How to change the order of a triple integral

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  • Опубліковано 25 вер 2024
  • How to change the order of the differentials of a triple integral?
    Animation and the rest of the answer by Fematika, • Changing the Order of ... ,
    For more calculus tutorials, please see ‪@bprpcalculusbasics‬

КОМЕНТАРІ • 125

  • @blackpenredpen
    @blackpenredpen  6 років тому +37

    For the rest of the answer, including animations, see ua-cam.com/video/P9ZF3pZJyko/v-deo.html

    • @atulit
      @atulit 6 років тому

      blackpenredpen graph of y = x^2 is wrong

    • @yaleng4597
      @yaleng4597 6 років тому

      can you please do the derivative of functions invovling lxl ? (such as lxl, sqrt(lxl) lx±2l, l3xl and lx/7l etc.) because i am bad at differentiating functions which invovle lxl.

  • @wkingston1248
    @wkingston1248 6 років тому +560

    Moral of the story, hire art majors to help draw 3 dimensional graphs because that's the hardest part of the solution.

    • @ScholarStream_25
      @ScholarStream_25 4 роки тому +5

      😂 I swear bro

    • @divisix024
      @divisix024 4 роки тому +8

      Me and my classmates in calculus admiring the professor’s hand drawn graphs...

    • @felikavalencia1933
      @felikavalencia1933 4 роки тому +4

      @@divisix024 while my prof is just shitting and didnt even draw anything!

    • @D00000T
      @D00000T Рік тому +3

      or build it in minecraft like one of my classmates once did

    • @bahuliyamanyapu7664
      @bahuliyamanyapu7664 6 місяців тому

      @@ScholarStream_25 haha

  • @duncanw9901
    @duncanw9901 6 років тому +126

    Loving the cal 3 content! I haven't even taken the class, but I understand the things due to your explanation. A well-earned subscription.

  • @ScholarStream_25
    @ScholarStream_25 4 роки тому +4

    I have never changed the order of a triple integral , yet I did that for double integral. Now after watching the video it feels really easy for triple integral

  • @SpencerRemy
    @SpencerRemy 3 роки тому +10

    I would pay any amount of extra tuition if I could get quality lessons like this from my professors.

  • @GreeeenT
    @GreeeenT 6 років тому +3

    how do you always post things that are relevant to my classes. seriously, everytime I learn something new you post a video about it as if you're in my class haha

  • @marcioamaral7511
    @marcioamaral7511 6 років тому +3

    I love the way that the integral signs are in different colors!

  • @bernfernandes4380
    @bernfernandes4380 5 років тому +6

    Amazing content! I feel much more confident for my exam. Thanks x

  • @hafizmasum9600
    @hafizmasum9600 6 років тому +10

    Upload more on triple integrals bro

  • @p1eboi804
    @p1eboi804 3 роки тому

    Thank goodness people like you exist

  • @stephanm.tjaden3887
    @stephanm.tjaden3887 5 років тому +6

    This was very helpful! Thank you.

  • @marinamaged962
    @marinamaged962 Рік тому +6

    why do they make us do this

  • @AkashdeepSingh-qq5fw
    @AkashdeepSingh-qq5fw 3 роки тому +3

    x = 1,-1 and this matches with ends of parabola bounds for dy
    but if something like x=5,-5 what will happen? does this mean that the integral is invalid because it does not make any sense?

  • @MrCigarro50
    @MrCigarro50 6 років тому

    Thank you very very much. This type of tool is much more common than one thinks.

  • @nullplan01
    @nullplan01 6 років тому +4

    Oof, you can ask questions this late in the day... OK, so the outermost integral was in terms of z, which goes from 0 to 1 (we already had that). Now x... is going to be funny. Which values can x take in dependence only on z, such that any value for y inside our cheese-wedge exists? If z=0, then all x from -1 to 1 are possible, but the higher up we get the narrower that interval becomes. Until z = 1, when x = 0 is the only choice. What is causing the limitation? If z > 0 and x = -1, then y = x² = 1 would select a point with z > 1 - y. And we can't have that. So x can only be chosen such that x² < 1 - z. So we have our limits. x goes from -sqrt(1-z) to sqrt(1-z). Now we can pick y between x² and 1.
    So the final answer is z=0..1, x=-sqrt(1-z)..sqrt(1-z), and y=x²..1.

    • @andresxj1
      @andresxj1 6 років тому +1

      nullplan01 Wow, that was amazing. I'm really looking forward to learning this stuff!

  • @fasebingterfe6354
    @fasebingterfe6354 Рік тому +1

    Majoring in math is the most hardcore way to learn how to draw that I've ever seen

  • @教主蓝教-n9w
    @教主蓝教-n9w 6 років тому

    Great work, Bprp, you have a great video up again.

  • @АлексейБеляев-х1т
    @АлексейБеляев-х1т 6 років тому +27

    Three times two times one that's six quick maths

  • @Prxwler
    @Prxwler 3 роки тому +1

    Great explanation! I could understand it despite haven't even finished my calc 1 course lol

  • @sajalgorai2570
    @sajalgorai2570 4 роки тому +2

    wow... love from india

  • @DawgFL
    @DawgFL 4 роки тому +5

    If a question asks to solve a triple integral by changing the order in an appropriate way. How do I know which ones to change? For example if it is dxdydz, how do I know if I should change them all, or just 2 of them, etc?

    • @kylejohnson8447
      @kylejohnson8447 3 роки тому

      Usially it is very hard or impossible to integrate in anyway besides the correct order in those problems

  • @mikemichalarias8013
    @mikemichalarias8013 2 роки тому +1

    My man taught me math and then flexed a toblerone on me. I feel ashamed and greatful.
    Thank u.

  • @maymirror
    @maymirror 4 роки тому

    Your explanation is jst of next level🤘 ,u make things easier to get inside the head.

  • @briandutch7403
    @briandutch7403 5 років тому +3

    very helpful! Thank you

  • @malaygangwar5956
    @malaygangwar5956 Рік тому

    Thank u sir u changed my life

  • @rybaplcaki7267
    @rybaplcaki7267 6 років тому +3

    Please more multiverible calx!

  • @sajidrizvi4665
    @sajidrizvi4665 6 років тому

    Wow
    You're so good at it. The way you explain is beautiful m

  • @jadaayebae
    @jadaayebae 4 роки тому +1

    so helpful! and I love your smile!

  • @retired5548
    @retired5548 6 років тому +3

    this should be called something like "Shuffling a pack of integrals"

  • @ゴテンクス-q8q
    @ゴテンクス-q8q 6 років тому +3

    Thank you!!!! This is just what I needed

  • @pberuto
    @pberuto Рік тому

    Great content man

  • @Saunderabovo
    @Saunderabovo 6 років тому +4

    0:43 Ok! Ok!

  • @nvapisces7011
    @nvapisces7011 10 місяців тому +1

    Me who can't draw to visualise: imma just use inequalities!

  • @johnnychen4052
    @johnnychen4052 2 роки тому +1

    讲的太好了!

  • @davidbrisbane7206
    @davidbrisbane7206 2 роки тому

    I was able to visualise the triple integral volume using GeoGebra. However, I found that looking back along the x-axis, that this two dimensional view of the of the integral volume looks like a triangle bounded by the line z = 1 - y, x = 0 and y = 0.
    So, it doesn't quite match the shape blackpenredpen drew on the right of the board. I.e. no parabola shape sloping downwards.

  • @tysonmotivationalvideos8220
    @tysonmotivationalvideos8220 4 роки тому +4

    1 pac , 2 pac, 3 pac, 4/ 4 pac, 3 pac, 2 pac, 1/ You're pac, he's pac, no pacs, none"

  • @JoaoPedro-kq7dj
    @JoaoPedro-kq7dj 3 дні тому

    Mu ajudou MUITOOO!

  • @sethhoisington2494
    @sethhoisington2494 6 років тому +13

    Toblerone

  • @danajabaji4974
    @danajabaji4974 2 роки тому

    that was awesome!

  • @sanchitkumar7357
    @sanchitkumar7357 4 роки тому

    I am trying to calculate this problem where it says to calculate the Triple Integral ∫∫∫(3xy+2z^2) dV where the region R is given by $0

  • @Kgadi04
    @Kgadi04 6 років тому

    Please do an example where you have to find the bounds first

  • @kevincaotong
    @kevincaotong 6 років тому

    Can you make a video on the surface integral please? I'm having a little trouble with it, especially since I learned it the parametric way on Khan Academy, and I'm not too sure with the non-parametric way.

  • @fawfuls
    @fawfuls 4 роки тому

    Thank you!

  • @VaehVay01
    @VaehVay01 5 місяців тому

    Thank you sm

  • @Koisheep
    @Koisheep 6 років тому

    Back in the day (two years ago) I was proficient at exchanging the dx, dy and dz, but right now I couldn't even begin. Kids, practice multiple integrals as well as 1D integrals

  • @imankhalili7629
    @imankhalili7629 3 роки тому

    thanks dude . it was helpful :)

  • @peanutbuttersmooth4849
    @peanutbuttersmooth4849 6 років тому

    in fact its a very good art lesson

  • @TheLychie
    @TheLychie 6 років тому +2

    LOL you make me laugh. Thanks man!

  • @Hussain-px3fc
    @Hussain-px3fc 4 роки тому

    I saw a question about changing the order but I didn’t know why the limits of integration changed, even if the order was the same

  • @BlurredLinez
    @BlurredLinez 3 роки тому

    The Toblerone at the end lol

  • @nvidyyaa8919
    @nvidyyaa8919 3 роки тому

    Thanks for you video. You really save me for my midterm. xiexie

  • @silverwarrior1194
    @silverwarrior1194 6 років тому

    THANK YOU

  • @shubrajchuckowree5670
    @shubrajchuckowree5670 24 дні тому

    Isn't y from x squared to 1-z

  • @yaleng4597
    @yaleng4597 6 років тому +1

    Amazing video! Can you please do the derivative of functions invovling lxl ? (such as lxl, sqrt(lxl) lx±2l, l3xl and lx/7l etc.) Because i am bad at differentiating functions which invovle lxl. Btw, #Roadto100K d/dK=100 XD

  • @alyssagoins7485
    @alyssagoins7485 3 роки тому

    Wouldn't it be easier to evaluate in cylindrical coordinates?

  • @zacksbees329
    @zacksbees329 6 років тому

    if only my math teacher could draw as well as you

  • @commissargamer
    @commissargamer Рік тому

    Watching at 2x before one night of exams!

  • @穿第
    @穿第 6 років тому

    i have a question which is not related to the video. I want to make $100 and i make $1/hour. however, whenever I have$50, I will spend $50 to invest so that the rate of making money will double. as a result, no matter how many times I invest, the time I take to make $100 will never change. but, if I always spend $50 whenever i have $50, I can never make more than $50. it is a paradox. what is going on and can anyone answer me.

  • @TuanTruong-dg7xq
    @TuanTruong-dg7xq 4 місяці тому

    thats crazy black pen

  • @abofahad61
    @abofahad61 6 років тому +4

    This is application for find the volume

    • @richardaversa7128
      @richardaversa7128 6 років тому +4

      Only if f(x,y,z)=1. Otherwise a triple integral corresponds are finding a 4d "hypervolume".

    • @sergiokorochinsky49
      @sergiokorochinsky49 6 років тому +2

      Richard Aversa, the interpretation of the integral does not depend on f being = to 1 or different than 1.
      If f(x,y,z) is a density [g/cm^3], multiplying by dxdydz [cm^3] and integrating you obtain the total mass [g]. In the particular case of f=1, then the volume happens to have the same numerical value as the mass.
      If you want to calculate a 3D volume directly, you should simply integrate z(x,y)dxdy (all of them in cm).

    • @richardaversa7128
      @richardaversa7128 6 років тому +3

      Sergio Korochinsky Good point, in the case of the function representing a density. My comment was in reference to the case of the function representing a surface. When the function represents a surface, the double integral gives the volume under the surface (and the triple integral gives a higher dimensional analog of volume associated with the surface).
      tutorial.math.lamar.edu/Classes/CalcIII/Area_Volume.aspx

    • @sergiokorochinsky49
      @sergiokorochinsky49 6 років тому +1

      The function does not represent a surface, the function IS a surface, and it represents a height. That's the reason z(x,y)dxdy has units of volume. Differentiating and integrating (from 0 to z), the double integral of z*dxdy becomes the triple integral of dxdydz, so... you were right! The number 1 is a special case. As soon as the integrand is different than 1, you are actually calculating a hypervolumen in 4D. ...Of course, you can continue doing the same with n variables, integrating all of them from 0 to 1, and obtain n-dimensional hypervolumes (all of them with the same numerical value)... so... I guess f(x,y,z)=1 is not so special after all. :-)

  • @snipergranola6359
    @snipergranola6359 4 роки тому

    Make videos on surface and itegral

  • @TNTErick
    @TNTErick 2 роки тому

    0:42 Suddenly, ninjutsu.

  • @xy7914
    @xy7914 5 років тому

    Is it 3D or 4D ?
    Because we have f(x,y,z) so actually we have w = f(x,y,z) so we have 4 variables ...
    Anyone can answer me ?

  • @HD-dw7zk
    @HD-dw7zk 4 роки тому

    thanks

  • @mandeepubhi4744
    @mandeepubhi4744 6 років тому

    Nice.

  • @iliasvrynas9189
    @iliasvrynas9189 3 роки тому

    but the z stops at 1-y WHY does the z-integral goes to 1?????

  • @connormichalec
    @connormichalec 11 місяців тому

    helpful

  • @davynrodocker8935
    @davynrodocker8935 11 місяців тому

    What about dxdzdy?

  • @fillername4223
    @fillername4223 3 роки тому

    Legend

  • @HaitaoWang268
    @HaitaoWang268 4 роки тому

    Triple integral. Yay!

  • @SteamPunkLV
    @SteamPunkLV 6 років тому

    when is your next stream going to be?

  • @J.P.Nery.N.
    @J.P.Nery.N. 4 роки тому +1

    Good luck drawing this on a test lol

  • @theSASarethebest
    @theSASarethebest 6 років тому

    Do you teach calc 3 as well?

  • @ram_2016
    @ram_2016 4 роки тому

    Tq sir

  • @abhiishekmuralidhar2565
    @abhiishekmuralidhar2565 4 роки тому

    Why wouldn’t the boundaries of y be from 0 to 1?

    • @drumman22
      @drumman22 2 роки тому

      cuz it's in terms of dz

  • @siphilipe
    @siphilipe 2 роки тому

    Any, even microscopic critic can be read?

  • @PedroTechnologies
    @PedroTechnologies 3 роки тому +1

    Bruh chill 3:03

  • @srpenguinbr
    @srpenguinbr 6 років тому

    I accidentaly worked out the problem for y going from x to 1 ;-;

  • @peppybocan
    @peppybocan 6 років тому

    So the graph of a function is a piece of tangerine. Kinda like a cutout of an apple, ...

  • @timperry6948
    @timperry6948 6 років тому +2

    I imagine a day when VR allows us to visualize this in three dimensions. Will we make huge advances in maths and sciences when we have entire generations who live in an abstract world?

    • @yerr234
      @yerr234 6 років тому

      i'm pretty sure it is already a thing now

  • @نعمللوحدة
    @نعمللوحدة 5 років тому

    genius

  • @user-vm6qx2tu3j
    @user-vm6qx2tu3j 6 років тому

    😍😍😍😍

  • @cycklist
    @cycklist 6 років тому +1

    Zed!

    • @ianmoseley9910
      @ianmoseley9910 6 років тому

      Portsmouth FC Yes being British I find the US pronunciation of "z" as zee slightly distracting, but thats my problem

  • @ssdd9911
    @ssdd9911 6 років тому

    blackpenredpenbluepen

  • @LiNa-nw2zb
    @LiNa-nw2zb 6 років тому

    I've done it.
    Now a bit of sarcasm incoming
    However easiest solution would be to switch axis so x becomes y and y becomes x
    XD

  • @atulit
    @atulit 6 років тому

    Graph of y=x^2 is wrong

    • @laxmipapney7182
      @laxmipapney7182 6 років тому +2

      what is wrong about it?

    • @blackpenredpen
      @blackpenredpen  6 років тому +2

      Laxmi Papney i guess not pretty enough?

    • @JensenPlaysMC
      @JensenPlaysMC 5 років тому +2

      That moment when you are watching a video on triple integrals but cannot graph y=x^2

  • @wubbalubbadubdub3352
    @wubbalubbadubdub3352 2 роки тому

    How would you explain this to a blind person? You shouldn't have to rely so heavily on visualization. Math is about rigor.

    • @blackpenredpen
      @blackpenredpen  2 роки тому +4

      ?

    • @saturn_Il
      @saturn_Il 2 роки тому

      whats the point in doing something you dont understand

    • @elias69420
      @elias69420 2 роки тому

      How would you show a book or a paper to a blind person? How would you read it aloud to a deaf person?
      What is this form of rigor that is accessible to absolutely all people?

  • @777loveforever
    @777loveforever 3 роки тому +1

    I'm gonna marry him someday I sware
    🥰
    Thanks uwu

  • @mrsam4113
    @mrsam4113 4 роки тому

    Your videos are way too long and I can't understand pig latin

  • @blblbl2750
    @blblbl2750 6 років тому

    blackpenredpenbluepen