Your Daily Equation #16: Fourier Series -- The "atoms" of Math

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  • čas přidán 20. 04. 2020
  • Episode 16 #YourDailyEquation: Much as matter, however complicated, can be decomposed into combinations of atoms, mathematical functions, however complicated, can be decomposed into combinations of simpler functions--sines and cosines. In this episode of Your Daily Equation, Brian Greene discusses this remarkable discovery of Joseph Fourier, which has profound applications in both math and physics.
    Even if your math is a bit rusty, join Brian Greene for brief and breezy discussions of pivotal equations and exciting stories of nature and numbers that will allow you to see the universe in a new way.
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Komentáře • 81

  • @legendbird2008
    @legendbird2008 Před 4 lety +37

    Dear Professor, attending your daily home lecture NOW is like eating ice cream in hot summer or doing yoga after muscle burnout. Thank you so much!

  • @80sLuv
    @80sLuv Před 4 lety +9

    This is awesome! I've long waited to study fourier series. Learning it from Dr.Greene is like dream come true. Thank you professor!

  • @woody7652
    @woody7652 Před 4 lety +4

    Thank you for taking the time to teach us every day, it's a real pleasure learning from you.

  • @johng7602
    @johng7602 Před 4 lety +12

    listening to the genius teaches us some trivial stuff is really fun

  • @timetraveler1203
    @timetraveler1203 Před 4 lety +3

    I love these so much. As an undergraduate physics student this is so useful and fun series. thanks professor!!

  • @hibatulshafi9570
    @hibatulshafi9570 Před 4 lety +5

    Simplest introduction to fourier series👍 plz talk more about fourier transform

  • @kavita3689
    @kavita3689 Před 3 lety +1

    It's really insperiable seeing your videos.Explanation is really good

  • @numankaraaslan
    @numankaraaslan Před 4 lety +5

    This series is worth thousands of dollars because it gives you insight and perspective. Most of the educational systems does not do that.

  • @gregparrott
    @gregparrott Před 4 lety +2

    Thank you for discussing the Fourier series. While the Fourier series handles regular periodic functions, they're limited in their ability to handle more complex, irregular waveforms, such as a heartbeat. The logical sequel to discussing Fourier series and Fourier transforms is Wavelets. I hope you can segue into an episode on Wavelets

  • @venustus100
    @venustus100 Před 4 lety +1

    Thank you Professor Greene!

  • @TheMateusrex
    @TheMateusrex Před 4 lety

    Yet another amazing video. Thanks!

  • @petergreen5337
    @petergreen5337 Před 8 měsíci

    Thank you very much for your help and clear guidance

  • @SD_EDITZ77
    @SD_EDITZ77 Před 2 lety

    This is most likely the best explanation of any math topic I have ever seen!

  • @hinamiemad6981
    @hinamiemad6981 Před 4 lety +1

    Very nicely explained.

  • @bkkfootball
    @bkkfootball Před 4 lety

    Great explanation! Made understandable to everyone.

  • @demetrisnicolaides1544
    @demetrisnicolaides1544 Před 4 lety +1

    Thank you!

  • @laaradee
    @laaradee Před 4 lety

    Love it, thanks

  • @timewalker6654
    @timewalker6654 Před 4 lety +1

    Gave me goosebumps

  • @interVULife
    @interVULife Před 4 lety +2

    I'm so excited to attend the class

  • @KeithWilliams73
    @KeithWilliams73 Před 4 lety +2

    I've been loving these videos and look forward to them every day. I am curious as to the software / hardware you are using. You are obviously using a large iPad as a graphics tablet, what app are you using on the iPad, and what on the desktop? I'm thinking something similar would make my life so much easier (drawing with a mouse is difficult), but I'd need a PC equivalent as my employer is all PC and not willing to pay the Apple prices.

  • @liznval11
    @liznval11 Před 4 lety

    Good series....!.....

  • @donnahaynes8766
    @donnahaynes8766 Před 2 lety

    12:16 I studied sophomore physics under Dr Krishna Kumar (long ago) and he wielded the chalk (way before white boards) in his right hand and the eraser in his left. The phrase that I most hated to hear from him was "and immediately we see that". I would spend the rest of the class just trying to write as fast as he did copying everything he wrote on the blackboard. After a couple of hours with my notes and the text book that evening, I would finally figure out what was "immediate" to him. He was brilliant. Me, not so much. I was privileged to take a class with him. Very frustrated, but privileged! Sometimes, I had to take a problem that I couldn't solve to my other physics professors for help because Dr Kumar would look at my work and say "you have it right there. You just need to finish it." when I couldn't even see what the next step was. He just couldn't fathom why I was unable to finish the problem.

  • @farzanroshdieh698
    @farzanroshdieh698 Před rokem

    Just thank you.

  • @burtmadden8944
    @burtmadden8944 Před 4 lety

    Dr. Greene, I enjoy your videos very much. Maybe sometime you could present one on the normal probability distribution and the normal equation.

  • @rajibsarmah6744
    @rajibsarmah6744 Před 3 lety +1

    Your student are very lucky, brilliant professor

  • @samyakjain2193
    @samyakjain2193 Před 4 lety

    Thanks a lot sir.

  • @drquantum439
    @drquantum439 Před 4 lety

    Thanks a lot sir

  • @CarlosPilaf70
    @CarlosPilaf70 Před 4 lety

    thanks a lot, and yes, please explain the Fourier and Heisenberg principle, it is the best form to understand it.

  • @black_jack_meghav
    @black_jack_meghav Před 3 lety

    So freaking good.

  • @martijn130370
    @martijn130370 Před 4 lety

    Fantastic explanation. Fourier has amazing applications, also e.g. wave to mp3

  • @donnahaynes8766
    @donnahaynes8766 Před 2 lety

    OMG I think that i must seriously review my calculus classes from 40 years ago before I can really grasp this.

  • @naimulhaq9626
    @naimulhaq9626 Před 4 lety

    Thank you. Post one on Bessel's function, please.

  • @TheMorpheuuus
    @TheMorpheuuus Před 4 lety

    Inspiring episode! Thank you so much. I am amazed seeing that Heisenberg equation is a special case of Fourrier serie..... Tempted to say that Maths are discovered not invented by human mind 🤔

  • @HugoHabicht12
    @HugoHabicht12 Před 4 lety

    Also Taylor Series please. Love your channel ❤️

  • @nazishahmad1337
    @nazishahmad1337 Před 4 lety +2

    Professor Greene, If you're going for some mathematical physics concepts
    I'd like you to do a series on special functions for example
    a. Reimann zeta function
    b. Beta and Gamma function
    Also I'd like you to do a video 4D Minkowski space time and geometry
    and also the Poincàre formulation of the same geometry.

    • @josephbieberly8624
      @josephbieberly8624 Před 4 lety +3

      After he finishes all that do you want him to wash and wax your car?

  • @kagannasuhbeyoglu
    @kagannasuhbeyoglu Před 4 lety

    Dear Brian Greene, although i do not understand anything due to the insufficiency of subtitles. You share valuable information.
    Thanks a lot👍

  • @nvanderhoff
    @nvanderhoff Před 4 lety +1

    I love this as much as 3blue1brown, but it's also daily!

  • @lysopanha1374
    @lysopanha1374 Před 4 lety

    Brian, next videos , could u explain about laplace or fourier transform.... ?

  • @mydroid2791
    @mydroid2791 Před 4 lety

    Yay yay yay yay!
    But are there other (orthogonal) functions that are used nowadays, besides sines and cosines? I think I read once about a function that varied in scale, that is used (in computer graphics?).

  • @JansthcirlU
    @JansthcirlU Před 4 lety

    Hi professor, could you give us a glimpse into Hamilton's insights that led to his discovery of quaternions?

  • @gregparrott
    @gregparrott Před 4 lety

    In professor Green's televised presentations discussing string theory, different models proposed 10, or perhaps 11 dimensions exist. Since one of the dimensions is time. it suggests we only 'see' one of either 3 or 3.3 Cartesian dimensions in each of the 'X', 'Y', and 'Z' coordinates. It would be profound if the true answer was in between, namely: 'PI'. However, this might suggest that a Cartesian system is ill suited as the framework for modeling string theory.

  • @matiasbatalla8713
    @matiasbatalla8713 Před 4 lety

    Hello, does anyone know what the name of the slate apple you are using is called? thanks. sorry for my English

  • @BabyXGlitz
    @BabyXGlitz Před 4 lety

    Fourier series was also used by Andrew Wiles to prove Fermat's Last Theorem
    a^n + b^n not equal to c^n for n>2 and a, b and c are integers greater than zero

  • @strikeblade6669
    @strikeblade6669 Před 4 lety +1

    professor greene plz make an episode about heisenberg's uncertainty principle

  • @neurophile
    @neurophile Před 4 lety

    Thanks so much for all. The only minor problem here is that the "square wave" is not a function !

  • @johnschepens3357
    @johnschepens3357 Před 4 lety

    Hi dr Greene, how about making this series into a book?

  • @A.K04
    @A.K04 Před 4 lety

    Pls explain me uncertainity principle, I am thinking of it a lot but not reaching a result.

  • @tp11051965
    @tp11051965 Před 4 lety +4

    This is so good I am already feeling slightly concerned somebody might find a vaccine.

  • @Brainsmachine1
    @Brainsmachine1 Před 4 lety +1

    What is your take on the idea that subatomic particles could be made of smaller living creatures. Like the strings are small worm like creatures swimming in a cosmic ocean¿

  • @shouvikmondal1977
    @shouvikmondal1977 Před 4 lety

    What happen if we will ever find out the theory of EVERYTHING ? Is this the end of the journey of physics !!!!
    And I am studying in 2nd year (physics).If you give me some advice about how to do research it will be very helpful to me. I am your huge fan .Love from INDIA.
    Thank you

  • @ScottRedstone
    @ScottRedstone Před 4 lety

    I’d forgotten about this fir a very kong time. It caused me think of something else. What would the physical world resemble if pi were an integer?

    • @gregparrott
      @gregparrott Před 4 lety

      Interesting question. But I am missing where you may be trying to head with this. I'm stuck on the implication that the relationship between a circle's diameter and its circumference would be '3' and that the inscribed area, volume and higher dimensional equivalents would shrink.

  • @prabirkumardash653
    @prabirkumardash653 Před 4 lety +1

    Hello Professor

  • @loren-emmerich
    @loren-emmerich Před 3 lety

    A Loren Emmerich production was here

  • @vvgman
    @vvgman Před 4 lety

    Why don't we use some Fourier analysis on our relationship and reduce to a series of simple periodic functions.

  • @MumtazAli-bt3ue
    @MumtazAli-bt3ue Před 3 lety +1

    Where is a0 came from?

  • @Mike-zb7ts
    @Mike-zb7ts Před 4 lety

    "...and now, as we all know..." Me? Not so much! But I'm learning. :)

  • @vivektodaria7274
    @vivektodaria7274 Před 4 lety

    I don't receive any notification that you are live😠😠😞

  • @xspotbox4400
    @xspotbox4400 Před 4 lety

    By the end of this class we will all learn how to build our own smart phone.

  • @rameshjha6985
    @rameshjha6985 Před 4 lety +2

    Why the sum of all natural number up to infinity is -1/12

    • @pandabearguy1
      @pandabearguy1 Před 4 lety

      Not really an accurate statement, or formulation. Divergent series can through various methods be renormalized to some converegent value. It goes quite deep into analysis and the notions of sums and integration etc

    • @nazishahmad1337
      @nazishahmad1337 Před 4 lety

      No that's not the case
      You can't add some positive numbers and think of getting a negative
      That's the result we get from a concept called the Analytic Continuation , Reimann zeta function.

    • @fantasia55
      @fantasia55 Před 3 lety

      That’s been proven several different ways.

    • @Rayquesto
      @Rayquesto Před 2 lety

      Because alternating series can be cleverly manipulated.

  • @michaelwhalan9783
    @michaelwhalan9783 Před 4 lety +2

    Einstein imagined riding on a greene light-wave.

  • @pranatsharma4687
    @pranatsharma4687 Před 4 lety

    What if f(x) is an odd function, then definite integral from -L to L will always be 0.

  • @johnfarris6152
    @johnfarris6152 Před 4 lety

    😎

  • @howarddelosreyes463
    @howarddelosreyes463 Před 4 lety

    What app is he using on his ipad?

  • @iainmaclean4770
    @iainmaclean4770 Před 4 lety

    Navier stokes equation
    Einstein’s field equation
    Sum of all natural numbers= -1/12

  • @92587wayne
    @92587wayne Před 3 lety

    The number you are looking for is smaller than something but larger than nothing, is infinite, is not measurable as to location and momentum is Space-Time, actually exists and not exist at the same time, in Space.

  • @ABetterWeapon
    @ABetterWeapon Před 4 lety

    Two questions. Why is the boxing glove so close to the television? Why is there only one?

    • @briangreene6975
      @briangreene6975 Před 4 lety +2

      Baseball glove...only one as need the other hand to throw...why so close to TV? Entropy.

  • @vaibhavkumar3106
    @vaibhavkumar3106 Před 4 lety

    profesor talk to us some thing about dark matter abd dark energy.... which make upto more than 90 % of universe

  • @loren-emmerich
    @loren-emmerich Před 3 lety

    Hear tube, then you'll know