How do I perform element-wise multiplication in NumPy?

How do I perform element-wise multiplication in NumPy?

You can use the * operator for element-wise multiplication in NumPy arrays. For example, if you have two arrays a and b, you can do result = a * b.

Can you show me a code example?

Sure! Here's a simple example:

import numpy as np

a = np.array([1, 2, 3])
b = np.array([4, 5, 6])
result = a * b
print(result)  # Output: [ 4 10 18]

What if the arrays have different shapes?

If the arrays have different shapes, NumPy will try to broadcast them to a common shape. If they are not compatible, it will raise an error.

Can you explain broadcasting in NumPy?

Broadcasting is a technique that allows NumPy to perform operations on arrays of different shapes. It expands the smaller array across the larger one so they have compatible shapes.