Diagonalize 2x2 matrix

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  • Опубликовано: 4 фев 2025

Комментарии • 87

  • @albertemc2stein290
    @albertemc2stein290 6 лет назад +52

    I'm a simple mathematician. I see a Peyam video. I like the video.

  • @jacobpickos733
    @jacobpickos733 Год назад +1

    The MAN, the MYTH, and the LEGEND. Thank you, Sir!!!

  • @ServerDweller
    @ServerDweller 3 года назад +10

    I've got my end of years exams coming up and I can't believe I've just found a single channel that covers such a large portion of the content. I wish I had found it sooner. Thanks for the video!

  • @brianlamptey4823
    @brianlamptey4823 5 лет назад +12

    I've tried looking for this stuff online, this is the first time I've found someone who has cared to go into the 'how'.

  • @jososa5717
    @jososa5717 9 месяцев назад

    Clearest, best video on the topic. You have a gift for teaching, thank you so so much Dr. Peyam!

  • @Selenatorgirl544
    @Selenatorgirl544 2 года назад +5

    Thank you for being so positive in every video! (please don't feel pressure bc I say that.) It's so obvious that you love math and bc of this energy of you I feel like I can solve any problem :) Thank you again!!

    • @drpeyam
      @drpeyam  2 года назад +1

      Thank you!!! 😁

  • @dolevgo8535
    @dolevgo8535 6 лет назад +23

    MAN i literally had my linear algebra test two days ago :( damn it!
    anyways thank you so much!

  • @jacobvandijk6525
    @jacobvandijk6525 2 года назад +1

    What are you hiding behind that permanent smile? Uncertainty? A cruel parent? Naivety? Real happiness? Or what?

  • @MrCigarro50
    @MrCigarro50 6 лет назад +2

    So great, as always, clear and helpful. Thank you.

  • @eduardorivera508
    @eduardorivera508 6 лет назад +11

    Ooohhh! I'm excited for the Legend Of Zelda analogy!!

  • @determinantmatrix9584
    @determinantmatrix9584 3 года назад +1

    Really loved this video
    Thanks Dr. Peyam

  • @Titurel
    @Titurel 3 года назад

    Dr. P is one of my math heroes!

  • @adelbennaceur7636
    @adelbennaceur7636 4 года назад +2

    thank you sir i really like your energy

  • @unless14th
    @unless14th 4 года назад

    Thank you for this solution. It makes me clearly and able to prepare teaching materials easily. Your explanation is easy to understand for many people who are interested in Math.

  • @gvantsasakaruli9900
    @gvantsasakaruli9900 Год назад

    You did something in such a short time that my professor has been struggling to explain for last two lectures with each being 1,5 hour long..

  • @BaljinderSingh-tf2sn
    @BaljinderSingh-tf2sn 4 года назад

    amazing what a simple explanation to problem which looked very complicated!!!!!!!!!!! thanks alot !!!!! please keep uploading the videos you are doing amazing job!!!!!!!!!!!!!!! Great work

  • @yasseralg3928
    @yasseralg3928 5 лет назад +2

    I love you! I said it to you first before my soon-to-be wife!!

    • @drpeyam
      @drpeyam  5 лет назад +1

      Awwwww, what an honor! 🥰

  • @axollotl5813
    @axollotl5813 5 лет назад

    short simple and clear. Well Done 👍

  • @noahalexander3607
    @noahalexander3607 5 лет назад +1

    i love this man

  • @mathkaveli11
    @mathkaveli11 Год назад

    Love your work

  • @adrianleranoz13
    @adrianleranoz13 6 лет назад +1

    Me encantan tus vídeos! Sigue así!

  • @jimnewton4534
    @jimnewton4534 Год назад

    do you have an example video where you diagonalize a matrix with a 0 eigenvalue or with eigvenvalues of non-1 multiplicity?

  • @eliascaeiro5439
    @eliascaeiro5439 6 лет назад +1

    42 ! Great video as always.

  • @raphaelcosta4352
    @raphaelcosta4352 5 лет назад

    Tks, i love it. Linear algebra is very beatiful

  • @bradvincent2586
    @bradvincent2586 4 года назад

    wow this was insanely helpful!

  • @dominikstepien2000
    @dominikstepien2000 6 лет назад +3

    That's great I've just started learning linear algebra, make more videos about LA, please!

    • @drpeyam
      @drpeyam  6 лет назад +2

      I have a whole linear algebra playlist if you’re interested!

    • @dominikstepien2000
      @dominikstepien2000 6 лет назад +1

      Dr. Peyam's Show Thank you, I love your videos, keep up with great work!

  • @nawelouahrani9588
    @nawelouahrani9588 4 года назад +1

    This guy is so cute, makes me want to learn more !!

  • @jesuisjustinian
    @jesuisjustinian 6 лет назад +1

    Just in time for my LA final today :D

  • @eljonaballa6853
    @eljonaballa6853 3 года назад

    My exam is tomorrow and here I am btw thank you for this video

  • @azazahmed1842
    @azazahmed1842 2 года назад

    aahhhhh sooo helpful thaaanks

  • @brandonpanuco8546
    @brandonpanuco8546 2 года назад

    Thanks, im preparing to take my final.

    • @drpeyam
      @drpeyam  2 года назад

      Good luck!!!

  • @jeongohseo3631
    @jeongohseo3631 5 лет назад

    Thx for good lecture :) very helpful to me!!

  • @lulinchuan5281
    @lulinchuan5281 2 года назад

    such a pity not being able to meet u at berkeley!watch your video for both math110 and ee120(matrix exponential)

    • @drpeyam
      @drpeyam  2 года назад +1

      I love 110

  • @cicciobombo7496
    @cicciobombo7496 6 лет назад +4

    0:50 (A)li-A
    *TU TU TU TU TUM TUM TUM*

  • @mohammedmadani7277
    @mohammedmadani7277 4 года назад

    I love dr peyam

  • @DrJessicaGrogan
    @DrJessicaGrogan 5 лет назад

    Are the signs on your null spaces for the Eigen vectors supposed to be switched?

    • @DrJessicaGrogan
      @DrJessicaGrogan 5 лет назад

      Wait, seeing it doesn't matter because the difference is just scaling by -1

  • @loveen3186
    @loveen3186 4 года назад

    great teacher

  • @plaustrarius
    @plaustrarius 6 лет назад +2

    eigenventors, meaning that the output vector of the transformation is in the same direction as the input vector. that's implied when you said the matrix minus (eigenvalue) x (identity matrix) is another matrix whose null space is non zero.
    what is my transformation rotates all of the inputs? this means your eigenvalues would be imaginary, with the eigenvectors having imaginary components themselves.
    Do hyper complex numbers show up for higher dimensional transformations? I would assume so, since you would need more distinct eigenvectors for transformations of higher dimensional space.
    I hate calling them imaginary numbers, this is such a natural development and use of them, its hardly imaginary at all.

  • @Romulo_Cunha
    @Romulo_Cunha 6 лет назад +1

    I'm sure you know it, but just one trick to help people find eigenvalues faster in this case, as you can notice the sum of columns is 3, which indicates one of the eigenvalues is 3, and the main diagonal tells us the sum of the eigenvalues is 7, so the other eigenvalue must be 5.

    • @jagadishkumarmr531
      @jagadishkumarmr531 2 года назад

      Wait, this works!! But how?

    • @Romulo_Cunha
      @Romulo_Cunha 2 года назад

      @@jagadishkumarmr531by definition, Av=lambda*v. Assume you have a matrix which all entrances are a multiple of k. Then you can factor out the k so you will end up with a k*A which is exactly the definition of eigenvalues

  • @nouralhuda3530
    @nouralhuda3530 9 месяцев назад

    Thank you

  • @akay37
    @akay37 6 лет назад

    Thank you so much!

  • @Contradi
    @Contradi 6 лет назад

    I don't know if the Legend of Zelda video you talked about is up, but does the analogy have to do with the Temple of Time in Ocarina? I won't spoil the analogy if that's it, but I have a hunch.

    • @drpeyam
      @drpeyam  6 лет назад

      Will be posted on Thursday 😜

    • @Contradi
      @Contradi 6 лет назад

      Dr. Peyam's Show can't wait!

  • @nadeenyahya1384
    @nadeenyahya1384 5 лет назад

    Thankyou well explained

  • @Gabbyreel
    @Gabbyreel 6 лет назад +1

    Thanks!

  • @meh7272
    @meh7272 6 лет назад +2

    Like to dislike ratio is quite large as of now [210/0]. Its so large that we can't even comprehend it XD.

  • @jessiemanopo
    @jessiemanopo 6 лет назад

    What is the nul (matrix)?

    • @tofu8676
      @tofu8676 6 лет назад +1

      let A be a matrix then nul(A) (=nullspace of A or kernel of A) is the vectorspace of all vectors which multiplied with A would yield the nullvector.
      So if x is in nul(A) then Ax=0 (vectors)

  • @holyshit922
    @holyshit922 6 лет назад

    ... but not always diagonalization is possible
    Maybe something about Jordan form ?
    Jordan form is generalization of diagonalization

    • @drpeyam
      @drpeyam  6 лет назад

      There’s a video about that :)

    • @holyshit922
      @holyshit922 6 лет назад

      If you presented Jordan form correctly viewers should not have problems with diagonalization
      but i dont thik that 23 minutes is enough to present all cases

    • @Arycke
      @Arycke 6 лет назад +1

      Jacek Soplica Implying he didn't present it correctly. Both videos are simple to follow along with, albeit my main study is mathematics so I am quite biased. These videos aren't meant to be 100% comprehensive of everything except the individual problems or derivations of formulae. E.g. this and the Jordan form video serve to stimulate the viewer to delve deeper, to learn the basic methodology and terminology, and cover enough of the basics to get the viewer going in the correct direction. Also, one could try their own problem and find out that their matrix is defective and then investigate that as that is a lengthy subject to cover for beginners in a short video. The title is "How to Diagonalize," not "A Treatise on the Entirety of Matrix Diagonalization and Generalizations Thereof."

    • @holyshit922
      @holyshit922 6 лет назад

      I saw both his videos and videos from MIT and i think that videos from MIT are recorded better
      Jordan form was deleted from MIT but i still can compare other videos
      I had basics of analysis (functions, sequences,series, limits,single variable calculus ) on my high school
      I read on forums that they have deleted it lately from teaching program

    • @Arycke
      @Arycke 6 лет назад

      Jacek Soplica Well you are entitled to think that. I don't know why you would speak of your freedom to compare videos here where it is practically irrelevant. What you said is akin to someone saying "Burger King nuggets are better" while stuffing their face with McDonald's chicken mcnuggets. Additionally, I and many others have had just as many ( or more) courses in high school than what you've described on top of their own personal endeavors. I don't see what that has to do with your original statement, so I'll write this off as a miscommunication due to a possible language and/or cultural difference. We all like mathematics and that's the most important thing my boi 💜 let's just keep it copacetic and watch any math stuff we want as we do and enjoy Dr. Peyam's enthusiasm and intelligence. Ya? :3

  • @omardelacruz9442
    @omardelacruz9442 4 года назад

    nice

  • @YorangeJuice
    @YorangeJuice 3 года назад

    i never liked doing diagonalization (especially orthogonal diagonalization), problems because they take soooooo long and are so tedious

  • @douro20
    @douro20 6 лет назад

    I haven't done anything with matrices in years...

  • @Myuri3146
    @Myuri3146 6 лет назад

    Do I have hope to get what that was promised... ?

    • @drpeyam
      @drpeyam  6 лет назад

      I’ve got videos lined up until mid-October, and that one is not one of them :/

    • @Myuri3146
      @Myuri3146 6 лет назад

      Guess I will have to watch your video till mid-October then

  • @raichu56k
    @raichu56k 4 года назад +1

    if eigen do it, so can you !!!!!

  • @aneeshsrinivas892
    @aneeshsrinivas892 3 года назад

    Here we go eigen

  • @Rundas69420
    @Rundas69420 6 лет назад +2

    What's the difference between an algebra-student and a trigonometry-student?
    Algebra one makes sign mistanes where the trig one makes sin mistakes. I'm going to bury myself for that one xD

  • @cameronspalding9792
    @cameronspalding9792 5 лет назад

    I thought the characteristic equation was det(A-lambda I)

    • @drpeyam
      @drpeyam  5 лет назад

      They’re the same since we’re setting it equal to 0

  • @avdrago7170
    @avdrago7170 6 лет назад +1

    When did you actually explain how to diagonalize a matrix?

    • @drpeyam
      @drpeyam  6 лет назад +2

      This whole process of finding eigenvalues/eigenvectors is called diagonalization

    • @6612770
      @6612770 6 лет назад

      I totally agree with AV Drago.
      This is the first session from Dr P. that I been left asking myself "Whaaaaaat?".

  • @AlessioAlessi
    @AlessioAlessi 2 года назад

    You don't actually need to calculate that determinant for 2x2 matrices. You just need the matrix determinant and its trace and you can write down straightforward the characteristic polynomial 😌

  • @cryptobeanbag7148
    @cryptobeanbag7148 5 лет назад

    Funny guy

  • @justwest
    @justwest 6 лет назад +1

    1337 views and 123 likes, lol

  • @ib9rt
    @ib9rt 6 лет назад

    You didn't demonstrate that A = PDP^-1 at the end? More significantly, you didn't demonstrate why this procedure works. It's like doing math by rote, without understanding.

    • @drpeyam
      @drpeyam  6 лет назад

      That wasn’t the point of the video anyway!

    • @halbmannhalbsib9881
      @halbmannhalbsib9881 5 лет назад

      for intuition on the topic u can watch the videos done by 3b1b

    • @nursultanbaitenov7505
      @nursultanbaitenov7505 3 года назад

      @@drpeyam you didnt solve P of -1