SageMath – Matrices and Matrix Operations with Sage Tutorial

Learn to make and use matrices with SageMath. Overview of different ways to make matrices (and vectors), storing matrices in variables, doing operations with matrices, SageMath's built-in special matrices, and accessing an element of a matrix with an index expression. Time stamps below: Intro/Vocabulary - 0:58 Making a matrix - 2:45 Making a vector - 7:10 Specifying a "ring" for your matrix - 8:43 Storing a matrix in a variable - 14:23 Matrix operations (e.g. addition, multiplication) - 18:11 Special matrices (ones_matrix(), zero_matrix(), identity_matrix(), random_matrix()) - 21:55 Accessing an element(s) from your matrix - 26:21 This video uses SageMath 9.1. To download the latest version of SageMath and view the documentation, visit https://www.sagemath.org/. This video accesses SageMath online using a Jupyter notebook from https://www.cocalc.com. For more information on using Jupyter Notebooks with CoCalc, visit: https://cocalc.com/doc/jupyter-notebook.html.