Lec 8: Level curves; partial derivatives; tangent plane | MIT 18.02 Multivariable Calculus, Fall 07

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  • Опубліковано 20 гру 2024

КОМЕНТАРІ • 146

  • @qbtc
    @qbtc Рік тому +10

    MIT students are smart and know they are being taught by a great professor here. They even applaud when he figures out the blackboard buttons.

  • @narutouzumakix9201
    @narutouzumakix9201 6 років тому +109

    this guy is really good at the 3D drawings

    • @Dawatehaq786
      @Dawatehaq786 4 роки тому

      Trigonometry for AS and A level student ua-cam.com/video/-WzZRx4vVxI/v-deo.html
      Subscribe please

    • @yabannamba7678
      @yabannamba7678 2 роки тому

      Sal Khan is the goat at it but he's good too

  • @kingkongtiger
    @kingkongtiger 12 років тому +251

    MIT professors teach like their students have no background knowledges, and my professors assume I have learnt all shit already in High school

    • @rajaradi802
      @rajaradi802 4 роки тому +2

      @narak leduop not cheap schools but with the worst education system

    • @theblinkingbrownie4654
      @theblinkingbrownie4654 3 роки тому

      @CAVEMAN these bots are surprisingly common especially in stem channels, idk how youtube hasn't noticed yet.

    • @anindyaroy5692
      @anindyaroy5692 2 роки тому +4

      Exactly! And they also jump from one thing to another, and students fail to understand the connection.

    • @marklestergesta7554
      @marklestergesta7554 Рік тому +3

      I feel you

  • @katee808
    @katee808 14 років тому +67

    Jesus Christ he's great at teaching. I now understand the difference between spending $50,000 per year and $10,000 per year. At least they're paying for the tuition so I get to watch these videos for free.

  • @ChristianCentury2000
    @ChristianCentury2000 2 роки тому +15

    Thank you MIT for posting these excellent courses online! The professors are great! The lectures are very well done!

  • @TheCrappyaccount
    @TheCrappyaccount 12 років тому +28

    I love MIT so much for all of these free lectures. I have watched all of physics, this and electronics and circuits.

  • @koenrad
    @koenrad 10 років тому +64

    Much easier to understand now that I have a second person explaining it, what a great professor! Also helps that I can rewind and listen however many times I want :p.

    • @justinyeo1428
      @justinyeo1428 9 років тому +1

      Yup. I also wish I had that professor.

    • @rajaradi802
      @rajaradi802 4 роки тому +1

      Hey you look like Sheldon

  • @83jeffa
    @83jeffa 8 років тому +56

    this guy is a master chalk operator

    • @Dawatehaq786
      @Dawatehaq786 4 роки тому

      Trigonometry for AS and A level student ua-cam.com/video/-WzZRx4vVxI/v-deo.html
      Subscribe please

    • @WilliamTaylor-rr6zw
      @WilliamTaylor-rr6zw 4 роки тому +10

      @@Dawatehaq786 bro shut up

  • @awowoosas
    @awowoosas 8 років тому +26

    All these videos are REALLLY REALLY helpful. Thank you so much, MIT!

  • @ccosm4587
    @ccosm4587 9 років тому +174

    these kids applaud at the strangest things

    • @ddude957
      @ddude957 5 років тому +3

      seems you haven't been to college

    • @slackbabo3858
      @slackbabo3858 5 років тому +22

      @@ddude957 I have and we don't typically applaud the professors

    • @Dawatehaq786
      @Dawatehaq786 4 роки тому +1

      Trigonometry for AS and A level ua-cam.com/video/-WzZRx4vVxI/v-deo.html
      Subscribe please

    • @aashsyed1277
      @aashsyed1277 3 роки тому

      meh im a 9 year old

  • @vishnureddy3977
    @vishnureddy3977 7 років тому +21

    That sine graph is amazing.

  • @SimmySimmy
    @SimmySimmy 5 років тому +20

    One of the reasons I truly like this awesome teacher is he always erase three pieces of blackboards in a row, so I get a chance to skip

  • @syedaliraza3476
    @syedaliraza3476 10 місяців тому +1

    Incredible lecture. Professor Denis Auroux is brilliant. He says his drawings on the board aren’t on point but they are way beyond great.

  • @MarioS-v7b
    @MarioS-v7b Рік тому

    Thanks to MIT for posting this and other math videos. For a math hobbyist these videos are an excellent resource for deepening the knowledge about math. Prof Auroux is really awesome.

  • @MrCavitysChessCorner
    @MrCavitysChessCorner 12 років тому +7

    Phenomenal lecture. Merci beaucoup Professor Auroux!

  • @GNARGNARHEAD
    @GNARGNARHEAD 12 років тому +2

    just in-case anyone was wondering the program he used to generate those parabola is 3D-XplorMath its a really fun program relatively easy to use its even how i generated my display picture :)

    • @alyasker2194
      @alyasker2194 4 роки тому +1

      thnx a lot that was really helpful :)

  • @Filipe8496
    @Filipe8496 14 років тому +2

    This is the best teacher I ever seen. :D

  • @hassanhb9605
    @hassanhb9605 5 років тому +3

    Wow , Wow ! What an amazing explanation ... i felt like Multivariate Calculus is very easy as opposite of usual

  • @imegatrone
    @imegatrone 13 років тому +3

    I Really Like The Video From Your Level curves; partial derivatives; tangent plane approximation

  • @Intellects0
    @Intellects0 28 днів тому

    In our Hindu Culture we treat Teachers far above then God and parents ,. I don't what is name of this professor but his teaching style is very good , ❤

  • @inuyashalivesbaby
    @inuyashalivesbaby 15 років тому +2

    omg.... I know this is stupid, but I have to say it. That movable board is awesome man!!! Go MIT!!!

  • @cristh2311
    @cristh2311 11 років тому +7

    I hope most of you noticed that at 42:21 we were dealing with a "toilet function" ;)

    • @cristh2311
      @cristh2311 8 років тому

      +Mei Yifu I guess someone didn't notice ^^

    • @cristh2311
      @cristh2311 8 років тому

      +Mei Yifu look at how the function is drawn.

    • @cristh2311
      @cristh2311 8 років тому

      +Mei Yifu :D
      this math is old good night stories for me now. I am quite far in my masters now, physics.
      I just couldnt resist commenting about it at the time ^^

    • @cristh2311
      @cristh2311 8 років тому

      +Mei Yifu Yes, in minimum period. I started in Summer Semester 2013, wanna see my grades? I have 3 and half years of them :)

  • @karigucio
    @karigucio 6 років тому +3

    i appreciate this guys 3D drawing skills

  • @venkatesh-ke9ff
    @venkatesh-ke9ff 5 років тому

    your teaching is supper, sir, i never see before such knowledge any professor

  • @sac12389
    @sac12389 11 років тому +5

    and the sidewalk chalk is a great idea. I sit in the second (out of 4) row in my calc 3 class and often can't tell what is being written on the green board. also green boards are a terrible idea.

  • @BareClause
    @BareClause 11 років тому +1

    I'll add this to my watch later list, because I am going to need this when I do Mathematical Methods at UWA next year.

    • @maxsash
      @maxsash 8 років тому +7

      I don't think so. They say they will but they never come back.

    • @BareClause
      @BareClause 5 місяців тому

      @@maxsash I ended up getting a phd bitch

  • @hanzellmo
    @hanzellmo 14 років тому +4

    Spivak's calculus might be to confusing for someone that's starting, but is an awesome book.

  • @nchaconn79
    @nchaconn79 15 років тому

    This is fantastic, very clear explanations. I'm currently taking Calculus 3 in Summer session and I work a full time (40 hours per week) so I have no life... well Calc 3 is my currently life. But I love it

  • @jogaserbia
    @jogaserbia 14 років тому +1

    Awesome videos. Just to let everyne know, you can donate to the open course ware through their website. Also, you can buy books through amazon where MIT gets money. I dontated because I really believe in what they are trying to achieve.

  • @skylarshi1040
    @skylarshi1040 Рік тому +1

    lifesaver and im going to cross register every math class at mit. dont know why my professor assume im smarter than mit students

  • @iyanev
    @iyanev 11 років тому +1

    Why does everybody hates Taylor's Series.They are a live saver and allow you to do so much with a little work.

  • @yhmd777
    @yhmd777 7 років тому

    It's a great video because I can review what I learned this year

  • @marklestergesta7554
    @marklestergesta7554 Рік тому

    Thank you MIT ❤️❤️❤️

  • @mohammadfallahzade2110
    @mohammadfallahzade2110 4 роки тому

    he is a legend
    thanks MIT

  • @josephlee392
    @josephlee392 5 років тому

    At 43:46, what if you chose a different slice in the xz plane? Wouldn't df/dx change because you would get different curves? Or, would all the curves be the same general shape: a parabola, making it not change after all? Thanks.

    • @axxxyxxxx5233
      @axxxyxxxx5233 10 місяців тому

      If u take horizontal slice for z=c the slope will be same for any vertical slice y=k

  • @AdrielGreene
    @AdrielGreene 12 років тому +1

    This was so enlightening!

  • @silentweapon
    @silentweapon 12 років тому

    I feel so fucking lost during my calculus class, and enlightened right away after watching this video. THANKS SO MUCH!

  • @TheJesseWu
    @TheJesseWu 12 років тому +4

    That's some nice handwriting.

  • @ishandave3542
    @ishandave3542 9 років тому +39

    god please name lectures by the topics!!!!

    • @mitocw
      @mitocw  9 років тому +28

      +Ishan Dave Sorry, all of our early videos are titled like this (thousands of them, so the odds of us going back through to change them aren't very high). We changed how we named them starting in 2012. To get a list of topics, see the course on MIT OpenCourseWare at: ocw.mit.edu/18-02F07.

    • @ishandave3542
      @ishandave3542 9 років тому +14

      ***** please there is no need for sorry.I am under great debt from professors from MIT especially professor walter lewin he is my favorite professor of all time he came to my college last year I am sad that I didn't have the chance to meet him.

    • @tripp3468
      @tripp3468 8 років тому +1

      Jesus dude, learn how to spell.

    • @ishandave3542
      @ishandave3542 8 років тому +6

      I edited the comment ,seems fine to me now English is not my first language.

    • @saminzawad4677
      @saminzawad4677 6 років тому +1

      ocw.mit.edu/courses/mathematics/18-02-multivariable-calculus-fall-2007/video-lectures/

  • @suffixable
    @suffixable 9 років тому +6

    such an awesome professor. MI,T could you also upload single variable calculus lectures from him. The one you have, right now, is very confusing.

    • @proghostbusters1627
      @proghostbusters1627 4 роки тому +1

      I can't see what you mean. Prof. Jerison is fricking great.

    • @semjoneschweiler2229
      @semjoneschweiler2229 10 місяців тому

      Strongly disagree, Prof. Jerison did a great job in my opinion.

  • @eafindme
    @eafindme 12 років тому +1

    Arrr, finally I found a key to understand multivariables! My lecturer is just screwing it up! I couldn't understand it even I study by myself. Is worth a waste of 46 minutes on watching this recording!

  • @A3abbadq8
    @A3abbadq8 14 років тому

    Great Lecture!! Helped me a lot.

  • @elamvaluthis7268
    @elamvaluthis7268 2 роки тому

    Basics of vector calculus understands properly.

  • @ZbladeVX
    @ZbladeVX 11 років тому

    Great lecture but itd be cool if the camera movenment is less. He writes reasonably clear and very neat. Great prof too

  • @k0fdark
    @k0fdark 15 років тому

    Thanks this is very helpful, my fav teacher :D

  • @priyanksharma1124
    @priyanksharma1124 6 років тому

    Amazing pedagogy

  • @orangasli2943
    @orangasli2943 2 роки тому

    Ok now we understand x axis when plotting against y axis is actually looking at an object from the top..
    If we add the z axis we can understand that object little bit more

  • @SUBASHCD
    @SUBASHCD 6 років тому

    25:37 Horizontal lines plotted is incorrect?

  • @xinyuli9423
    @xinyuli9423 3 роки тому

    44:42 "Applied math is just physics with different notation" LMAO

  • @datagus
    @datagus 14 років тому

    Well, goodbye to my old calculus teacher!!! Welcome MIT!!!!!!!!!!

  • @benjames2266
    @benjames2266 8 років тому +1

    What graphing program were they using to plot the graphs and contour plots?

    • @mitocw
      @mitocw  8 років тому +2

      The course occasionally relies on a series of specially written interactive math applets ("mathlets"), which let you visualize and experiment with various concepts seen in lecture. See the course on MIT OpenCourseWare for the mathlets and more course materials at ocw.mit.edu/18-02F07.

  • @fermixx
    @fermixx 15 років тому

    im doing distance learning and this guy is saving my ass.
    you cant imagine how hard is to learn calculus 2 from a book ! (or BAD book).
    Its easier for me to hear this french talking in english than to read the book which is written in my mother tongue (spanish), so figure it out !
    thanks dude !

  • @LauroKirsch
    @LauroKirsch 15 років тому

    This helped me a lot!

  • @not_amanullah
    @not_amanullah 5 місяців тому

    This is helpful ❤️🤍

  • @JinxiLiu-e2b
    @JinxiLiu-e2b Місяць тому

    beautiful, ty

  • @LAnonHubbard
    @LAnonHubbard 13 років тому

    Brilliant stuff.

  • @ДімаКрасько-с7м
    @ДімаКрасько-с7м 7 років тому

    Are graphs build in Mapple? Recognized the commands, that were used

  • @dnm25
    @dnm25 15 років тому +2

    41:26 differenti-able :D
    5/5

  • @alinapol
    @alinapol 11 років тому

    great lecture

  • @zyrohnmng
    @zyrohnmng 12 років тому

    You still have to admit...it is cool, common or not...it. is. epic.

  • @not_amanullah
    @not_amanullah 5 місяців тому

    Thanks ❤🤍

  • @kindalindaable
    @kindalindaable 8 років тому

    Thanks sooo much!!

  • @somnathmondal724
    @somnathmondal724 4 роки тому

    If I don't get any point in a small region of topographic map of a mountain, it indicates there is no peak . Is this true ??

  • @TheTranceWhale
    @TheTranceWhale 11 років тому +2

    Is Taylor really that unpopular? (@ 38:20)
    We tend to use 'taylor' as a verb: "Doesn't integrate? Just taylor that shit."

    • @malihareza4754
      @malihareza4754 4 роки тому

      In a previous lecture the whole class gasped when the professor mentions Taylor series. So it's coming from there.

  • @Souliee
    @Souliee 15 років тому +1

    Hes really good at explaining, not like my professor :

  • @inuyashalivesbaby
    @inuyashalivesbaby 13 років тому

    @hellomate639
    Good for you and your university. :)

  • @AndresGomez-pw4fs
    @AndresGomez-pw4fs 4 роки тому

    what's the program he's using for plotting the functions??

  • @iitjee3813
    @iitjee3813 3 роки тому +1

    24:09

  • @hellomate639
    @hellomate639 13 років тому

    @inuyashalivesbaby
    There are boards like that at my school.
    Not that special of a device. Common at large universities.

  • @rebeccalee120
    @rebeccalee120 6 років тому

    This is what we learn in 4 classes of same length

  • @elamvaluthis7268
    @elamvaluthis7268 2 роки тому

    Very nice.

  • @sebastiandiazvivas613
    @sebastiandiazvivas613 3 роки тому

    How I would wish to stay at MIT studying right now

  • @SevenRiderAirForce
    @SevenRiderAirForce 14 років тому

    Math - this is how you do it.
    Oh, and I lol'd at 22:48 when they clapped for him.

  • @sarahdaud
    @sarahdaud 13 років тому

    @inuyashalivesbaby haha i know what you mean! i study at LUMS univerity, Lahore, Pakistan and our science department is inspired by MIT.. we have moving boards here too its so much fun haha :D

  • @fermixx
    @fermixx 15 років тому

    any to recommend me?

  • @aashsyed1277
    @aashsyed1277 3 роки тому

    what is a relation in 3 d?????

  • @hellomate639
    @hellomate639 13 років тому

    @inuyashalivesbaby
    Nah, just saying that my university isn't a great one (it's great by some standards, nobel prize winners have taught here), but it's easy to get into this one.

  • @yuhanwang7122
    @yuhanwang7122 6 років тому +4

    Applied math, which is the same thing as physics but with different notations. Comedy gold.

  • @somebodyhere3160
    @somebodyhere3160 3 роки тому

    9:35

  • @jacklyons5888
    @jacklyons5888 11 місяців тому

    things are now getting exciting :P vectors are bleh

  • @soubhadramaiti1996
    @soubhadramaiti1996 6 років тому +1

    I've watched and really enjoyed the previous lectures, but I have some doubts regarding this lecture.... what I have learnt from the book by J. Coley is totally opposite (interchanged) to what professor explained about Contour plot and Level curves...... Hoping for anyone's kind reply. Thank you.

  • @gautamgopal3517
    @gautamgopal3517 3 роки тому

    Anyone else Bingewatching all these lectures?

  • @UnjojoHalas
    @UnjojoHalas 13 років тому

    lol. i like the way he says temperature. (hope i spelled it correctly)
    he's awesome!

  • @pufifa
    @pufifa 11 років тому +2

    30:40 that thing won't stop staring at me :O

    • @saubaral
      @saubaral 4 роки тому +1

      thats not the graph we need, but the graph we deserve

  • @eldernos
    @eldernos 5 місяців тому

    That dude sure can draw a sin curve.

  • @inuyashalivesbaby
    @inuyashalivesbaby 13 років тому

    @hellomate639
    I made that comment two years ago. Can you imagine me saying that aloud in a MIT classroom?? lmao. That's why I don't go there...
    Believe it or not, I'm not that shallow. Don't judge my character based on that one comment. I'm teacher's assistant for a calculus lab at my university now. I have 23 students. lol.

  • @md.nasimreza3029
    @md.nasimreza3029 10 років тому

    nice

  • @inuyashalivesbaby
    @inuyashalivesbaby 13 років тому

    @hellomate639 in a quite plainly condescending pompous way... That's all.

  • @ashokedas1552
    @ashokedas1552 8 років тому

    good

  • @robertsguitar
    @robertsguitar 14 років тому +1

    Fun fact: This prof started his masters leading to his Ph.D when he was 14
    :|

    • @proghostbusters1627
      @proghostbusters1627 4 роки тому

      And here am I watching this at 14. Man I feel I've fell behind already (I'm semi-joking)

  • @hellomate639
    @hellomate639 13 років тому

    @inuyashalivesbaby
    I'm not judging. Lol.
    I'm just saying quite plainly that those boards aren't a very impressive feature.

  • @themastershadowx
    @themastershadowx 15 років тому

    i think it's obviously seen that he is from france as he pronounce "r" with french pronunciation

  • @faizzzzan
    @faizzzzan 12 років тому

    same

  • @orangasli2943
    @orangasli2943 2 роки тому

    Finally we can understand
    "with respect" means
    "small changes of"
    For example let find the derivative of
    the function f(x)=x+y with respect to x..
    Means when x is moving slowly ..
    What is the gradient between z and x
    i.e
    z/x =?

  • @eligray
    @eligray 14 років тому

    @katee808 Starting next month, I'll be paying the price for you =)

  • @realcirno1750
    @realcirno1750 8 місяців тому

    there was no tangent plane

  • @dongel1001
    @dongel1001 15 років тому

    is he french? his accent is so funny

  • @alperener460
    @alperener460 9 років тому +1

    is there one who know this guy's accent

  • @hellomate639
    @hellomate639 13 років тому

    @inuyashalivesbaby
    Oh, get over academia already. I'm not being condescending and pompous: I think it's cool that you're a T.A.
    You're probably sensitive because you're in academia. I am too.

  • @fermixx
    @fermixx 15 років тому

    oh and by the way, that intro starts to piss me off after watching so many lectures !