This lecture is definitely a positive effect on my grasp of the matrix, and this lecture plays a pivotal role in the whole series. Thank you prof. Strang. Nobody has explained those concepts so clearly and coherently -- a whole new world is ahead of me. This is a must-see. A genuine human heritage.####[['lecture', 'Course_General_Feedback', 'POS'], ['grasp of the matrix', 'Other', 'POS'], ['lecture', 'Course_General_Feedback', 'POS'], ['prof. Strang', 'Instructor', 'POS'], ['concepts', 'Mathematical_Related_Concept', 'POS']]