Program to add two matrix in Python

In this python programming article, we are going to learn to:

• write a program to add two matrix in python

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Program to find sum of two matrices in Python

The program to add two matrix in python is as follows:

 

# Owner : TutorialsInhand Author : Devjeet Roy

mat1 = [[1,2,3],
        [4,5,6],
        [7,8,9]]

mat2 = [[11,12,13],
        [14,15,16],
        [17,18,19]]


mat3 = list()
temp = list()

for i in range(3):
    temp=[]
    for j in range(3):
        temp.append(mat1[i][j]+mat2[i][j])
    mat3.append(temp)

for i in mat3:
    print(i)

The output of the program to add two matrix in python is as follows:

 

PS C:\Users\DEVJEET\Desktop\tutorialsInHand> python code.py                         En
[12, 14, 16]
[18, 20, 22]
[24, 26, 28]

Few important tips about the program

1. A matrix is nothing but a 2D array or a nested list in Python.

2. We iterate upon every row and then every element within that row using indexing to find its sum and store in in a temporary list. Finally, we insert the list into the resultant matrix and again empty the list for the next iteration.

3. Finally, we print the matrix, rowwise.

 

write a program to add two matrix in python: