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Wednesday 24 July 2013

C program to find transpose of a matrix

Write a C program to find transpose of a matrix.


  #include <stdio.h>
  #define MAXROW 10
  #define MAXCOL 10

  int main() {
        int m1[MAXROW][MAXCOL], t1[MAXROW][MAXCOL];
        int i, j, row, col;

        /* get the number of rows for the input matrix */
        printf("Enter the number of rows:");
        scanf("%d", &row);

        /* get the number of columns for the input matrix */
        printf("Enter the number of columns:");
        scanf("%d", &col);

        /* get the entries for the input matrix */
        printf("Enter the entries for your input matrix:\n");
        for (i = 0; i < row; i++) {
                for (j = 0; j < col; j++) {
                        scanf("%d", &m1[i][j]);
                }
        }

        /* finding transpose for the given matrix */
        for (i = 0; i < col; i++) {
                for (j = 0; j < row; j++) {
                        t1[i][j] = m1[j][i];
                }
        }

        /* prints the transpose of the given matrix */
        printf("Transpose of the given matrix:\n");
        for (i = 0; i < col; i++) {
                for (j = 0; j < row; j++) {
                        printf("%d ", t1[i][j]);
                }
                printf("\n");
        }

        return 0;
  }



  Output:
  jp@jp-VirtualBox:~/$ ./a.out
  Enter the number of rows:3
  Enter the number of columns:2
  Enter the entries for your input matrix:
  10 20
  30 40
  50 60
  Transpose of the given matrix:
  10 30 50 
  20 40 60 


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