What does the term “broadcasting” mean in Pandas documentation?

Question

I'm reading through the Pandas documentation, and the term "broadcasting" is used extensively, but never really defined or explained.

What does it mean?

Answer 1

The broadcasting comes from numpy, simply put it describes the rules of the output that will result when you do operations within the n-dimensional arrays (could be panels, dataframes, series) or scalar values.

For more information, check out the following link:

https://docs.scipy.org/doc/numpy/user/basics.broadcasting.html