j<C2; j++){ if(A[i][j] != B[i][j]){ flag = 0; break; } } } } else{ printf(" Cannot be compared</p><p>"); exit(1); } if(flag == 1 ) printf("Two matrices are equal</p><p>"); else printf("But,two matrices are not equal</p><p>"); }
When executing the above program, the following results will be produced -
Run 1: Enter the order of the matrix A 2 2 Enter the order of the matrix B 2 2 Enter the elements of matrix A 1 2 3 4 Enter the elements of matrix B 1 2 3 4 MATRIX A is 1 2 3 4 MATRIX B is 1 2 3 4 Matrices can be compared Two matrices are equal Run 2: Enter the order of the matrix A 2 2 Enter the order of the matrix B 2 2 Enter the elements of matrix A 1 2 3 4 Enter the elements of matrix B 5 6 7 8 MATRIX A is 1 2 3 4 MATRIX B is 5 6 7 8 Matrices can be compared But,two matrices are not equal
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