This is an introductory video on numpy arrays in Python, especially indexing and slicing, and accompanies the following notebook with additional explanations, examples, and exercises:
https://nbviewer.jupyter.org/github/mbakker7/exploratory_computing_with_python/blob/master/notebook2_arrays/py_exploratory_comp_2_sol.ipynb
The next videos in the series is https://youtu.be/19gM-QEVugc