Introduction to Matrix
Coordinate System
Link
https://www.oreilly.com/library/view/learn-arcore/9781788830409/03e5338d-02f1-4461-a57a-ef46a976f96b.xhtml
Row Vector and Column Vector
Link
https://study.com/academy/lesson/difference-between-a-row-column-vector.html
Elements of Matrix
Link
https://www.quora.com/Can-a-matrix-have-a-vector-in-each-element
Information: Introduction to Matrix