Lin Alg: Orthogonal matrices preserve angles and lengths

[GreatTemplar]

can you use more numbers and matrices when you do your videos? Mainly more examples with actual numbers in matrices. please.

[jazzoff]

This is really good, concise and easy to understand, thanks.

[niggasan]

Im currently taking a linear algebra class and this video has helped me understand so much stuff!!, this is some good stuff man THANKS ALOT!!

[norwayte]

Could you record a video with all the formulas/outcomes/take-aways and how they relate to each other? A commented overview so to speak for understanding the coherence and for the ability to use it for applications. Thank you.