In the previous article, we have discussed Python Program to find the Sum of Series 1^1+2^2+3^3…+N^N

Given a matrix, the task is to scan and print the elements of the given matrix in Python

**What is a matrix:**

A matrix is a rectangular sequence of numbers divided into columns and rows. A matrix element or entry is a number that appears in a matrix.

**Example:**

Above is the matrix which contains 5 rows and 4 columns and having elements from 1 to 20.

In this order, the dimensions of a matrix indicate the number of rows and columns.

Here as there are 5 rows and 4 columns it is called a 5*4 matrix.

## Program to Read and Display a Matrix in Python

Below are the ways to read and display the elements of the given matrix in Python:

### Method #1: Using list Method

**Approach:**

- Give the number of rows of the matrix as user input using the int(input()) function and store it in a variable.
- Give the number of columns of the matrix as user input using the int(input()) function and store it in another variable.
- Take a list and initialize it with an empty value using [] or list() to say
**gvnmatrix**. - Loop till the given number of rows using the For loop
- Inside the For loop, Give all the row elements of the given Matrix as a list using the list(),map(),int(),split() functions and store it in a variable.
- Add the above row elements list to
**gvnmatrix**using the append() function. - To print all the elements of the given matrix.
- Loop till the given number of rows using the For loop.
- Inside the For loop, Iterate till the given number of rows using another Nested For loop(Inner For loop).
- Print the element of the matrix by printing
**gvnmatrix[n][m]**value where n is the iterator value of the parent For loop and m is the iterator value of the inner For loop. - The Exit of the Program.

**Below is the Implementation:**

# Give the number of rows of the matrix as user input using the int(input()) function # and store it in a variable. mtrxrows = int(input('Enter some random number of rows of the matrix = ')) # Give the number of columns of the matrix as user input using the int(input()) function # and store it in another variable. mtrxcols = int(input('Enter some random number of columns of the matrix = ')) # Take a list and initialize it with an empty value using [] or list() to say gvnmatrix. mtrx = [] # Loop till the given number of rows using the For loop for n in range(mtrxrows): # Inside the For loop, Give all the row elements of the given Matrix as a list using # the list(),map(),int(),split() functions and store it in a variable. l = list(map(int, input( 'Enter {'+str(mtrxcols)+'} elements of row {'+str(n+1)+'} separated by spaces = ').split())) # Add the above row elements list to gvnmatrix using the append() function. mtrx.append(l) # To print all the elements of the given matrix. # Loop till the given number of rows using the For loop. for n in range(mtrxrows): # Inside the For loop, Iterate till the given number of rows using another # Nested For loop(Inner For loop). for m in range(mtrxcols): # Print the element of the matrix by printing gvnmatrix[n][m] value # where n is the iterator value of the parent For loop and m is the iterator # value of the inner For loop. print(mtrx[n][m], end=' ') print()

**Output:**

Enter some random number of rows of the matrix = 3 Enter some random number of columns of the matrix = 4 Enter {4} elements of row {1} separated by spaces = 5 8 3 7 Enter {4} elements of row {2} separated by spaces = 5 9 7 2 Enter {4} elements of row {3} separated by spaces = 1 6 8 5 5 8 3 7 5 9 7 2 1 6 8 5

### Method #2: Using List Comprehension

**Approach:**

- Give the number of rows of the matrix as user input using the int(input()) function and store it in a variable.
- Give the number of columns of the matrix as user input using the int(input()) function and store it in another variable.
- Take a list and initialize it with an empty value using [] or list() to say
**gvnmatrix**. - Loop till the given number of rows using the For loop
- Inside the For loop, Give all the row elements of the given Matrix as a list using the list Comprehension.
- Add the above row elements list to
**gvnmatrix**using the append() function. - To print all the elements of the given matrix.
- Loop till the given number of rows using the For loop.
- Inside the For loop, Iterate till the given number of rows using another Nested For loop(Inner For loop).
- Print the element of the matrix by printing
**gvnmatrix[n][m]**value where n is the iterator value of the parent For loop and m is the iterator value of the inner For loop. - The Exit of the Program.

**Below is the Implementation:**

# Give the number of rows of the matrix as user input using the int(input()) function # and store it in a variable. mtrxrows = int(input('Enter some random number of rows of the matrix = ')) # Give the number of columns of the matrix as user input using the int(input()) function # and store it in another variable. mtrxcols = int(input('Enter some random number of columns of the matrix = ')) # Take a list and initialize it with an empty value using [] or list() to say gvnmatrix. mtrx = [] # Loop till the given number of rows using the For loop for n in range(mtrxrows): # Inside the For loop, Give all the row elements of the given Matrix as a list using the list Comprehension l=[int(eleme) for eleme in input('Enter {'+str(mtrxcols)+'} elements of row {'+str(n+1)+'} separated by spaces = ').split()] # Add the above row elements list to gvnmatrix using the append() function. mtrx.append(l) # To print all the elements of the given matrix. # Loop till the given number of rows using the For loop. for n in range(mtrxrows): # Inside the For loop, Iterate till the given number of rows using another # Nested For loop(Inner For loop). for m in range(mtrxcols): # Print the element of the matrix by printing gvnmatrix[n][m] value # where n is the iterator value of the parent For loop and m is the iterator # value of the inner For loop. print(mtrx[n][m],end= ' ') print()

**Output:**

Enter some random number of rows of the matrix = 4 Enter some random number of columns of the matrix = 5 Enter {5} elements of row {1} separated by spaces = 1 2 3 4 5 Enter {5} elements of row {2} separated by spaces = 7 8 5 9 4 Enter {5} elements of row {3} separated by spaces = 1 11 25 7 6 Enter {5} elements of row {4} separated by spaces = 2 5 3 4 6 1 2 3 4 5 7 8 5 9 4 1 11 25 7 6 2 5 3 4 6

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