Converting From Lagrangian to Hamiltonian Like An ABSOLUTE NORMIE

  Рет қаралды 37,457

Andrew Dotson

Andrew Dotson

Күн бұрын

Пікірлер
@micayahritchie7158
@micayahritchie7158 6 жыл бұрын
Definitely do it in spherical and cylindrical coordinates
@mrahzzz
@mrahzzz 5 жыл бұрын
The "this should be a 'q_i-dot'. You didn't say anything" killed me. I'm having flashbacks.
@d0ntsayg00dbye
@d0ntsayg00dbye 5 жыл бұрын
You are currently saving my college career. All that stands between me and a degree in physics is a final in mechanics that includes the Hamiltonian
@__donez__
@__donez__ 6 жыл бұрын
Great vid! You should give an example when the Hamiltonian doesn't just turn into T + V
@AndrewDotsonvideos
@AndrewDotsonvideos 6 жыл бұрын
Good idea!
@SomeGod
@SomeGod 6 жыл бұрын
Oh shit backwards hat Andrew at a white board. This is obviously a math heavy video and I love it
@TheNachoesuncapo
@TheNachoesuncapo 6 жыл бұрын
its disrespectful to the whiteboard
@mrnarason
@mrnarason 6 жыл бұрын
when you see a reversed snapback you know shits gonna go down
@quahntasy
@quahntasy 6 жыл бұрын
Backward hat. Badass ready to tackle any problem on that whiteboard of his.
@hinata5736
@hinata5736 3 жыл бұрын
Omg, I've always watched your videos as a pupil and thought "This is so complicated, I'll never get there", but now I'm sitting here at 1am, learning for one of my exams of the second physics semester and understanding what you say for the first time ! Thank you !!
@mostafaahmednasr621
@mostafaahmednasr621 5 жыл бұрын
From lagrangian to hamiltonian is legendre
@chritophergaafele8922
@chritophergaafele8922 5 жыл бұрын
a lecture in levi-cevita symbol identities would be very helpfull
@x17exeventien79
@x17exeventien79 6 жыл бұрын
You can also derive the Legendre Transformation by using the total differential of L, and the Euler-Lagrange Equations. (Landau, Lifschitz. "Mechanics")
@manuelbonet
@manuelbonet 6 жыл бұрын
It would be great if you drew the dots a bit thicker, so that we could see them better.
@AndrewDotsonvideos
@AndrewDotsonvideos 6 жыл бұрын
I agree! Next time furshur
@chritophergaafele8922
@chritophergaafele8922 5 жыл бұрын
im am doing classical mechanics at university,,, everything you have done in this video is very helpful
@katgirl3000
@katgirl3000 3 жыл бұрын
Very nice Andrew! I needed that. Taking my first physics course (Classical Mechanics, Taylor's book) in over 45 yrs haha w/ no review and missing my old confidence :P. We just started the chapter on Hamiltonians and Great job - I feel better now!
@alexa.x
@alexa.x 6 жыл бұрын
So the whiteboard is on the wall
@andrewrezendes
@andrewrezendes 6 жыл бұрын
More Tensors man... I want to get at that group theory! (I won't cry if you do the coordinate systems though.)
@AndrewDotsonvideos
@AndrewDotsonvideos 6 жыл бұрын
I can't wait to make those videos again, definitely coming!
@BS-fk2zk
@BS-fk2zk 2 жыл бұрын
Very well explained. Thanks a lot! Greetings from Zurich
@bwoy12345
@bwoy12345 11 ай бұрын
Is there a difference between the legendre transform and the total derivative of a function? I never used the term Legendre transform in stat mech and just thought of it as a total derivative/differential. I can't find anything relating the 2 from a Google search and it's bothering me
@greenishiara9940
@greenishiara9940 6 жыл бұрын
Here I am in 11th grade, fighting back the fear of what's ahead of me by looking at *this*
@AndrewDotsonvideos
@AndrewDotsonvideos 6 жыл бұрын
Shhh don't be afraid little one.
@rk99688
@rk99688 6 жыл бұрын
You sounded like Thanos
@blackdynogeek1925
@blackdynogeek1925 6 жыл бұрын
I can’t wait until I can understand all this!
@mostafaahmednasr621
@mostafaahmednasr621 5 жыл бұрын
10 minutes later
@willie5069
@willie5069 6 жыл бұрын
Just what I am looking for, a basic well explained example. Please, please do this in Cylindrical and/or spherical and just do more with this precise theme, i.e., basic examples well explained. Thanks
@eekinchan6620
@eekinchan6620 3 ай бұрын
Does this work for non conservative systems?
@davidamayaperez6522
@davidamayaperez6522 6 жыл бұрын
Omg I love the whiteboard. It’s so big. Which one did you get? Also you in hats is 🔥. 🙌🙌🙌🙌
@AndrewDotsonvideos
@AndrewDotsonvideos 6 жыл бұрын
I got the Quartet 4ft x 6ft aluminum frame. It's nice, but it hangs from the top of the white board, so the bottom had space between it and the wall. So I velcro'd it to the wall
@khajrymariam718
@khajrymariam718 Жыл бұрын
what is the hamiltonian of L=square root of( 1-qdot square )
@alephnull6965
@alephnull6965 6 жыл бұрын
Why is your camera's axes not parallel to your white board's axes ?
@AndrewDotsonvideos
@AndrewDotsonvideos 6 жыл бұрын
Cuz parallel lines are for normies
@alphonseraynaud976
@alphonseraynaud976 4 жыл бұрын
I thought the Hamiltonian was T+V I understand the reasoning of this vid but it's not the result I expected Or does the sum term equal the Kinetic Energy?
@Metros23
@Metros23 6 жыл бұрын
Nice timing, bro. Gonna be introduced to Lagrangian and Hamiltonian mechanics later this semester 👍
@aryansudan2239
@aryansudan2239 Жыл бұрын
hey man can u do going from hamiltonian to the lagrangian
@kevinvigi.mathew6350
@kevinvigi.mathew6350 4 жыл бұрын
please do cylindrical and spherical pleasee.Love your work brother,thanks a lottt
@karimmohie1628
@karimmohie1628 6 жыл бұрын
What are some good sources (videos and textbooks) to learn Lagrangian and Hamiltonian mechanics, since my school doesn't offer them as a main course!? Thant u!
@crosisbh1451
@crosisbh1451 6 жыл бұрын
They're generally apart of classical mechanics courses, so look for books in that field.
@chrisallen9509
@chrisallen9509 6 жыл бұрын
my school uses classical mechanics by taylor, i've heard it's good. I'm using modern physics by taylor and it's good so far.
@Goku17yen
@Goku17yen 6 жыл бұрын
taylor or halliday and resnick for classical
@evanschmitz305
@evanschmitz305 6 жыл бұрын
Taylor’s Classical Mechanics (the big red book) is solid. Very easy and interesting to follow
@karimmohie1628
@karimmohie1628 6 жыл бұрын
Thank u all guys for the suggestions!
@sandeepchauhan6836
@sandeepchauhan6836 Жыл бұрын
That's an awesome video
@ventriloquistmagician4735
@ventriloquistmagician4735 5 жыл бұрын
Very easy explanation. Thank you.
@user-pt-au-hg
@user-pt-au-hg 6 жыл бұрын
What whiteboard do you recommend (name brand) is it hard to mount, how about a mobile one?
@jessicaonymous4352
@jessicaonymous4352 5 жыл бұрын
Thank you for saving my ass for my classical mechanics final 🙏
@claudiachaparro2257
@claudiachaparro2257 3 жыл бұрын
I love this video, thank you so much!!
@alexanderrobertson5530
@alexanderrobertson5530 6 жыл бұрын
Great video! Is that cap a Kaiba Corp cap from Yugioh?
@otisarmyalso
@otisarmyalso Жыл бұрын
Switch from cart colors to cylindrical wo justification
@joulesjams20
@joulesjams20 6 жыл бұрын
Why is the lagrangian Kinetic-Potential energy or more technically why is the action defined as the integral of Kinetic-Potential. (i get how the lagrangian and action are related because you want to minimise the action)
@kshitijgera5475
@kshitijgera5475 6 жыл бұрын
Make a video on it's physical significance,like that pendulum problem , that will help to understand its physical significance instead of maths
@petelok9969
@petelok9969 5 жыл бұрын
I should probably try repeating in some different coordinate systems! 🙂
@dominicellis1867
@dominicellis1867 4 жыл бұрын
It’s weird to think that velocity and in transitivity momentum although a time derivative of position does not explicitly depend on position yet you can’t describe the velocity with an initial position nor can you describe the position with an initial velocity position is only purely spatial and as soon as it has a temporal aspect you’re in velocity’s domain tack on a mass you’ve got some momentum add some Carl weathers baby you’ve got a stew goin
@Goku17yen
@Goku17yen 6 жыл бұрын
*A* *B* *S* *O* *L* *U* *T* *E* *M* *A* *D* *L* *A* *D*
@sihlearnold2158
@sihlearnold2158 4 жыл бұрын
It was helpful thank you very much
@nanjundaradhyahy9986
@nanjundaradhyahy9986 Жыл бұрын
thank you
@joeboxter3635
@joeboxter3635 3 жыл бұрын
@3:50 Oh yes I did say something! You weren't listening!
@gerardogutierrez4911
@gerardogutierrez4911 3 жыл бұрын
@8:09 Get you a man that looks at you the same way Andrew looks at his converstion from Lagrangian to Hamiltonian.
@tripplen1875
@tripplen1875 6 жыл бұрын
Well actually im a chemistry student over at switzerland but i also have quantum mechanics in the next semster and think that your videos are very interesting even though i dont really understand much
@evanschmitz305
@evanschmitz305 6 жыл бұрын
You forgot to expose that the Hamiltonian also can be written as just T + V. Silly Andrew. Great video though 👍🏻 cylindrical and spherical coordinates would be sick to do a video over
@AndrewDotsonvideos
@AndrewDotsonvideos 6 жыл бұрын
How silly of me! Thanks!
@arsouyevet3888
@arsouyevet3888 3 жыл бұрын
Thnks from algeriaa
@Etothe2iPi
@Etothe2iPi 5 жыл бұрын
Since H=T+V, it's obvious that H=2T-L.
@Simulera
@Simulera 9 ай бұрын
We’ll def do it in 9 minutes and then you will take your qualifiers. 😂
@WaveSound123
@WaveSound123 6 жыл бұрын
Do one in toroidal coordinates xD jk jk
@arrabalimaz622
@arrabalimaz622 5 жыл бұрын
smart people what is L just say it
@empatheticgrinch
@empatheticgrinch 3 жыл бұрын
*General-ass coordinates
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