Orthogonal Matrices

[@MathTheBeautiful]

Go to LEM.MA/LA for videos, exercises, and to ask us questions directly.

[@NederHopp]

He explains orthogonal matrices with the same passion as a civil right's activist.

[@hugoirwanto9905]

omg you're the best teacher of linear algebra

[@MattyHild]

Stopped the lecture @3:02. Because he already explicitly stated the theorem so I could understand it. Quickest explanation out there

[@victorserras]

I’d love to have teachers that are as passionate as this guy. My introductory linear algebra teacher comes into class and starts talking for 2 hours straight and doesn’t give half a fuck about whether or not people are actually learning.

[@HarshKumar-tw3st]

Well I have a similar professor..

[@raybroomall8383]

MIT Professor G. Strang. And this guy (would like to know his name) are all you need. Use Strang's textbook and follow the KZbin lectures. Once you have it down you can challenge any course. I also recommend following up with MatLab. There's a Matlab app for your phone.

[@esc120]

This channel is a miracle!!!

[@AlgoStudy]

wonderful lecture...... thank you !

[@erichsieh6596]

it's funny how he say: Or"thugga"nal Matrix 4:28 5:43 10:49

[@ardalanardalan441]

You are great. Thanks for the video.

[@elektikplayz129]

this is gold

[@tcchan14]

Good explaination

[@raybroomall8383]

I use the MatLab phone app to follow along... it's purely for entertainment, I'm not a student... Q transpose * Q does not equal the identity matrix. Q'*Q is not eye() .... inv(Q)*Q = eye() and Q*Q' = eye()

[@martinsanchez-hw4fi]

It may be due to numerical errors

[@morganisles4222]

I also calculated something other than the identity for Q^T*Q. I checked it in symbolab too

[@Hythloday71]

Ah, widescreen, nice. Or is it panoramic ?

[@TheVitunia]

Sir, thank you, great explanation!

[@georgeorourke7156]

If AB=I then BAB=B and BABB-1=BB-1 or BA=I QED

[@kottelkannim4919]

1. Thank you! 2. The 3rd statement assumes there is a right-inverse of B - the existence of such inverse one's trying to demonstrate. 3. A formal proof using basic terms which resembles yours : math.stackexchange.com/a/2532661

[@jameschen2308]

The chad orthonormal matrix vs the virgin orthogonal matrix. XD

[@wolftribe66]

morpheus?