Python practice problem

 

Given a matrix M write a function Transpose which accepts a matrix M and return the transpose of M.

Transpose of a matrix is a matrix in which each row is changed to a column or vice versa.

Input 
A matrix M
[[1,2,3],[4,5,6],[7,8,9]]

Output
Transpose of M
[[1,4,7],[2,5,8],[3,6,9]]

SOLUTION:

#Transverse of a matrix

#Creating a function trans that will return the transpose of the matrix when the given matrix is passed as an argument

def trans(M,n):

    

    '''

    M=Matrix

    n=order of the matrix

    '''

    

    Trans_mat=[] #Creating a new matrix in which we will be storing the transpose of the matrix value

    #Creating the trans_mat a null matrix so that we can replace the values and put the transposed values in there

    

    for i in range(n):

        l=[]

        for j in range(n):

            l.append("0")

        Trans_mat.append(l)

        

    

    for i in range(n):

        for j in range(n):

            Trans_mat[i][j] = M[j][i]

            

    return Trans_mat

a=[]

n=int(input("Enter the order of the matrix"))

for i in range(n):

    l=[]

    for j in range(n):

        val=int(input())

        l.append(val)

    a.append(l)

    

ans=trans(a, n) 

for i in range(n):

    for j in range(n):

        print(ans[i][j],end=" ")

    print()