The BEST explanation of Limits and Continuity!

Поделиться
HTML-код
  • Опубликовано: 6 июл 2010
  • Rohen Shah has been the head of Far From Standard Tutoring's Mathematics Department since 2006.Enjoy!

Комментарии • 527

  • @pepsico815
    @pepsico815 8 лет назад +780

    Why don't professors explain stuff like this? I pay ridiculous tuition just to come home and watch youtube lectures instead.

    • @dinaoom977
      @dinaoom977 8 лет назад +77

      +Austin Texas we pay all this money to get a piece of paper from the university saying we did the work

    • @nw3877
      @nw3877 8 лет назад +21

      They think we know already . LoL

    • @ericmanso966
      @ericmanso966 8 лет назад +31

      Yah and then when we get to higher level course , they look at us and say "u were suppose to learn this in cal 1".....

    • @mr_underscore5320
      @mr_underscore5320 7 лет назад +19

      Nick M Yeah, Only if those stupid professors stopped using those "Technical Terms" and explained us in "Simple Terms" like this guy did, life would be easier.

    • @halloom
      @halloom 7 лет назад +4

      yeah ...... very

  • @russianassassain
    @russianassassain 12 лет назад +30

    I love it when he says: "what does that actually mean," and explains it...soooo much clearer

  • @Elle1577
    @Elle1577 8 лет назад +180

    Omg! He broke down limits and continuity in 7 minutes and I actually understood it! Prior to this, it has taken me weeks trying to understand but to no avail. Wow!

    • @aniketghosh6993
      @aniketghosh6993 7 лет назад +4

      It takes minutes understand regardless of who teaches.It is extremely easy.

    • @Ash17Goswami
      @Ash17Goswami 6 лет назад +4

      Musti lmao

    • @SteakAndMusic
      @SteakAndMusic 5 лет назад +14

      Aniket Ghosh Apparantly it wasnt very easy for you if youre on this video

  • @snehasaha3120
    @snehasaha3120 7 лет назад +62

    i really don't understand why teachers explan things in a boring way instead making it interesting like this guy did...thanks

  • @haleykoontz9870
    @haleykoontz9870 10 лет назад +33

    SO clear! thank you!!! I wish i would have seen this back in January when class started...

  • @drowningflamingo
    @drowningflamingo 10 лет назад +1

    Coming back to this video as I start calc b because I remember how much help this was in part a. Very helpful, thank you!

  • @Celestial-Pickle
    @Celestial-Pickle 5 лет назад +26

    I feel like I have just been hit by a bolt of Noetic lightning. Thank you!

  • @HackPuppet032
    @HackPuppet032 11 лет назад +3

    They say a person really knows a subject when he can explain it clearly, and you sir know this stuff! thanks for your help

  • @shannonoconnor517
    @shannonoconnor517 9 лет назад +2

    I really appreciate you taking the time to make this. Thank you!

  • @SableLoA
    @SableLoA 12 лет назад +2

    This was so helpful. Taking a six week course on calculus 1, it goes so quick, the simplified explanations are much appreciated!

  • @juliemarie773
    @juliemarie773 11 лет назад +4

    I just understood this so much better. you taught me in 7 mins what my teacher failed to do in a week THANKS SO MUCH

  • @nathanielm77
    @nathanielm77 2 года назад +4

    It actually makes sense now

  • @ditya3548
    @ditya3548 2 года назад +2

    What!! This truly is a good explanation. Thank you!

  • @FarFromStandard
    @FarFromStandard  13 лет назад +11

    @blueovaltrucks Thanks!
    g(x) refers to a "function", and we could have used f(x) or j(x) or h(x) instead, and it wouldn't change anything. The "function" is both algebraic and has a graph, so here you can look at the "graph of g(x)", meaning the graph of the function. Hope that helps!

  • @val71999
    @val71999 5 лет назад +4

    i learned more in this video than i did in a month of ap calculus. WHAT.
    instant sub

  • @emperorza5777
    @emperorza5777 3 года назад +2

    You did a fantastic job!! Thank you man, I will definitely be checking out more of your videos!

  • @Mackattack2294
    @Mackattack2294 12 лет назад +2

    Phenomenal explanation. I'm currently teaching myself Calculus using "Calculus for dummies". After reading the chapter on Limits and Continuity, and then viewing this video, I'd say I have a good broad understanding on the topic. Thanks

  • @femiairboy94
    @femiairboy94 12 лет назад

    the title stays true to its meaning ..this actually the best definition of limits i have seen so far, i learned a lot of things and it cleared out my confusion, thank you!!

  • @alexmercer3690
    @alexmercer3690 9 лет назад +5

    it IS the best explanation of limits and continuity. Thanks.

  • @LeonardoTranninAzeredo
    @LeonardoTranninAzeredo 6 лет назад +3

    Why did you stop making videos?
    This is the best video I've seen regarding this subject!
    Thank you for your help!

  • @naamathanna7985
    @naamathanna7985 Год назад +2

    Love your explanation. You made it easy and clear.

  • @kunalpanchal7751
    @kunalpanchal7751 6 лет назад +2

    This guy is awesome.. God level teacher..😀😀 Loved it man,simply exploded my mind by clearing my concept..

  • @dijonstreak
    @dijonstreak 2 года назад +2

    Loved it. !! awesome....another aspect of limits clearly defined and demonstrated,,very thankful for demystifying a hard concept. a5Star job..thanks again !!

  • @Juoa794
    @Juoa794 6 лет назад +1

    Hey, thanks for the great video! Question: can we really affirm that the limit exists whenever the function is continuous, considering the cases when it goes to infinity and cases such as y = sin(1/x) ?

  • @antonioc1545
    @antonioc1545 10 лет назад +20

    a faithful title of the video.

  • @sammiemyboo
    @sammiemyboo 12 лет назад +1

    Extremely good video! FarFromStandard is saving lives one video at a time!

  • @xaviergonzalez5828
    @xaviergonzalez5828 2 года назад +2

    Best explanation ever! Thank you Sir!

  • @terisablair
    @terisablair 12 лет назад +1

    That was a great explanation! I feel I like I am starting to grasp the limit concept! Thanks so much!

  • @jaredjohnson4318
    @jaredjohnson4318 8 лет назад +2

    Thank you for the explanation. I was lost before this video.

  • @MultiRayad
    @MultiRayad 12 лет назад

    first time I actually learned something in calculus...THANX for the help!!

  • @MarelynLovesSmith13
    @MarelynLovesSmith13 8 лет назад +5

    Thank you! This helped me get through my AP Calc hw!

  • @SwaggTasticTran
    @SwaggTasticTran 10 лет назад

    Very VERY much easier to understand then by reading the examples given to you out of my Calculus textbook. The text book just makes everything more complicated and i am unable to have teaching hours because my schedule makes that nearly impossible to meet with my professors. You have my deepest thanks from a football player at University of Texas at Austin for making the first chapters much easier to comprehend.

  • @rittproductions
    @rittproductions 9 лет назад +2

    With thee AP exam tomorrow, and my teacher's blog not helping, this was very useful

  • @blueovaltrucks
    @blueovaltrucks 13 лет назад

    @FarFromStandard Thanks it does. I always have problems with the notation and what it means. One more question. At 3:50 you talk about f(3) = DNE will it ever be undefined?

  • @TheWinonaJohnson
    @TheWinonaJohnson 3 года назад +1

    Thank you for this video! I found it super helpful.

  • @kalebrinehart3456
    @kalebrinehart3456 7 лет назад +1

    This is the best explanation I've ever seen!

  • @redchulvo5400
    @redchulvo5400 8 лет назад +3

    Thanks a lot! Very easy to understand! Cool dude!

  • @frondescenceful
    @frondescenceful 5 лет назад +1

    2:27 How? The way I see it, the limit approaches 2 from both hand-sides :( or do the two kinds of dots denote the two hand-sides?

    • @rohenrshah
      @rohenrshah 5 лет назад +2

      From the left it definitely approaches 2, but from the right - you have to look at where x=2.01 (or some number a bit to the right of X=2). And there we can see that the Y-Value is actually Y=1. Does that make sense? And the limit is what the Y-Value is.

  • @wenwenwang966
    @wenwenwang966 5 лет назад +2

    You are a literal blessing

  • @AliHussain-pd9lq
    @AliHussain-pd9lq 7 лет назад +8

    It's really easy to understand such tough concept of limit by u sir....thanks alot. upload more videos of class BSC mathematics. so that it will be easier for me to understand any concept in the blink of an eye.

  • @andydeleon3450
    @andydeleon3450 6 лет назад +2

    THANK YOU SO MUCH FOR THIS VIDEO!!!! Our teacher talks so fast thats why i cant understand her. Kudos to your teaching!!! ❤️ i understand everything now

  • @anilkumarsharma1205
    @anilkumarsharma1205 4 года назад

    How we find exact length of ovals circumference by limit method up to three decimal point

  • @leinahtan25
    @leinahtan25 11 лет назад +2

    Thanks Kevin G! Good to see the Mathletes paid off!

  • @RealSlopeDude
    @RealSlopeDude 10 лет назад +1

    Great video. We watched it in class and my students caught the slight mistake at the beginning and actually helped engage the class. Thanks.

  • @mehranchoudhury669
    @mehranchoudhury669 6 лет назад

    Quick question: the function f (x)= [x] where [x] denotes the greatest integer function is continous at?

  • @matthewwroblewski8752
    @matthewwroblewski8752 10 лет назад

    Great lecture. Posted this in my calc. discussion forum!

  • @arthurgeorgeokonkwo5510
    @arthurgeorgeokonkwo5510 9 лет назад

    thank you very much, you pretty much explained the whole idea behind continuity.

  • @hl0153
    @hl0153 6 лет назад +1

    THIS DUDE JUST SAVED ME MY SCHOOL DOES NOTHING

  • @fcortesjp
    @fcortesjp 10 лет назад

    well. I have to agree.. this is possibly the best explanation about continuity...
    India rules.. cheers from Bogota, Colombia!!
    Thank you!

  • @muhammadzulfaiz3255
    @muhammadzulfaiz3255 3 года назад +2

    Thank you so much bro. I very appreciate it.

  • @Nick-yn3yt
    @Nick-yn3yt 8 лет назад +3

    Wow What a amazing video HE just explained the limit in just 7 minutes
    I understand it very easily

  • @ronalds271
    @ronalds271 4 года назад +5

    You have a gift from God to teach.

  • @willstewart6393
    @willstewart6393 10 лет назад

    This was extremely helpful! I am going to use your videos for my summer AP Calc. assignment.

  • @FarFromStandard
    @FarFromStandard  13 лет назад +1

    @hameed That's a great question! Whether or not a limit exists ALWAYS depends on the x value - whether or not the function is piecewise. As the video says, for CONTINUOUS functions, the limit at any given x value will be = f(x). Piecewise functions can be continuous; the two that we happened to draw in this video were discontinuous, and so that's why the limits DONT exist ONLY at those specific x values. Limits existed on the continuous PARTS of those piecewise function. Hope that helps!

  • @tombombadil3953
    @tombombadil3953 Год назад +3

    Wow ❤️ you explain so clearly

  • @darondrayton9425
    @darondrayton9425 8 лет назад

    This video was great, keep up the good work...💪💪💪

  • @liliankabelle6943
    @liliankabelle6943 11 лет назад

    Great and precise explanation!!

  • @xsheisthesunx
    @xsheisthesunx 12 лет назад

    This is a great video, keep up the good work! Calculus is terrific.

  • @crewser004
    @crewser004 8 лет назад

    Nice vid dude...thanks for the explanation!

  • @nabhgosal6705
    @nabhgosal6705 6 лет назад +1

    i actually learned something from this lol . good work

  • @TemplatesNstuff
    @TemplatesNstuff 12 лет назад

    thank you so much! im self tutoring myself with my old edition calc book (so id have less difficulty when i get back to school) an i never got what the lim was... now thanks to you, i do! i wish you could be my tutor!

  • @towsifbillah834
    @towsifbillah834 Год назад +1

    Im glad that I come here after 12 years

  • @CuteyAndy
    @CuteyAndy 12 лет назад

    I need a teacher like you.

  • @irenex1790
    @irenex1790 9 лет назад +1

    Very helpful! Thank you so much!

  • @Sincerely.Nature
    @Sincerely.Nature Год назад +2

    Thanks! This helped a lot!

  • @cheryyyim
    @cheryyyim 13 лет назад +1

    wow... this lecture is so much helpful!! :D thank you so much!

  • @GuitarHeroPhenomSux
    @GuitarHeroPhenomSux 9 лет назад +2

    So do you use limits to graph? Because every video I've seen so far already has the graph, and the limits just describe the discontinuity in the graph. You have to be able to graph with them or else they seem kind of pointless.

  • @amirlamzah4633
    @amirlamzah4633 10 лет назад +2

    Thank you.. really appreciate it

  • @stearin1978
    @stearin1978 10 лет назад +1

    1:07 - so suppose if for y=sqrt(x) when x approach 0 the limit exist. what happens with the limit from the left? or you say that there is no limit for sqrt when x ->0?

    • @XecutionStyle
      @XecutionStyle 10 лет назад

      You're right, there's no limit for y=sqrt(x) simply from that the function is not continuous to its left, and therefore cannot have a limit inherently.
      This is only true for R space (with real numbers) however.

  • @blakknwytt
    @blakknwytt 12 лет назад

    @FarFromStandard THANK YOU!!! that cleared every doubt I had... Hoping to see more stuff from u on calculus

  • @khalolyyan7971
    @khalolyyan7971 2 года назад +2

    You’re watching a master at work

  • @guilhermedias2003
    @guilhermedias2003 3 года назад +1

    I am here 1 decade later just to THANK YOU

  • @FarFromStandard
    @FarFromStandard  12 лет назад +1

    @blakknwytt Excellent question! There is no y value for x = 3 because there is a hole. If instead it were a smooth curve, then you're right, the y value at 3 would equal 4. A "hole" literally means there is a gap on the function. So when x = 3, there is no y value at all. But when x = 2.99999, there is a y value, 3.99999 (so basically 4). And when x=3.00001, there is a y value, 4.00001 (basically 4). So the limit at x =3 is 4, but at x =3 there's no exact y value because there is a hole

  • @hameed
    @hameed 13 лет назад

    Are piecewise functions always not limits? Or does it depend on which x value you approach?

  • @user-kd2vv5wp3y
    @user-kd2vv5wp3y 9 лет назад

    Thanks! Very helpful video!

  • @anayeliflores631
    @anayeliflores631 3 года назад +2

    Great video!!!

  • @Money_Man55
    @Money_Man55 3 года назад +2

    ill be honest, the video lives up to its title

  • @aquaristic
    @aquaristic 12 лет назад

    Thank you for the video, its helped me in my battle to understand calculus.

  • @aqualust5016
    @aqualust5016 3 года назад +1

    You mean to tell me I didn’t understand limits because I could not comprehend the concept that:
    1. Limits are not restricted to the point actually existing on the function, only if it can be approached from the left and right sides on that function
    And
    2. A one sided limit has nothing to do with whether the point exists in the function, only if it can be approached on the function from the + or - side
    Fuck. That’s a really dumb reason for me to be failing this class rn. Thank you thank you thank you.

  • @brookemccann9213
    @brookemccann9213 6 лет назад +1

    This helped so much, thank you!!!!!

  • @loveapix
    @loveapix 12 лет назад +2

    OOH MY GOODNESS. THIS HELPS SO MUCH. I LOVE THIS T-T

  • @journey994
    @journey994 11 лет назад +1

    extremely good tutorial! thank you

  • @JohnCarter95
    @JohnCarter95 10 лет назад +3

    Man I wish I'd seen this before my test :(

  • @quilg
    @quilg 3 года назад +7

    I got more information in 7 minutes, than my professor explained me in 3 hours

  • @NguyenTran-py8bk
    @NguyenTran-py8bk 9 лет назад

    Like your style, dude!

  • @IeyFaH94
    @IeyFaH94 11 лет назад

    really help me to undrstand about limit and continuity.. keep up the gud work! :)

  • @blakknwytt
    @blakknwytt 12 лет назад

    Thank u for the tutorial..
    But I'm confused at 3:50.
    Why is there no y value for x=3?
    From the way I see, there's one and it is y=4. How can it be not defined? Pls help to clarify..

  • @lilmisskee245
    @lilmisskee245 12 лет назад

    Hi. So i have a question. My teacher basically confused me with this lesson. He kinda helped me out with it. But my question is does the limit not exist when the point on the graph is not filled in? Or when it is filled in? Because there's a closed point and an open point. Also, the graph (red) had no complete line. Does that mean its discontinuous?

  • @saveUyghurs
    @saveUyghurs 10 лет назад

    Well such people seem to get the point across and make difficult concepts easier to understand so I'm not complaining. Also this sort of method of teaching seems to be used in most places around the world like Japan, for instance, which many can agree on being one of the world's hotspots for new and innovative ideas.

  • @DerpisMaximus
    @DerpisMaximus 10 лет назад

    Didnt he mix up his x and y values for the function g(x)?

  • @LAnonHubbard
    @LAnonHubbard 12 лет назад

    Really enjoyed this video, thanks.

  • @Eldon1522
    @Eldon1522 12 лет назад

    Great video. Clear and understandable. Keep it up.

  • @Megan66666
    @Megan66666 11 лет назад

    right to the point looooved it!

  • @JGR295
    @JGR295 12 лет назад +1

    Thank you very much, this was really helpful.

  • @benwatson6899
    @benwatson6899 4 года назад +3

    Really a great explanation.....

  • @forozanhajian7230
    @forozanhajian7230 12 лет назад

    OMG! THANK YOU SO MUCH! I UNDERSTAND THE LIMITS WONDERFULLY NOW!

  • @AmandaVF1
    @AmandaVF1 7 лет назад

    This.... has helped me understand what I have been trying to figure out for 2 days. Thank. you.

    • @eatshrots
      @eatshrots 7 лет назад

      hey Amanda, I'm also working on this and I'm breaking my head over it. Could we chat somehow and see if you could explain some things to me?

    • @thearcanearcade4923
      @thearcanearcade4923 7 лет назад +1

      Someone's tryin to get laid. Just my 2 cents

    • @DeathscreamerS0S
      @DeathscreamerS0S 7 лет назад

      hahahhahah

  • @abedsaber252
    @abedsaber252 9 лет назад

    it could be a stupid question but on the second example when you did the limit to the f(3) the answer is smaller than 4 and bigger than 4 so it should be undefined ???

  • @ArvinRedlineexpress
    @ArvinRedlineexpress 12 лет назад

    thank you for your informative and extremely helpful lecture.

  • @priyankapendharkar809
    @priyankapendharkar809 10 лет назад

    Great Video, explains Limits throughly.