14.4: Tangent Planes and Linear Approximations (1/2)

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  • Опубліковано 23 вер 2019
  • Objectives:
    7. Define the total differential.
    8. Use the total differential to approximate the change in a function.

КОМЕНТАРІ • 43

  • @EugeneZ.
    @EugeneZ. 4 роки тому +39

    Don't listen to your students, your drawings are awesome!

  • @kr1tical41
    @kr1tical41 3 роки тому +32

    So much better than my mathematics lecturers at my university. Thank you so much for these videos!

  • @tahhanu
    @tahhanu Рік тому +4

    I love how my laziness answered your question "YES" when you asked if you should stop and continue tomorrow. (Thanks for the videos, life savior)

  • @liamstanzmusic
    @liamstanzmusic 3 роки тому +12

    Thank you so much for these videos. You are single handedly getting me through second year Advanced Calculus.

  • @hussain7md166
    @hussain7md166 3 роки тому +3

    Those lectures help me a lot, I'm thankful to you :)

  • @dennischen7119
    @dennischen7119 3 роки тому +2

    too good, cannot say enough how good it is

  • @tangerinesandvibes
    @tangerinesandvibes 3 роки тому +1

    thank you so much for these videos! your lectures are much easier for me to understand than my own professor's

  • @ikennao5299
    @ikennao5299 3 роки тому

    alexandra, you got the neatest engineering writing in the club!, it flows naturally , looks like journal in code

  • @johnngo341
    @johnngo341 Рік тому +3

    thank you for spending the time to derive everything and going through examples!

  • @MeetPatel-eh3ni
    @MeetPatel-eh3ni 4 роки тому +25

    Thank you for the lectures! They are so thorough! What pens do you use? I get satisfaction from the little things in life! :D

    • @alexandraniedden5337
      @alexandraniedden5337  4 роки тому +10

      I use felt-tipped pens. It's certainly difficult to find a good pen :)

  • @AugustoActis
    @AugustoActis 3 місяці тому

    Thank you very much, grettings from Argentina

  • @Quintessential.96
    @Quintessential.96 Рік тому

    A life saver you are ma'am❤

  • @spdas5942
    @spdas5942 9 місяців тому +1

    The best on this topic. ❤ U mam. Thanks from India.

  • @butx1555
    @butx1555 2 роки тому

    You are the best teacher!!

  • @natevegh4602
    @natevegh4602 8 місяців тому

    Very concise and straightforward. Thank you!

  • @elshazlio
    @elshazlio 2 роки тому +1

    Great review. Strange how there are almost never any questions

  • @sodiakabiodun9379
    @sodiakabiodun9379 4 роки тому

    Thanks for sharing 😍

  • @james_dinham
    @james_dinham 4 місяці тому

    I've watched all your videos, You're the reason i'm passing my shit

  • @theodoremercutio1600
    @theodoremercutio1600 Рік тому +1

    Hey, not sure if you're still responding to comments but I'm really wondering what the point of linearization is. Go through the hassle of finding the linearization, only to plug it in and get an approximate value for Z? Why not just plug our point in the original function and get the precise value? Amazing video by the way!

  • @calebaniagyei6584
    @calebaniagyei6584 2 роки тому

    What textbook were you using in the video please?

  • @mohammedalmahruqi294
    @mohammedalmahruqi294 3 роки тому +1

    I think it is x=a plus delta x Not at delta x
    Anyway great explanation on the materials

  • @user-sv9lv5xy2e
    @user-sv9lv5xy2e Рік тому

    Thank you so much for these amazing videos, they are so clear and I am able to understand everything. Just wondering, what is the textbook called that you are using?

  • @levisloftus
    @levisloftus 2 роки тому

    allahım seni karsıma cıkarandan razı olsun

  • @brendanbuckner2561
    @brendanbuckner2561 3 роки тому +1

    Awesome stuff, is there a video covering 14.3?

    • @alexandraniedden5337
      @alexandraniedden5337  3 роки тому

      No, I didn't record that lesson. Sorry!

    • @jdz3742
      @jdz3742 2 роки тому +1

      @@alexandraniedden5337 If you end up covering that lesson this year, could you record and post that by any chance? Your videos are so well explained and are helping a lot of us students understand!

    • @lanceward7048
      @lanceward7048 Рік тому +1

      @@jdz3742 14.3 is recorded and posted now!

  • @uzair3690
    @uzair3690 3 роки тому +1

    which book are you using?

  • @firdausazman374
    @firdausazman374 3 роки тому

    thank you so much geng

  • @tanmaysharma1850
    @tanmaysharma1850 2 роки тому

    Which book is she referring to? Anyone?

  • @mokwenamoroaswi4652
    @mokwenamoroaswi4652 4 роки тому

    For example 1 aren't we supposed to add 3 instead of subtracting it?

    • @arshedjunaid4149
      @arshedjunaid4149 4 роки тому +2

      expand the brackets and you'll get -4-2(+3 when you take it to the other side) which is = -3

  • @khalidmuhamood4821
    @khalidmuhamood4821 3 роки тому +1

    Video 14.3 no available please

  • @abodeabode6949
    @abodeabode6949 3 роки тому +1

    why my exam is much much harder than ur examples :(

    • @buellerferris
      @buellerferris 3 роки тому +5

      Because you haven't done practice problems with harder examples.

  • @uzair3690
    @uzair3690 3 роки тому

    which book are you using?

    • @isisyasmim639
      @isisyasmim639 3 роки тому

      Multivariable Calculus by James Stewart