Indexing and Slicing Arrays in Python

Link to Colab Notebook:

0:00 - Welcome
1:00 - Be sure you have imported SymPy and stored matrx M
2:00 - How to run all prior code cells at once
3:20 - Python uses 0 based indexing
4:42 - Extracting a single value from an array
9:15 - Practice: Solution to Question 2
11:58 - Colon operator: Extracting multiple values from an array
16:10 - Slicing rows and columns from a matrix