Description

The transpose of a matrix is a new matrix whose rows are the columns of the original.
If matrix having dimension m*n the it's transpose having dimension will be n*m.

C/C++

/* C program to transpose a matrix */
//Save it as TransposeMatrix.c

#include<stdio.h>
int main(){

    int i, j, m, n;

    printf("Enter the number of rows of array : ");
    scanf("%d",&m);

    printf("Enter the number of columns of array : ");
    scanf("%d",&n);

    //Declaring 2D array
    int arr[m][n];

    //Reading input
    for(i=0;i<m;i++) {
        for(j=0;j<n;j++) {
            printf("arr[%d][%d] : ",i,j);
            scanf("%d",&arr[i][j]);
        }
    }

    //Displaying Output
    printf("The entered array : \n");
    for(i=0;i<m;i++) {
        for(j=0;j<n;j++) {
            printf("%d ",arr[i][j]);
        }
        printf("\n");
    }

    //Transpose of matrix
    printf("The transpose of the matrix : ");
    for(j=0;j<n;j++) {
        printf("\n");
        for(i=0;i<m;i++) {
            printf("%d ",arr[i][j]);
        }
    }

    return 0;
}

Input:
Enter the number of rows of array : 2
Enter the number of columns of array : 3
arr[0][0] : 1
arr[0][1] : 2
arr[0][2] : 3
arr[1][0] : 4
arr[1][1] : 5
arr[1][2] : 6

Output:
The entered array :
1 2 3
4 5 6
The transpose of the matrix :
1 4
2 5
3 6

Java

/* Java program to transpose a matrix */
//Save it as TransposeMatrix.java


import java.io.*;
import java.util.Scanner;

public class TransposeMatrix {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        int i, j, m, n;

        System.out.println("Enter the number of rows of array : ");
        m = scanner.nextInt();

        System.out.println("Enter the number of columns of array : ");
        n = scanner.nextInt();

                //Declaring 2D array
        int arr[][] = new int[m][n];

                //Reading input
        for (i = 0; i < m; i++) {
            for (j = 0; j < n; j++) {
                System.out.println("arr[" + i + "]" + "[" + j + "] : ");
                arr[i][j] = scanner.nextInt();
            }
        }

                //Displaying Output
        System.out.println("The entered matrix : ");
        for (i = 0; i < m; i++) {
            for (j = 0; j < n; j++) {
                System.out.print(arr[i][j] + " ");
            }
            System.out.println();
        }
        
        Transpose of matrix
        System.out.println("The transpose of the matrix : ");
        for(j=0;j<n;j++) {
            for(i=0;i<m;i++) {
                System.out.print(arr[i][j]+" ");
            }
            System.out.println();
        }
    }
}

Input:
Enter the number of rows of array : 
2
Enter the number of columns of array : 
3
arr[0][0] : 
1
arr[0][1] : 
2
arr[0][2] : 
3
arr[1][0] : 
4
arr[1][1] : 
5
arr[1][2] : 
6

Output:
The entered matrix : 
1 2 3 
4 5 6 
The transpose of the matrix : 
1 4 
2 5 
3 6

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