Python Program to check if two given matrices are identical

Here two matrices are given. Both matrices have the same order. For identically two matrix should be equal, number of rows and columns in both the matrix should be equal and the corresponding elements should also be equal.

Algorithm

Step 1: Create two matrix.
Step 2: Then traverse every element of the first matrix and second matrix and compare every element of the first matrix with the second matrix.
Step 3: If the both are same then both matrices are identical.

Example Code

# Program to check if two
# given matrices are identical
N=4
# This function returns 1
# if A[][] and B[][] are identical
# otherwise returns 0
def areSame(A,B):

   for i in range(n):
      for j in range(n):
         if (A[i][j] != B[i][j]):
            return 0
   return 1
 
# driver code
A=[]
n=int(input("Enter n for n x n matrix : "))    #3 here
#use list for storing 2D array
#get the user input and store it in list (here IN : 1 to 9)
print("Enter the element ::>")
for i in range(n): 
   row = []                                      #temporary list to store the row
   for j in range(n): 
      row.append(int(input()))                   #add the input to row list
   A.append(row)                                 #add the row to the list

print(A)
# [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

#Display the 2D array
print("Display Array In Matrix Form")
for i in range(n):
   for j in range(n):
      print(A[i][j], end=" ")
   print()

B=[]
n=int(input("Enter N for N x N matrix : "))    #3 here
#use list for storing 2D array
#get the user input and store it in list (here IN : 1 to 9)
print("Enter the element ::>")
for i in range(n): 
   row = []                                      #temporary list to store the row
   for j in range(n): 
      row.append(int(input()))                   #add the input to row list
   B.append(row)                                 #add the row to the list

print(B)
# [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

#Display the 2D array
print("Display Array In Matrix Form")
for i in range(n):
   for j in range(n):
      print(B[i][j], end=" ")
   print()

if (areSame(A, B)==1):
   print("Matrices are identical")
else:
   print("Matrices are not identical")
 
# This code is contributed
# by Anant Agarwal.

Output

Enter n for n x n matrix : 2
Enter the element ::>
1
1
2
2
[[1, 1], [2, 2]]
Display Array In Matrix Form
1 1 
2 2 
Enter N for N x N matrix : 2
Enter the element ::>
1
1
2
2
[[1, 1], [2, 2]]
Display Array In Matrix Form
1 1 
2 2 
Matrices are identical