Dr. Underwood's Physics YouTube Page

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@danieldesalegn5386 2 күн бұрын

wow!

@kolinbrannon998 8 күн бұрын

Thank you

@toecamel8719 Ай бұрын

Great, compact, understandable. Thank you!

@StratosFair 2 ай бұрын

Best mathematically rigorous, yet accessible introduction to spherical harmonics i've seen on youtube. Thank you

@poxilos 3 ай бұрын

Thank you sir!

@c.g.6325 3 ай бұрын

Excellent video!

@ridwanrahman5232 6 ай бұрын

Yeah I’m learning that in year 5 and this video helps

@shadowrealm8937 7 ай бұрын

Can you give examples of how it can operate with matrices?

@HORIMEKABDERRAHMANE 9 ай бұрын

amazing

@YohannesAssefa-wk5oo 10 ай бұрын

Nice

@Repetends 11 ай бұрын

Thanks so much I missed a few weeks of school this semester and my physics teacher is being very unhelpful. This helped me very much on my unit project!

@hardiehero8987 Жыл бұрын

I am a certified professor and princeton and realized the immediate mistake at the beginning of the video. You noted both the -infinity and infinity on the integral symbol, which is completely unneccessary.

@Vampjay90 Жыл бұрын

This makes sense thank you!

@HosRo4161 Жыл бұрын

Oh wonderful! Wonderful! Thank you!

@mylegalname9852 Жыл бұрын

That gif in the lower-left from 1:15-1:25 helped so much. It was hard to visualize before that. Thank you!

@ta4h1r2 Жыл бұрын

You sir, have been a huge help. Many thanks!

@georgerevell5643 Жыл бұрын

So clearly explained thank you man! Makes sense.

@nemurerumaboroshi Жыл бұрын

Thanks a lot! But.. can anyone tell me where does this original differential equation come from? Why would anyone even try to solve this in 17xx? It feels like it just appears out of thin air, and then like - btw let's use it to solve Schrodinger equation...

@jacobmoralesgonzalez7582 Жыл бұрын

lambda=0 ends up being a trivial answer that not fulfill the boundary conditions, but lambda>0 has non trivial solutions (and that fulfill the boundary conditions)?

@eternalsunshine3066 Жыл бұрын

truly my lifesaver, thanks a lot sir

@kamaromanaturalskincare14 Жыл бұрын

Need explanation of the maths.

@flynais9870 Жыл бұрын

Sir, its "infinitesimal" and not "infintesimal".

@neverenoughgames72 Жыл бұрын

Your review is very good, but i have no clue whats going on here, im just high as hell 🤣

@dgnu Жыл бұрын

Genuinely good video

@DEL_HI Жыл бұрын

Hello sir,Could u pls help me to know in case of complex eigen value with with negative real part we have trajectories in the form of decaying spiral but how to know they are clockwise or anticlockwise

@Giocrafted Жыл бұрын

I've been SCOURING for a concise and clear tutorial and finally found one!! Dr Underwood, thank you so much for saving this physics undergrad this many years later. Cheers!

@cassianperera2426 Жыл бұрын

Hi Sir, your explanation is very clear and understandable. Thank you.

@ricky5369 Жыл бұрын

why is Y(y) not a complex function? From my class notes, is k^2 is negative it's sin+cos, but if it's positive then the solution to the de is a function of sinh(ix) + cos(ix)