Let’s say A and B are two mxn matrices. We can add these two matrices and get another matrix C. If the element of ith row and jth column of the matrix A, B, and C are A_i,j, B_i,j, and C_i,j, respectively, then we can say:

Let’s look at an example. Let’s say A and B are two 2×3 matrices with the following elements:

In that case, if C = A + B, then

How to add two matrices using Python NumPy?

We can use the following Python code to add two matrices using NumPy:

import numpy

A = numpy.array([[1, 2, 3], [4, 5, 6]])
B = numpy.array([[7, 8, 9], [10, 11, 12]])

C = A + B

print("A: \n", A)
print("B: \n", B)
print("C = A + B: \n", C)

Here, we are creating two matrices A and B using the numpy.array() function. We are then adding the two matrices using “C = A + B” statement.

The output of the mentioned program will be:

A: 
 [[1 2 3]
 [4 5 6]]
B: 
 [[ 7  8  9]
 [10 11 12]]
C = A + B: 
 [[ 8 10 12]
 [14 16 18]]