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How do I perform matrix multiplication using NumPy?

An example of an AI chatbot conversation about matrix multiplication with NumPy.

😀
You

How do I perform matrix multiplication using NumPy?

MagicBuddy
MagicBuddy

You can use the numpy.dot() function or the @ operator for matrix multiplication. Do you have specific matrices in mind?

😀
You

Yes, I have two matrices: A = [[1, 2], [3, 4]] and B = [[5, 6], [7, 8]]. How do I multiply them?

MagicBuddy
MagicBuddy

You can multiply them like this:

import numpy as np
A = np.array([[1, 2], [3, 4]])
B = np.array([[5, 6], [7, 8]])
result = np.dot(A, B)
print(result)

This will give you the resulting matrix.

😀
You

What will the output be for that multiplication?

MagicBuddy
MagicBuddy

The output will be:

[[19 22]
 [43 50]]

This is the result of multiplying matrices A and B.

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