Calculus 3 Lecture 13.5: The Chain Rule for Multivariable Functions

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  • čas přidán 15. 03. 2016
  • Calculus 3 Lecture 13.5: The Chain Rule for Multivariable Functions: How to find derivatives of Multivariable Functions involving Parametrics and/or Compositions. Focus will be on deriving the Chain Rule and practice of examples.

Komentáře • 292

  • @charansingh3788
    @charansingh3788 Před 6 lety +601

    can u give some lectures on body building

    • @justadreamerforgood69
      @justadreamerforgood69 Před 4 lety +16

      Having a good body depends on your genetics, diet, sleep, mental state of mind and training.

    • @gruguntermench6097
      @gruguntermench6097 Před 4 lety +1

      I don't think he ever will.

    • @timp5406
      @timp5406 Před 4 lety +25

      JustAdreamer Forgood genetics aren’t a very big factor in obtaining a “good body” it’s mostly consistent training, proper nutrition, and sleep.

    • @abdullahtauqeer5405
      @abdullahtauqeer5405 Před 3 lety

      hahahahaha

    • @anangelsdiaries
      @anangelsdiaries Před rokem +1

      @@justadreamerforgood69 Nah a body builder level body required good genetic, a good body as in athletic just requires constant effort and progressive overload as well as everything else you mentioned.

  • @commentor5573
    @commentor5573 Před 7 lety +415

    Universities forget how important mathematics really are. They cut down the hours of lessons and professors just give you the main ideas and formulas, no proofs no nothing. However proofs and deep understanding are what get you beyond just passing the semester's exams. They develop your cause-result imagination and allow you to really cultivate original thinking. Thank you Professor Leonard for giving us a chance to choose to differ and study deeply and pointfully.

    • @fenerbahceqwe3756
      @fenerbahceqwe3756 Před 5 lety +24

      EXACTLY ! MY SCHOOL EXPLAINS THE BASIC RULES IN LECTURES, SOLVE 1 PROBLEM AND ONTO THE NEXT TOPIC LOL. THEN I HAVE TO TEACH MYSELF EVERYTHING. i am only paying for the degree smh

    • @CHROMIUMHEROmusic
      @CHROMIUMHEROmusic Před 5 lety +6

      @@fenerbahceqwe3756 what degree are you studying?

    • @raknos13
      @raknos13 Před 4 lety +2

      @@CHROMIUMHEROmusic CS

    • @Peter_1986
      @Peter_1986 Před 4 lety +9

      Depends on how the proofs are presented, though.
      Some math books present proofs in as confusing ways as possible and use a lot of overly complicated terminology and symbols even when the students for that course aren't expected to be familiar with that stuff.
      It's almost as if the authors had written those texts as summaries for _other math professors_ or something, even when they were intended for students, and I really hate that.
      Proofs should only be as formal as actually necessary, and keep things in Layman's terms if this is possible without hurting the overall quality of the proofs.
      The author David Morin already managed to do that in his physics book "Introduction To Classical Mechanics", which seriously feels _almost_ like a children's book despite bringing up topics like "Principle Of Stationary Action" and space mechanics - it has the same type of charming enthusiasm as a children's science book, and it is good enough to actually be used as course material in one of my physics classes - and yet does an excellent job at explaining all the concepts.

    • @abm8017
      @abm8017 Před 3 lety +1

      Laurelindo well said

  • @charmendro
    @charmendro Před 4 lety +188

    00:00 - Intro to Chain Rule with respect to t
    44:00 Examples of Chain Rule w/ t
    (Organization Tree Method at 47:00 w/ Ex)
    56:20 More Intermediate Variables
    1:06:00 More Independent Variables
    1:10:00 Examples of "More Independent Variables"

  • @gillianpoe5106
    @gillianpoe5106 Před 4 lety +88

    I'm here in 2020, quarantined with my calc 3 test tomorrow. bless you.

  • @makisxatzimixas2372
    @makisxatzimixas2372 Před 2 měsíci +4

    In case you didn't know, professor, English is not even my native language, yet I'm watching your videos instead of my professor's, because you are so smooth and clear with math. It always make me feel like I can follow without sacrificing any comprehension. If I don't, you make it clear what section of your previous videos I should revise.

  • @altair7676
    @altair7676 Před 7 lety +135

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      @nooreldali7432 Před 6 lety +1

      wow congrats bro

    • @Peter_1986
      @Peter_1986 Před 6 lety +5

      I have a Swedish physics teacher at my university who is about as good as Professor Leonard - his name is Erik Olsson and he works at "Luleå tekniska universitet".
      He is cool, in fact he actually has a speech uploaded here on CZcams where he talks about laser light and waves.

    • @justadreamerforgood69
      @justadreamerforgood69 Před 4 lety

      @@Peter_1986
      Where is the video ?

    • @Peter_1986
      @Peter_1986 Před 4 lety +1

      ​@@justadreamerforgood69
      The video is called "Laserljus och vågegenskaper; en orienterares perspektiv - Erik Olsson, Luleå tekniska universitet".

    • @Peter_1986
      @Peter_1986 Před 4 lety +1

      @@justadreamerforgood69
      Here is the link:
      czcams.com/video/BDwddSrdqaQ/video.html

  • @charlesw6429
    @charlesw6429 Před 8 měsíci +7

    Hearing the laughter at the end of the video made me truly appreciate how valuable of a teacher you are. The manner in which you combine humor and education keeps me engaged and makes my learning experience phenomenal. Because of you, I understand what a good teacher is and how special it is to have one. Thank you so much for uploading your videos. They are incredibly helpful.

  • @amit.verghese
    @amit.verghese Před 8 lety +201

    Could you PLEASE do Differential Equations for us? (Please)

    • @joshbailey872
      @joshbailey872 Před 8 lety +23

      please

    • @KLCII88
      @KLCII88 Před 7 lety +8

      Pretty please with a cherry on top...

    • @froffiek
      @froffiek Před 7 lety +4

      Seriously Professor, need some Diff Eq

    • @EagleLogic
      @EagleLogic Před 7 lety +4

      Please!!!!!

    • @ellifontanilla1520
      @ellifontanilla1520 Před 7 lety +9

      I topped the calculus 3 class by just learning the concept through your videos!! Thank you so much, Sir!! We all need a prof like you. Now, could you please add "differential equations" to your video lectures, please? 🙏

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    @aderitocorreiavaz9064 Před rokem +4

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  • @OpsBoy250
    @OpsBoy250 Před 4 lety +25

    I started loving calculus after watching your videos, Professor Leonard. I've never thought it would be this interesting
    Thank you very much for the fun and interesting videos

  • @awkward_is_my_superpower7609

    Professor, I am currently taking Calculus 3. I am an engineering student at the University of Alaska. I sat through the lecture on this topic today. I have never been so confused. Usually my professor does a pretty good job but today it just didn't click. I was pretty worried about my understanding. I watched this video and now I understand. Thank you for this Professor. :-)

  • @satellite_anomaly
    @satellite_anomaly Před 5 lety +15

    "I watched Leonard on one half speed..." Cracked me up. Understanding this chain rule material is incredibly useful for pretty much any kind of higher physics and diff eqs. Fantastic work.

  • @alis5893
    @alis5893 Před 3 lety +6

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    I LOVE how much he cares if people understand.
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    @jalaicaann5139 Před 4 lety +8

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    @pedrodelfino9493 Před 7 lety +5

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    @opticintrusion6063 Před 8 lety +10

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  • @joliettraveler
    @joliettraveler Před 3 lety +2

    Fantastic explanation. This is so much better than the grad students teaching this at the Enormous State University. They are not there to teach, but to work on their degree.

  • @georgesadler7830
    @georgesadler7830 Před 2 lety +3

    Professor Leonard ,thank you for a powerful analysis of the Chain Rule and Implicit Differentiation for Multivariable Functions in Multivariable Calculus. Although I encountered this material in Calculus one, I fully understand the Chain Rule and implicit Differentiation that is presented in Calculus Three.

  • @isobar5857
    @isobar5857 Před 5 lety +3

    Greatest math' teacher , bar none. These students should relish this education, for they will find none better, anywhere.

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    @Arunscape Před 6 lety +28

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    @zisebri1751 Před 7 měsíci +1

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    Love from Ethiopia

  • @tm67245
    @tm67245 Před 7 lety

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    @rogersp94 Před 7 lety +25

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      @KLCII88 Před 7 lety +3

      I would buy it even if just a simple eBook, for a course I'm not even taking. These videos are invaluable and he should be compensated in some form, other than the measly CZcams check he gets.

    • @markpascual100
      @markpascual100 Před 4 lety +1

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    @Peter_1986 Před rokem +2

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  • @skepat9426
    @skepat9426 Před 8 lety +3

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    @ISSA10x Před 4 lety

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    @MeghanStell Před 3 měsíci

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    @SamuelLee-gw6wr Před 2 lety +2

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    I managed to understand half of the content before the semester starts. That's just amazing.

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    @kryptonyeti2599 Před rokem +2

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    @ThePrincess540 Před 4 lety +1

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    @TheMrEM4N Před 8 lety +66

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      @KLCII88 Před 7 lety +18

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    • @vibhuvikramadityaaa7626
      @vibhuvikramadityaaa7626 Před 4 lety

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      @aidangardner6538 Před 4 lety +1

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    @jasonjacobs8078 Před 5 lety +1

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    @naveednaiemi3979 Před 8 lety +4

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    @shahedmoolji7720 Před 5 měsíci

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    @tauceti8341 Před 8 lety +4

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    22:05 dt -> dx & dy -> dw
    ~42:00 dw as partials of x y

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    @bernardobandeira432 Před 4 lety +2

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    @gjennifer8887 Před 3 lety +1

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    @OverDrive950 Před 19 dny

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    @Wolky324 Před 4 lety +2

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    @cisalzlman Před 2 lety +1

    25 professor "dislike" that are can't reach the level of perfection that is these lectures

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    @tlhomotsemoteme2423 Před 4 lety

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    @murphdogfilms89 Před 3 lety

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    @ajaartauma6450 Před 8 lety +2

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    You are awesome
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  • @anonymoususer4356
    @anonymoususer4356 Před rokem

    Thank you Professor Leonard.

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    @seoexperimentations6933 Před 7 lety +1

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  • @questionman5
    @questionman5 Před 7 lety +7

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    @cdoggy007 Před 3 lety +1

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    @097jupiter Před rokem +1

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    @itschadwarden Před 5 lety +10

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    @fahimahmed3490 Před 5 lety

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    @mdl5021 Před 7 měsíci

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    @justadreamerforgood69 Před 4 lety +1

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    I'm surprised that you have only 429K followers, guess students get scared when they see the length of your videos and don't watch it!!

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    @jonesThePirate_huker Před rokem +2

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    Spoken like a hollywood movie star

  • @karamalnadi9293
    @karamalnadi9293 Před 7 lety +24

    Prof. Leonard, are you going to make Differential Equations videos? Please consider doing so :( You're the best !!!!

    • @Peter_1986
      @Peter_1986 Před 6 lety

      +Karam Alnadi
      If you need material for differential equations, then check out the site Paul's Online Math Notes.
      Great site with very clear explanations and lots of example problems.

  • @pedrolotti45
    @pedrolotti45 Před 2 lety

    Great lecture!

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    @ericsills6484 Před rokem

    I only got through Algebra in school and didn't understand it b/c it wasn't explained worth a crap. I'm actually understanding Calculus from watching this guy!

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    @estebanvivanco4531 Před 9 měsíci

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    @emilprandesilva9702 Před 3 lety

    Thank you very much sir, God bless you

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    @FidaJilani-gf8xy Před 4 měsíci

    I am from Bangladesh. Outstanding class

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    @sriramvarma1118 Před 3 lety

    man we need more professors like you... professor that actually give a shit about ensuring that everyone understands...

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    @abigailpelser3964 Před rokem +2

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  • @lolololxd456
    @lolololxd456 Před 9 měsíci

    THANKYOU SO MUCHFDNFJDSJAAAAA this it didnt make any sense to me before it was just a rule and now i understand where it comes from!!!! this is amazing thank u

  • @gcdebate3226
    @gcdebate3226 Před 4 lety

    Great Stuff.

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    @ahmedmohamed-yx1ln Před 4 lety

    dependent or independent that won't change the fact that you are a great professor

  • @Chicagoan452
    @Chicagoan452 Před 2 lety

    The God of Mathematics, ladies and gentlemen!

  • @jacobsmusic4186
    @jacobsmusic4186 Před 3 lety

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    thank you Prof!

  • @bloodyadaku
    @bloodyadaku Před 7 lety +25

    @1:28:20 It should be dx/du, since there's only one independent variable that relates to x. Similarly, dy/dv. These shouldn't be partials.

  • @GungnirStrike
    @GungnirStrike Před 4 lety

    I wouldn't be able to make any sense out of this topic without your lectures, the textbook SUCKS. thank you!

  • @cmulation5460
    @cmulation5460 Před 5 lety

    Life saviour!

  • @VNFilmography
    @VNFilmography Před 3 měsíci

    Thank you sir❤

  • @josepio3955
    @josepio3955 Před 6 lety

    EXCELLENT!!!!

  • @abdullahadnan4660
    @abdullahadnan4660 Před rokem

    I love you professor leonard :)

  • @ButtsMcCracken
    @ButtsMcCracken Před 5 lety

    I've never heard an eraser make so much noise on a whiteboard.
    Also, amazing lectures. You're a life saver. A really, really buff life saver.

    • @ProfessorLeonard
      @ProfessorLeonard  Před 5 lety +7

      That's because when I erase something.... I MEAN IT!!! LOL
      Thanks for watching :)

  • @THEGUYWHOSHOOTSPPL
    @THEGUYWHOSHOOTSPPL Před 4 lety

    Thanks alot.

  • @ahmetkeremodabas3759
    @ahmetkeremodabas3759 Před rokem

    what a video man

  • @mattslatt4025
    @mattslatt4025 Před 5 lety

    Professor Leonard must be the must paranoid mathematician alive, judging by how often he asks if people are following him...
    Just playing, love your work man

  • @adbasdbasdkasdja7246
    @adbasdbasdkasdja7246 Před 7 lety

    great thanks

  • @ion4497
    @ion4497 Před 4 lety

    Thanks

  • @marvelstorian
    @marvelstorian Před 2 lety +1

    Just took my final exam for Calculus II (which has many Calc III concepts like directional derivatives and triple integrals) and I felt so good and confident walking out of there thanks to your videos. I went from a 47% on the first exam, to 89% on the second, ending with a 92% on the last exam before the final. I used to try and read the textbook and pay attention in class but was not really absorbing any of the content. I stumbled through the homework and was lost on the smaller quizzes in the beginning. Your videos and explanations helped me actually understand what was going on rather than copy a formula down with no idea where it came from. Thank you so much! Legit the only reason I passed Calc *all the way from a D to a B+ going into the final

  • @samimahassan1716
    @samimahassan1716 Před 5 lety

    thank you sir

  • @barryhughes9764
    @barryhughes9764 Před 7 lety +2

    Hi professor, your videos are very much appreciated and inspirational. Even when you don't the right feedback from your pupils you don't despair and are willing to go over the topic again until it becomes clear to them, patience personified. May I just ask you a question?. At approx. 1:14:57 on this video the partial w with respect to u or v on the left hand side of the equation is set equal to the expressions on the right hand side, however shouldn't the partial Dx/Dx and Dy/Dy [ I use " D " here to mean partial ] cancel out giving the right hand side of the equations twice the value of the left hand sides of the expression. This I don't understand......any clarification would be gratefully appreciated. Thanks , and kindest regards .Barry.

  • @sadafjahan6713
    @sadafjahan6713 Před 4 lety

    thanks

  • @johnholme783
    @johnholme783 Před rokem

    The number of components of the derivative of a specific independent value is equal to the number of intermediate variables that are composed of that independent variable! I think that sums it up!

  • @icee562
    @icee562 Před 4 lety +2

    Too bad you don't even get to see these concepts shine when you first learn them.
    This is so useful for linear approximations of nonlinear systems of differential eqns.

  • @luffydmonkey9400
    @luffydmonkey9400 Před 3 lety +2

    51:47 the "dependent variable" header is supposed to be the "independent".

    • @codewithhamad4512
      @codewithhamad4512 Před 3 lety

      I have noticed this as well haha but its ok professor havent seen it

  • @pedrodelfino9493
    @pedrodelfino9493 Před 7 lety

    @Professor Leonard, just a suggestion. At 1:50:19 you start talking about implicit differentiation for multivariable calculus. I think you should mention that on the the title of the video.

  • @TheFuenffinger
    @TheFuenffinger Před 7 lety

    49:38 "tryna be cool, shouldn't have been a math teacher" gave me a sensible chuckle.

  • @andersonmn9675
    @andersonmn9675 Před 3 lety

    this one was fun. :-)

  • @johnholme783
    @johnholme783 Před rokem

    It’s not a rigorous proof, but it makes good intuitive sense!

  • @AnshishRay
    @AnshishRay Před 2 lety

    1:37:40 We watch you professor! 💚

  • @henrywilliams3919
    @henrywilliams3919 Před 6 lety

    PLEASE do linear algebra!