The Laplace Transform: A Generalized Fourier Transform

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  • Опубликовано: 23 июл 2020
  • This video is about the Laplace Transform, a powerful generalization of the Fourier transform. It is one of the most important transformations in all of science and engineering.
    @eigensteve on Twitter
    Brunton Website: eigensteve.com
    Book Website: databookuw.com
    Book PDF: databookuw.com/databook.pdf
    Error: @10:20, should be e^{-st}
    This video was produced at the University of Washington
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Комментарии • 483

  • @Eigensteve
    @Eigensteve  4 года назад +243

    Error: @10:20, should be e^{-st}

    • @SRIMANTASANTRA
      @SRIMANTASANTRA 4 года назад +19

      But, this typo is understandable. Anyway, thank you, Prof. Steve.

    • @gaelc13
      @gaelc13 4 года назад +1

      the H(t) definition should rather be 0 for t=0, isn't it ?

    • @TURALOWEN
      @TURALOWEN 4 года назад +3

      Gael C. That is exactly how it is defined in the lecture.

    • @gaelc13
      @gaelc13 4 года назад

      @@TURALOWEN Exact, my error : the space is so crowded that I missed the fact that the system as it is written at @7:30 refers to F(t)

    • @nidhigoyal8893
      @nidhigoyal8893 4 года назад

      Sir is there any upcoming webinars or workshop of yours so that we could a bit more out of it ?

  • @hashirroshinvaliyaparambil70
    @hashirroshinvaliyaparambil70 4 года назад +119

    Your 16 minutes video on Laplace transform gave me a deep understanding in this domain thane my 4 years bachelor's degree. You are priceless Mr Steve Brunton

  • @user-lk9kr6ry9d
    @user-lk9kr6ry9d 5 месяцев назад +7

    I'm Korean. I do a study of Laplace transform in high school. I also studied Fourier transform but couldn't find their common points, but your help is wonderful. Thank you for your detailed lecture!!

    • @JHS-gu4lw
      @JHS-gu4lw 2 месяца назад

      캬 한쿡인 여기서 보네요

  • @tsalVlog
    @tsalVlog 4 года назад +131

    I don't know why, but I laughed really hard at "I think of it as a political Fourier transform".

  • @jonathanuis
    @jonathanuis 4 года назад +65

    I'm doing my masters in control, I never really understood how Laplace works, Thanks a lot Steve, you make the concepts very understandable.
    regards from Germany

    • @Eigensteve
      @Eigensteve  4 года назад +7

      Happy to help!

    • @vimostan269
      @vimostan269 4 года назад +3

      Agree! My ODE text book starts with the usage directly. I didn't even notice those badly behaved functions.

    • @Physicsandmathswithpraveen
      @Physicsandmathswithpraveen 3 года назад

      In books and school they teach laplace before fourier and we never get a chance to sit back and relate them yes 🙂

    • @Amine-gz7gq
      @Amine-gz7gq 7 месяцев назад

      laplace transform scans for sinusoidals and exponentials in your transfer function so you can locate poles (region where you have resonance between your TF denominator and the e^-st function) and zeroes.

  • @justin.booth.
    @justin.booth. 4 года назад +5

    This is the best lighting I have EVER seen in a math lecture video. Sheer perfection!

  • @jamen1993
    @jamen1993 4 года назад +6

    I thought that I grasped an intuitive understanding of the laplace transform once I recognised that it is essentially the correlation of a function with a decaying exponential oscillation, yet your presentation gave me additional insights.

  • @paxdriver
    @paxdriver 3 года назад +7

    This is the best video on RUclips. On the entire internet, this is the best one made. Thank you and kudos for being such a rad teacher

  • @jurepustoslemsek7882
    @jurepustoslemsek7882 4 года назад +8

    holy sh*t! I've been trying to figure out what Laplace transform actually does and you've finally explained it in a way that I understand. thank you so much!

  • @dashjinn
    @dashjinn 2 года назад +3

    You having only 186K subscribers with so many really interesting and impactful videos just says about the direction of our society so much.
    I wish I had your videos during my bachelors... my love for math would have remained.. Thanks.

  • @adityatandon2994
    @adityatandon2994 3 года назад +1

    This is probably the best explanation of the Laplace Transform that I've come across on the internet. 20 minutes did what 4 years of my bachelors degree failed to do - solidify my engineering math concepts.

  • @TKR911
    @TKR911 4 года назад +45

    Dear professor, you do a really good job with these explanations ! Thank you

  • @naveensd101
    @naveensd101 4 года назад +28

    I wish my math prof had this good handwriting.

  • @volkerblock
    @volkerblock 5 месяцев назад +1

    Excellent representation. Almost 60 years ago I learned the Laplace transformation, now I finally (hopefully) understand it.
    So, never give up, enlightenment will come at some point.

  • @1243576891
    @1243576891 3 года назад +1

    Awesome videos! I followed this series from the first one to here. Glad to learn the connection between Fourier Transform, Wavelet Transform and Laplace Transform!

  • @AJ-et3vf
    @AJ-et3vf 2 года назад

    Awesome teaching! Very insightful! I've watched tons of others videos about Laplace transform, but even in this I felt like I learned something new or gained a new perspective on Laplace. Thank you very much.

  • @ivanmazzalay7736
    @ivanmazzalay7736 4 года назад

    This is great... I studied and always forget it, but you gave some elements of the definitions that are the keys to remember the process! Thank you so much!

  • @plamenyankov2182
    @plamenyankov2182 4 года назад +1

    I am a Data Science student and I thank RUclips's algorithm for suggesting your channel to me! For what I've seen because it's mind-blowing and I plan to watch all of your content and learn it by heart! Thank you Professor, you are doing amazing and very important job!

  • @douglasvalerio8880
    @douglasvalerio8880 4 года назад

    I`ve been first introduced to the Laplace Transform and only later to the Fourier Transform, and never before seen this approach, this generalization makes so much more sense
    Thanks for sharing this knowledge

  • @rajeshviky
    @rajeshviky 4 года назад

    Steve Brunton has never failed me even once :) Yet, an another impressive video. Thank you!

  • @MaksymCzech
    @MaksymCzech 4 года назад +13

    Once again, thank you for your lectures!

  • @MojoMonkeyMan67
    @MojoMonkeyMan67 3 года назад

    Brilliant, absolutely brilliant. Im speechless at how amazing this explanation is. Thank you Mr. Brunton

  • @mikefredd3390
    @mikefredd3390 4 года назад +14

    I thought to myself, “self”, how can an
    Integral that looks the same as the FT but has a reduce integration range be a more general function? But lo and behold in the most straight forward and simplified presentation you explained it! Most productive use of my time in quite awhile. Thanks and I’ll watch some more videos.

  • @abhaykela
    @abhaykela 3 года назад +1

    Thank you for sharing this lecture video. I find it as one of the best explanations on Laplace and Fourier transformation.

  • @spitimalamati
    @spitimalamati 4 года назад +1

    I made a T-shirt in the ‘70s with the Laplace Transform on it. In grad school, I loved using the Heaviside Theorem in digital process control. ChemE here.

  • @rene0
    @rene0 4 года назад +10

    Only after watching you write an i with a serif facing the 'wrong' way i was sure you were writing mirror script. Well done.

  • @krinkovakwarfare
    @krinkovakwarfare 4 года назад

    Not only did you broach the topic in a concise yet comprehensive way, you have written all this mirrored for our sake
    Impressive 💪

  • @zwww_ee5235
    @zwww_ee5235 4 месяца назад

    This is the video i came back to through my eng degree for laplace transform refresh, so concise and well explained, thank you Steve!

  • @volkerblock
    @volkerblock 5 месяцев назад

    Hervorragende Darstellung. Vor fast 60 Jahren lernte ich die Laplace Transformation, nun endlich habe ich sie (hoffentlich) verstanden.
    Also, nie aufgeben, irgendwann kommt die Erleuchtung.

  • @mrmister3507
    @mrmister3507 4 месяца назад

    Im starting my master in Robotics in a few months and Im binging all of your videos. You're such a great teacher and you help me to get a true understanding of the theory. Thank you for posting all of these videos. Your students are extremely lucky to have a someone who understands the theory so thoroughly and is also excellent at teaching. That's a combination most professors can only dream of!

  • @_notch
    @_notch 3 года назад +3

    This is a bit above my level, yet i managed to understand most of it! Great summaries of what just happened.

  • @lucasbarroca8919
    @lucasbarroca8919 4 года назад

    Amazing, the Laplace transform was presented to me as magic wand, I've never been told how it works or why it works. This video clarified a lot for me. Thanks

  • @alexanderbeliaev5244
    @alexanderbeliaev5244 Год назад

    Finally, the misery resolved! now I see the logic behind s variable.
    Highly insightful channel, I wish I had these videos 10 years ago...

  • @peepeefrog_
    @peepeefrog_ 4 года назад +2

    Amazing! A million times better than what I had in university in my days

  • @mortezakhoshbin
    @mortezakhoshbin 4 года назад

    you teach differently than others, and i learn new things about the subjects that im sure im so knowlegble on them! you say the basics so beauty

  • @danilomartins1901
    @danilomartins1901 3 года назад

    It’s just so hard o to find an intuitive video on what the Laplace transform actually is, other than just a random integral. You’re a genius! Key takeaway: Laplace is a weighted, one sided Fourier transform.

  • @ailtonteixeira4730
    @ailtonteixeira4730 4 года назад

    I'm glad to find this lecture, now i saw the meaning and beauty.

  • @branarch3878
    @branarch3878 4 года назад +1

    As a person who’s starting a control systems engineering / control theory course next semester - thank you so much!!!

    • @Eigensteve
      @Eigensteve  4 года назад

      Awesome, glad it helped!

  • @Ajaykumaraita
    @Ajaykumaraita 4 года назад +1

    Dear professor you are such a great orator with visualisation.. Thank you. Please keep posting videos for this Laplace series.,

  • @underlecht
    @underlecht 2 года назад

    Best explaination. Thank you. I'll check your other videos.

  • @meetghelani5222
    @meetghelani5222 8 месяцев назад

    Thanks a lot for making this video, highly appreciate your efforts.

  • @noouch
    @noouch 4 года назад

    Love your minimalist setup, always nicer to have a teacher draw and gesticulate.

  • @timurpryadilin8830
    @timurpryadilin8830 4 года назад

    What a wonderful explanation. Thank you!

  • @subhadeepreaditassubhodeep6161
    @subhadeepreaditassubhodeep6161 4 года назад

    Excellent video Steve!

  • @ElMalikHydaspes
    @ElMalikHydaspes 5 месяцев назад

    really a well done explanation of bringing the two concepts together ... 🎉

  • @preetymala3189
    @preetymala3189 4 года назад

    Teaching way and writting technique both are outstanding. It help me a lot. Thank you 😊 SIR

  • @hupa1a
    @hupa1a 3 года назад +1

    Wow! This series is gold!

  • @chimetimepaprika
    @chimetimepaprika 4 года назад

    Nice. I understood FT from this explanation in a way I never have previously.

  • @thomasrad6296
    @thomasrad6296 3 года назад

    This is amazing content. Thank you for this.

  • @IamGilgamesh666
    @IamGilgamesh666 4 года назад

    Excellent presentation, excellent explanation. Excellent work! :-)

  • @nishapawar3368
    @nishapawar3368 2 года назад

    there r so many videos about laplace transform but I loved this one.....#mustwatch

  • @robertbillette4671
    @robertbillette4671 2 года назад

    Wow Steve! Such a good teacher. Wish I had you in my undergrad as a teacher

  • @shameer339
    @shameer339 3 года назад

    Never seen such a great explanation for Laplace transform 🤩🤩🤩

  • @trip_on_earth
    @trip_on_earth 3 года назад

    Thanks a lot for explaining this so clearly.
    Regards from India

  • @edison8309
    @edison8309 4 года назад

    Better explaination ever! Big thanks prof!

  • @jamen1993
    @jamen1993 4 года назад +1

    Thank you for this very insightful explanation.

  • @divyaprakashbiswas8781
    @divyaprakashbiswas8781 2 года назад

    You are a magician!! Thanks a lot for your lectures.

  • @thedarkknight579
    @thedarkknight579 4 года назад +1

    Thank you very much for the lecture Steve.

  • @bassboosted9708
    @bassboosted9708 4 года назад

    Now I finally understand solipsism with that formula. The math behind it opened my eyes.

  • @koninja1986
    @koninja1986 4 года назад

    This was randomly suggested to me by youtube. I don't know why, I never got past calc 2 and don't watch math vids much on youtube anymore. If I was still climbing the calc ladder I'd want Steve as a prof though. The enthusiasm is quite engaging.

  • @felipegabriel9220
    @felipegabriel9220 4 года назад +2

    That lecture was undoubtedly perfect, 100/10!

    • @moustholmes
      @moustholmes 4 года назад +3

      Then why are you giving it 100/3628800? That's not a very high score

    • @felipegabriel9220
      @felipegabriel9220 4 года назад +1

      @@moustholmes i forgot some parenthesis

  • @MysuruBharath
    @MysuruBharath 4 года назад

    Wow!, great intuition Prof. Steve. Thanks.

  • @artificiallychallenged
    @artificiallychallenged 4 года назад +1

    Great lecture. I really enjoy your style of teaching.

  • @AJ-et3vf
    @AJ-et3vf 2 года назад

    Awesome video! Thank you!

  • @muhammedyusufsener1622
    @muhammedyusufsener1622 3 года назад

    Great explanation sir, many thanks!

  • @huankunwang3867
    @huankunwang3867 4 года назад +1

    Very good explaination, thank you so mcuh for all your works.

  • @mitchjust6688
    @mitchjust6688 4 года назад +2

    Really efficient way for video lecturing. Looks nice, I assume it's cheap(er) in time and processing power (for making them) and most importantly, does the job.

  • @syedun42
    @syedun42 4 года назад +1

    Very nice and wonderful lecture

  • @prandtlmayer
    @prandtlmayer 4 года назад +1

    TOP QUALITY and really enjoyable!

  • @federicogottardo4869
    @federicogottardo4869 4 года назад +1

    great explanation, very clear and intuitive

  • @philosoraptor3
    @philosoraptor3 4 года назад +6

    Pretty excellent overview, though it bugs me a bit to call the Laplace transform as a generalized Fourier, as it's more a restriction of the domain of the Fourier transform so that you can enlarge the space of allowed functions. But you were clear enough about this in your actual exposition!

    • @Eigensteve
      @Eigensteve  4 года назад +2

      Thanks, and I appreciate the note.

  • @olivioarmandocordeirojunio8280
    @olivioarmandocordeirojunio8280 3 года назад

    Thanks a lot sir. You help to make the world better.

  • @gabrielh5105
    @gabrielh5105 Год назад

    Thank you professor Brunton

  • @seanmortazyt
    @seanmortazyt 4 года назад +1

    fantastic series!!!

  • @dr.alikhudhair9414
    @dr.alikhudhair9414 2 года назад

    Wonderful explanation .. Thanks a lot professor

  • @maneki9neko
    @maneki9neko 3 года назад

    Steve, you're wonderful.

  • @JoaoVitorBRgomes
    @JoaoVitorBRgomes 4 года назад +2

    Regards from Brazil! Thx

  • @motbus3
    @motbus3 4 года назад +10

    ode ordinary differential equations
    must say, first video i watched in this channel. kept my attention trying to figure out how he writes mirrored

    • @el_witcher
      @el_witcher 4 года назад +2

      He writes just like we do. There's a camera in front of him which does the reversal.

    • @AntoineDennison
      @AntoineDennison 4 года назад +1

      @@el_witcher Really? He's righting from right to left... But he's writing with such ease, I guessed there must be some tech employed.

  • @arturzych138
    @arturzych138 4 года назад

    That was amazing. Thank you

  • @alinematheus3644
    @alinematheus3644 4 года назад +1

    Nice explanation! Thank you, professor!

  • @lunakid12
    @lunakid12 4 года назад +1

    Very nice visuals and lovely structure, great performance, drawing skills, handwriting, even the colors! :)
    One minor advice, if I may: the act of chopping off of the < 0 half could be better communicated (before the "reveal" at ~10:45) by not talking (only; and perhaps a little too lovingly :) ) about the technicalities of H(t), but a) simply stating that we're just going to ignore everything < 0, and b) why that's both necessary and OK to do. Using H for that is trivial, use the time for explaining the rationale (of why the - half is treated differently from the +) instead, so that following it up in the math could feel natural and straightforward.

  • @Amb3rjack
    @Amb3rjack 3 месяца назад

    A fascinating video which I found utterly compelling. I actually almost sort of understood a tiny part of some of it . . . . .

  • @hansweichselbaum2534
    @hansweichselbaum2534 4 года назад

    You really make math exciting! Thanks for sharing.

  • @damirshodiev673
    @damirshodiev673 3 года назад

    You are incredible, man ! thanks

  • @mecrajib
    @mecrajib 8 месяцев назад

    Thanks. you are a great teacher.

  • @shif674
    @shif674 4 года назад +1

    This is amazing! Thank you so much!

  • @isobelwhetstone1525
    @isobelwhetstone1525 2 года назад

    really love this video, u are an amazing teacher

  • @sridharc92
    @sridharc92 4 года назад +5

    "One-sided, Weighted Fourier transform, or a political Fourier transform". Pure Gold! :-D

  • @Laowu1898
    @Laowu1898 2 года назад

    Great explanation

  • @thundrwaffle
    @thundrwaffle 4 года назад

    this is amazing! thank you!

  • @kevinchubb3125
    @kevinchubb3125 3 года назад

    Fantastic stuff

  • @stuartloynes2390
    @stuartloynes2390 4 года назад +1

    Great explanation, thanks.

  • @SRIMANTASANTRA
    @SRIMANTASANTRA 4 года назад +1

    Hi Professor Steve Brunton, Thank you so much.

  • @pratapbhanusolanki6613
    @pratapbhanusolanki6613 3 года назад +9

    Professor Burton, Thank you for the insightful video. I am wondering what happens to the heavy side function H(t) in the inverse Laplace derivation? Can we reconstruct the f(t) for negative t?

  • @guillermovasquez1370
    @guillermovasquez1370 3 года назад +1

    Steve, your information its very useful. Regards from Colombia.

  • @HerChip
    @HerChip 4 года назад +1

    Really nice studio (video/lights etc) setup!

  • @shameer339
    @shameer339 3 года назад

    Great explanation 🤩🤩🤩

  • @RohitVerma-qu6eu
    @RohitVerma-qu6eu 3 года назад

    Good explanation...

  • @alfcnz
    @alfcnz 4 года назад

    WHO ARE YOU??? 😍😍😍
    Just subscribed! Loved absolutely everything!

  • @trinetram707
    @trinetram707 4 года назад +1

    Thanks a lot sir you helped me understand Laplace transform to the depth 😍😍