How can i impliment matrix multiplication using the numpy library in python?

Question

I created a numpy array on my program and I want to perform matrix multiplication/dot product on the array. Can someone help me ASAP?

Answer 1

You can use the @ operator or the matmul function. (Python 3.5 or higher)

import numpy as np

a = np.array([[1, 2],
[3, 4]])

b = np.array([[5, 6],
[7, 8]])

print(a @ b) # OR print(np.matmul(a, b))

Output:
[[19, 22],
[43, 50]]

For older versions of Python, you could do a.dot(b), but @ is the recommended way.

Answer 2

Use special methods

Answer 3

Use special methods