I've just watched 4 different videos of this same topic and you explained it the best. Thanks, I have a final tomorrow.

This video explained QR factorization better than my professor did in half the time of his lecture. Thanks!

Thank you, this helped me a lot.

thanks for the videos, any videos on jacobi/subspace iteration & householder technique?

Thank you for your help!

Cool man! Your “easy” process is true and proven

Could you please recommend me the textbook you have used for QR factorization?

Great method for calculate R! Thanks

Hello, Can someone tell me how to get U3 .. if we have 3*3 (M) matrix..??

whats the algorithm for u? how do you calculate u_3?

Thanks, your video help me a lot.

thanks bro , its a great video and very helpful.... :)

very helpful, thank you

U r awesome man!!

top!! thank very much!!

Hello , does this algorithm works for a Square Matrix ?

Hi, thanks for the video. It was helpful but would've been cleaner if at around 4:00 it wasn't written down that u_2 = RHS where RHS is not a unit vector.

Thx a lot it real help , Linear Algebra is so important in Computer graphic and computer vision and i forget about it XD so ur video are helping thx again

Nice video, thanks

good job thank you

Bless you 🙏

Thank you:)

thank u keep rocking

how to get U3?

u just save me from failing bro.tnx

why did you divide length of m1 for u1 and length of u2 for u2?

when i use matlab it comes out the exact same number except the sign, why is that?

Good explanation and cute teacher. what else can i ask? haha

I am new subscriber.....(3×3)matrix using u3 formula ........rply plsss???????

king

upper triangle matrix is only possible with square matrix ... i think?????

I am sorry but, Q is not orthogonal. It is not left and right inverse with Q transpose. You get Q^TQ = I (so it holds for the usage in this example) but QQ^T !=I To be orthogonal Q would need to be a square matrix.

If you forget to divide u2 by its length, please make sure you rewrite that. There is nowhere in scientific computing where "u2=a, u2=b" is allowed.

bad call using a semi orthogonal matrix in a lesson that's meant to explain QR factorization. At least mention it.

I think your u2 calculation is missing a ||u1|| under the u1.. so it should be u2 = m2 - (/).u1 right?

Try multiplying your Q by R and we do not get our M so something you did is wrong :(

Acting so smart at 6:51 you made a mis-statement "mult by Q transpose" it should be left mult by Q inverse instead. Next because Q is orthonormal the Q inverse is Q transpose. That prevents a jump in logic.