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Where a function is not differentiable | Taking derivatives | Differential Calculus | Khan Academy

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  • čas přidán 21. 08. 2013
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Komentáře • 49

  • @RyanThompsonrthomp
    @RyanThompsonrthomp Před 8 lety +36

    This visualization saved me some serious time. Thank you

  • @Anish-IITP
    @Anish-IITP Před 3 lety +3

    I got to know something which my teacher didn't taught. Thank u sir

  • @lakestones9266
    @lakestones9266 Před 6 lety +7

    Omg why so much hate on a math video, last less than 4 min

  • @spxtfxre1
    @spxtfxre1 Před 3 lety +2

    Thank you very much. This video helped a lot!!!

  • @xstanstanstan
    @xstanstanstan Před 10 lety +31

    I tried, but I can't even watch Khan Academy for three minutes because the way he constantly repeats himself drives me absolutely nuts.

  • @monicakinga2803
    @monicakinga2803 Před 7 lety +4

    Thank you that super helped me!!! :)

  • @Lexyvil
    @Lexyvil Před 7 lety +3

    Very useful! Thank you!

  • @D_Analyst007
    @D_Analyst007 Před 2 měsíci

    Relu is non diffrentiable wali post se ayya hu! Thanks mahesh brah

  • @sdghhf
    @sdghhf Před 6 lety +2

    Thank you !

  • @SanvelloSerapiega
    @SanvelloSerapiega Před 11 lety +1

    such a vivid desciption

  • @ashikashrivas4454
    @ashikashrivas4454 Před 4 lety +1

    Thank you

  • @deekshaverma1591
    @deekshaverma1591 Před 2 měsíci

    but in the definition (f(x+h) - f(x))/ h we will approach it only from one side right. Then How the derivativecan not be defined????

  • @void8221
    @void8221 Před 3 lety +1

    Thx

  • @rjkhaj
    @rjkhaj Před 2 měsíci

    Thnk uh

  • @someonetoogoodforyou
    @someonetoogoodforyou Před 11 lety +1

    Can a non continuous curve still be differentiable? For example if you had a line of gradient 2 that jumped but still continued to have the same gradient after the jump, would that still be differentiable?

    • @AlexanderBollbach
      @AlexanderBollbach Před 7 lety +1

      i think i get what you are saying. by jump perhaps you mean gap? If you are visualizing a gap than this scenario isn't identical to what was present in the video. In the video, Sal concludes that the slope on one side is radically different from the other. but what is the slope of a non-existence point?

    • @punaydang2948
      @punaydang2948 Před 4 lety +6

      for differentiabilty to exist it is important that function should be continuous

  • @triforceforger
    @triforceforger Před 11 lety

    but how would it be a continuos line if it jumped? part of it would be vertical, so one x value would equal multiple y values. Making it not differentiable

  • @YusufYusuf-pr7zj
    @YusufYusuf-pr7zj Před 2 lety

    Can we say it is derivative on the endpoints?

  • @axe863
    @axe863 Před 11 lety +1

    Weierstrass function==> continuous and non-differentiable everywhere.
    Brownian Motion ==> continuous and non-differentiable everywhere.

  • @ilkeuyankerstudent5347

    thx

  • @blablabla8605
    @blablabla8605 Před 5 lety +1

    🏆

  • @someonetoogoodforyou
    @someonetoogoodforyou Před 11 lety

    nuh uh, what if you had the line y = 2x for -5

  • @triforceforger
    @triforceforger Před 11 lety

    No, a line can't just "jump". what you just typed out would be two separate lines. If you tried to view them as one line then the problem would be at x=0 because y=0 AND y=34. so unless you connected them (making an undefined slope.. a vertical line). then they must be viewed as they are graphed. Two separate lines

  • @stephaniejoobern1001
    @stephaniejoobern1001 Před 7 lety

    hi

  • @vinaykumarhs5509
    @vinaykumarhs5509 Před 2 lety

    I Have a Question (more like confirming),.......so, there are situation where c can be continuous but not differentiate, Then the only Situation I can Guess for Differentiable is to be true is ALWAYS a straight line(a Linear Function, No other Polynomial function), .........or do we have another example

    • @nicholocadongonan1074
      @nicholocadongonan1074 Před 2 lety

      cubics and quadratics are continuous and differentiable too, by induction all polynomials are

  • @auroraaa21
    @auroraaa21 Před 8 lety +5

    Couldn't finish his video. Please refrain from repeating multiple times

  • @bamtakethat
    @bamtakethat Před 10 lety +27

    Your videos would be half as long if you didn't unnecessarily repeat everything you say 3 or 4 times.

    • @tmac13in34
      @tmac13in34 Před 9 lety +22

      don't hate, appreciate

    • @thekkl
      @thekkl Před 9 lety +11

      If you ever teach you'll learn that you often need to repeat the same thing more than once for people to pick up on what you say. If you want someone who teaches calculus in a more straightforward way try PatrickJMT.

    • @armbarsandbarchords
      @armbarsandbarchords Před 9 lety +1

      bamtakethat at least he posts good videos, specific to the topics. Pre cal was easy as shit to find videos for. Calculus is not as black and white. Great reference.... pretty much every engineering (with internet access) student alive today appreciates your videos.

    • @SmashBrosBrawl
      @SmashBrosBrawl Před 9 lety +11

      +bamtakethat
      and you wouldn't be watching his video if you weren't dumb and needed someone to re-teach the material to you.

    • @akilakavisinghe7189
      @akilakavisinghe7189 Před 7 lety +4

      He does that to make the information stay in your head.

  • @comandernehal8567
    @comandernehal8567 Před 7 lety

    I think it will be better if the screen is more colorful or white rather than full black.
    Its hard to watch