Tensor Calculus For Physics Majors 005| Diagonalizing 2nd Rank Tensors

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  • čas přidán 27. 08. 2024

Komentáře • 54

  • @ntesla66
    @ntesla66 Před 3 lety +8

    That was a very worthwhile and satisfying 40 minutes of my life well spent. The way you keep jumping back and forth between the Dirac, Partials and Index notation is really helping turn some lights on for me! Thank you, Mr. Dotson.

  • @eeshaanjain696
    @eeshaanjain696 Před 4 lety +7

    I am watching this now, and am glad I did a course on Linear Algebra last semester that covered eigenvectors and spectral and what not in detail , and that is helping so much in understanding this

  • @quahntasy
    @quahntasy Před 5 lety +25

    40 mins video. Jeez Andrew what's the secret of your energy.

  • @syedanaushabinzakirkhan20p50

    Forget the transformation of tensors, I'm watching Andrew transform throughout the playlist.

  • @gauravahuja8410
    @gauravahuja8410 Před 5 lety +15

    Oh man!!!
    What about us, the highschoolers
    C'mon man!!
    Think about us, the little kids who think we can change the laws of fucking thermodynamics...
    *I'm still gonna watch it, like it...*

  • @maorizeroalpha835
    @maorizeroalpha835 Před 4 lety +1

    Great job Andrew, it shows exactly the hard work of a physics major! Keep going

  • @neelmanichaturvedi7901

    Keeping your quality content apart , man you have some nice t-shirts ✨!

  • @vangetinikhil2767
    @vangetinikhil2767 Před 5 lety +2

    nice bro, its very useful, I think th professors over NMSU are very good , hence the byproduct like students like you are making very exciting videos, keep it up bro.

  • @duncanw9901
    @duncanw9901 Před 5 lety +30

    Every time Andrew wrote 1/sqrt(2) a small piece of me died

    • @angelmendez-rivera351
      @angelmendez-rivera351 Před 4 lety +1

      2^(-1/2) >> 1/sqrt(2) >> sqrt(1/2) >> sqrt(2)/2

    • @KyleDB150
      @KyleDB150 Před 3 lety

      @@angelmendez-rivera351 you forgot 1/(1/2)^(-1/2)

  • @awwkaw9996
    @awwkaw9996 Před 4 lety +1

    I know this is a late comments, but I think it would have been nice If you had shown solving one of the Eigenvalues by reducing the matrix to it's echelon form. I think it's good to show that these things can be done in different ways.

  • @Tomaplen
    @Tomaplen Před 5 lety +8

    Isn't this just linear algebra?
    I did this in my 2nd year of university in a course called "Rigid solid mechanics"
    nice video thanks

    • @angelmendez-rivera351
      @angelmendez-rivera351 Před 4 lety +18

      It is a generalization of concepts of linear algebra. Tensor calculus is ultimately just the calculus of multilinear algebra.

  • @seanlewis3867
    @seanlewis3867 Před 3 lety

    Been out of college for a couple years and trying to refresh on math basics and finding these videos really helpful. Very concise with just the right amount of rigor for reference. You may have already answered this somewhere else but could you please provide a list of what you think are the most helpful problems to work through from each chapter of Neuenschwander? Thank you so much for doing all this work

  • @christodouloufamily4341

    Great talk. Thanks.

  • @miguelaphan58
    @miguelaphan58 Před 5 lety

    ...it getting better and better any time.....great !!!!

  • @antimatter2376
    @antimatter2376 Před 5 lety +17

    g=10 right?

    • @AndrewDotsonvideos
      @AndrewDotsonvideos  Před 5 lety +7

      what else would it be

    • @antimatter2376
      @antimatter2376 Před 5 lety +4

      Andrew Dotson ikr. These damn physicists thinking they can assign units a non-integer value.

    • @zoltankurti
      @zoltankurti Před 5 lety +2

      @@AndrewDotsonvideos pi^2 but I guess that also is 10...

  • @raunaksarada
    @raunaksarada Před 5 lety +1

    really thanks for your hard efforts

  • @alizaiour4438
    @alizaiour4438 Před 5 lety +3

    I m a 10 th grade student physics is my favorite and watching ur vids are really enjoyable since its actually a Bit interesting unlike easy for babies physics in school ❤️🙃

    • @alizaiour4438
      @alizaiour4438 Před 5 lety

      Shubhranshu Srivastava nice ( if it true ) 😂

  • @jessondesign
    @jessondesign Před 5 lety +11

    Listen I'm not that great at math, but I like the satisfying look of equations and numbers...but I have NO idea what's going on

    • @MylittlePonyTop
      @MylittlePonyTop Před 5 lety +1

      I'm trying to understand but at the same time I'm failing miserably

  • @hasch5756
    @hasch5756 Před 5 lety +2

    I wanted to remember a clever comment idea. Unfortunately, I am right adjoint to the sheafification functor

  • @NachiketJhalaRA
    @NachiketJhalaRA Před 3 lety

    hats off to you sir for showing all the basic calculations🙏🙏

  • @lvl3tensorboi929
    @lvl3tensorboi929 Před 3 lety

    I know Im getting better at this stuff because this was relaxing to watch for me

  • @duckymomo7935
    @duckymomo7935 Před 5 lety

    Yay! Thanks for the great vid!

  • @fozymilograno
    @fozymilograno Před 3 lety

    Great lectures!

  • @mohannadislaieh3009
    @mohannadislaieh3009 Před 5 lety

    Very clear bro thanks 😍

  • @khurshedfitter5695
    @khurshedfitter5695 Před 4 lety +2

    Won't rho3 be +1 or -1 instead of just +1? At around 22:00

    • @debbieparra7086
      @debbieparra7086 Před 2 lety

      I'm wondering the same thing? Had me second guessing my vector math! Shouldn't rho 3 be i?

  • @alizaiour4438
    @alizaiour4438 Před 5 lety

    Great vid 👌

  • @duncanw9901
    @duncanw9901 Před 5 lety +5

    Me: can I has tensor calc
    Andrew: for understanding?
    Me: yeeeeeeeeeees
    Me: actually double speeds like a boss
    Chipmunk time!
    ps tell the other high schoolers to stop complaining and just git gud lul

  • @jordanfreidel1751
    @jordanfreidel1751 Před 3 lety

    5:11 why do you not write down Rho again?

  • @aidansgarlato392
    @aidansgarlato392 Před 5 lety +1

    Honestly, I've been doing some research and I'm kinda pissed. I know a bit quantum mechanics so my question is are operators in quantum mechanics the same as tensors.

    • @angelmendez-rivera351
      @angelmendez-rivera351 Před 4 lety +2

      Aidan Sgarlato No. Some operators are not tensors, and some tensors are not quantum mechanical operators.
      The mathematics of tensor calculus are almost always applied to classical theories of physics, not quantum theories. By applying a quantum formalism to tensor calculus, you can talk meaningfully talk about quantum tensors, which generalize many of the operators, but not all are generalized to be tensors.

  • @evanspector1200
    @evanspector1200 Před 5 lety +3

    Ha! Third, I mean, approximately pi'th comment!

  • @non-inertialobserver946

    Is it guaranteed for the inertia tensor that the eigenvectors are perpendicular?

  • @kaisu8198
    @kaisu8198 Před 5 lety

    You lost me at I acting on row😂

  • @zoltankurti
    @zoltankurti Před 5 lety

    I finally got the time to increase the wievs on the video. :D

    • @zoltankurti
      @zoltankurti Před 5 lety

      Just give an index to alpha, maybe in parentheses in order not to confuse summation indexes.

  • @zokalyx
    @zokalyx Před 5 lety

    dANG it I'm late

  • @Mforader1792
    @Mforader1792 Před 9 měsíci

    Zero. Is there any real value man. Is it real?

  • @tyh7529
    @tyh7529 Před 5 lety

    First again :)