What is broadcasting in Numpy?

It is impossible to carry out certain arithmetic operations if two arrays have different shapes. In this situation, Python provides you with a built-in numpy.array() broadcasting feature that broadcasts the smaller array across the larger array. Take a look at the example below:

Solution

As stated earlier, we will broadcast the smaller array across the larger array to perform this arithmetic operation.

Possible cases

One of the possible cases (shown above) that makes broadcasting possible is when two matrices have the same columns. However​, we have two more cases:

Code