Calculus 3 Lecture 14.1: INTRODUCTION to Double Integrals (Background Info)

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  • Опубликовано: 12 окт 2024
  • Calculus 3 Lecture 14.1: INTRODUCTION to Double Integrals (Background Info): A lesson on where double integrals come from, what they represent, and how to understand them.

Комментарии • 236

  • @abdullaalawadhi862
    @abdullaalawadhi862 8 лет назад +418

    As an engineering undergrad, I'm impressed with the passion and the effort that you put into your lectures, as well as the sequential procedure that you take and the tiny details that you consider. Keep it up Sir!

  • @marbrydav9698
    @marbrydav9698 7 лет назад +215

    Nothing like cracking open a cold one and watching some Professor Leonard.... Ahhhh.
    Got a Calc III midterm in 2 days. -A Canadian boy

    • @AvatardSwag
      @AvatardSwag 5 лет назад +8

      how did you go?

    • @daliramon3846
      @daliramon3846 4 года назад +10

      Ahh yes. And two years later it is still just as great. I have a test in a few days as well. Friday night with a sixer and some Leonard.

    • @wakeupthisisntreal8168
      @wakeupthisisntreal8168 2 года назад +2

      Wow so you resort to legal activities I see🧐 can't relate

    • @DylanThomas-nf6tu
      @DylanThomas-nf6tu 15 дней назад

      @@daliramon3846 Professor Leonard rocks you could call him Leonard Skynard

  • @biscaynebuckets
    @biscaynebuckets 7 лет назад +184

    Hands down one of the best profs on YT. We appreciate you, Leonard!

  • @Fidonese
    @Fidonese 6 лет назад +41

    "I would be (upset) unless I gave you at least, like, two examples of how to actually use this."
    That right there is the sign of a good lecturer.

  • @mohammd
    @mohammd 5 месяцев назад +6

    Professor Leonard, you're the greatest teacher I've ever come across. The world need more people like you. Thank you.

  • @LightskinLordandSaviour
    @LightskinLordandSaviour Год назад +9

    some lecturers so good it makes you wanna teach people

  • @seoexperimentations6933
    @seoexperimentations6933 7 лет назад +56

    I just understood one of the most important concepts in calculus, this teacher is literally the best there is!

  • @azwadrahman4796
    @azwadrahman4796 7 лет назад +26

    Professor Leonard,
    your passion to actually make sense of calculus and allow us to have a deep understanding of the concepts has set off the infinite number of lightbulbs in my head. Thank you for everything and without a shadow of a doubt you are the best calculus teacher I have ever come across whether it be on youtube or live.

  • @khizarpasha6105
    @khizarpasha6105 4 года назад +19

    0:00 -calc 1 def of reimann sums
    10:35 - calc 3 def of reimann sums
    34:26 - fuibinis theorum
    35:18 - example
    47:11 - intro to integrating over non rectangular regions

  • @madisonharp7756
    @madisonharp7756 6 лет назад +9

    As an undergrad math major in cal III, you have made so much sense out of something my professor over-complicates and refuses to elaborate on. I can't be more grateful. Thank you for sharing your teaching ability! It's hard to find teachers that are as dedicated and truly put the effort into helping students understand.

  • @generativeresearch
    @generativeresearch 6 лет назад +3

    The way this professor explains shows his extent of knowledge and grasp on the subject. And the simplicity with which he explains adds to the depth and that is simply beautiful. Respect.

  • @marwa6484
    @marwa6484 4 года назад +8

    Professor Leonard: saving one and all undergrad failing grades all around the world. Thank you! I've never seen anyone so passionate about math.

  • @varrien4310
    @varrien4310 4 года назад +3

    Just to add : thanks very much for the commitment and efforts at making math , calculus , etc easier, more accessible, interesting and fun .
    I avoided it in lower secondary,struggled but failed it in high school,struggled through it in college , but now thanks to instructors like you, I'm learning more math , better , and learning it easier .
    Math is still very material and relevant to me and I need to have a stronger foundation and better recall -because I'm continuing in my lifelong learning in social science and more post-graduate programs.
    Thanks again.

  • @lukeauslender6494
    @lukeauslender6494 4 года назад +7

    Noticed a lot of the comments are old.. just wanted to let you know you're saving my Online Calc 3 grade in 2020! :)

  • @姜翔竣
    @姜翔竣 11 месяцев назад +1

    Incredible Professor Leonard! I love the calc 1 and 3 side-to-side comparisons (clearing up the confusion). Cannot thank you more for letting us understand the concepts of double integrals in less than 30 minutes!

  • @beatrix2745
    @beatrix2745 4 года назад +3

    No, math tutoring ad. I am not worried about my grades and future plans. You know why? Because of Professor Leonard. Thank you very much.

  • @vickrdable
    @vickrdable 6 лет назад +16

    Why is he particularly witty during this lecture? I was laughing the whole time

  • @blakehill625
    @blakehill625 7 лет назад +40

    So i really enjoy math, and i'm currently working on my bachelors of education to become a math teacher (hopefully calc), and with you as my teacher I have aced calc 2 and i'm about to ace calc 3, so thank you so much for that, but that's not the reason for my comment.
    I do not attend my university lecture and instead follow along with your videos playing at 2X speed. Works just fine for me, and i really love how you get super into the "main point" portions of lecture at the end of a long description. Well, because of this enthusiasm, at 26:55, you're about to finish the intro to double integrals, and you get really excited and make a comment on how squeaky your voice got, and wow was it hilarious at double the speed. Just wanted to say that because i had to pause for a while so i could stop laughing and pay attention again.
    You're the man Mr. Leonard, I really appreciate all these and you're definitely someone i look up to when imagining my future teaching career.
    - An aspiring calculus teacher

    • @Jacob-kc9ct
      @Jacob-kc9ct 4 года назад +8

      hows everything going in terms of being a calc teacher so far?

    • @anime-bw7vq
      @anime-bw7vq Год назад

      @@Jacob-kc9ct hows life in general

  • @joshuamendez425
    @joshuamendez425 2 года назад

    I just finished math last semester wouldn't have gotten all A's without you Prof Leonard you're really the goat. Can't even put into words the impact these lessons had on me. Got mad respect for you and i rock my "professor Leonard believes in you shirt" with a lot of pride.

  • @ZackSussmanMusic
    @ZackSussmanMusic 5 лет назад +13

    I applaud you for your amazing teaching ability and passion for calculus! Thank you so much I actually understand double integrals now :D

  • @mzukisimakaluza4210
    @mzukisimakaluza4210 6 лет назад +12

    "Listen carefully, I don't wanna lose you now you've seen too much. You have to learn all of it." hahaha this really injected some energy to the lesson.

  • @spaceluke420
    @spaceluke420 11 месяцев назад

    hands down one of the best lectures i have ever heard. explaying everything very easily!

  • @rodolfog2459
    @rodolfog2459 5 лет назад +2

    I needed a calculus refresher, and this is AWESOME! I sort-of learned how to do double integrals long ago, but never this way. Thank you, Prof. Leonard!

  • @abelhanns2094
    @abelhanns2094 2 года назад

    I have watched your video for two years, and for the first time your student asked for a question. You are amazing!!!!!!!!!!!!!!

  • @jawadshah8043
    @jawadshah8043 4 года назад +1

    Hi! Sir I am Jawad from Pakistan. I really like your way of teaching. It's really very great. You explain every topic very well. God bless you Sir.

  • @georgesadler7830
    @georgesadler7830 2 года назад +1

    Professor Leonard, thank you for an awesome video/lecture on the Introduction to Double Integrals in Multivariable Calculus. The theory and background on Double Integrals are helpful for a full interpretation and understanding. From watching this short video, I understand Double Integrals and its development in Calculus. Many problems in Electromagnetics Theory use Double Integrals.

  • @DanielSColao
    @DanielSColao 3 года назад +1

    Lectures like this one make me more and more attracted by math. I have successfully understood the concept of integral and why it works thanks to you, Leonard!
    Best of luck!
    -CS undergrad

  • @Mrkevi123
    @Mrkevi123 8 лет назад +439

    Does this guy ever rip his shirt and leave in the middle of class?

    • @ProfessorLeonard
      @ProfessorLeonard  8 лет назад +285

      +Kevin Hinojosa Only on Thursdays.... hahaha, jk.

    • @cemaknc8995
      @cemaknc8995 8 лет назад +14

      +Professor Leonard Sir, I really wonder the size of your biceps ? :)

    • @vladan_kovacevic
      @vladan_kovacevic 8 лет назад +163

      +asdsa dasdad Well, use double integral to calculate it!

    • @yunfeichen9255
      @yunfeichen9255 6 лет назад +2

      Lolz wow do you get stares?????

    • @nanoptkqueen
      @nanoptkqueen 4 года назад +8

      @@ProfessorLeonard today is THURSDAY!!!!!!!!!!!!!!!!!!!!

  • @user-fh5xu4gt4c
    @user-fh5xu4gt4c 5 лет назад

    I will do anything you want me to. You helped me a lot, I couldn't have gotten my assoicate degree in math without you. Now I'm working towards a B.A. in Computer Science, thanks a lot for everything.

  • @location4898
    @location4898 7 лет назад +12

    you are THE PROFESSOR

  • @petertailor8545
    @petertailor8545 5 лет назад +5

    Professor Johhny Bravo. Best ever

  • @shannonmower5615
    @shannonmower5615 2 года назад

    Thank you so much for your clarity in describing these lectures. I am currently in this course at another university and our lectures are about 16 minutes long - just a few sample problems. It's not enough information for me. Thank you for describing the theory and connections so that I can visualize the math. Fantastic! Thank you for sharing your talents!

  • @leredsock
    @leredsock 4 года назад +1

    I've totally been converted. 10 videos ago, I was dreading watching all these videos to catch up on my poor maths. Now, at 11:30 when he says "Thats cool!" I couldn't be more excited with him!

  • @shasterdhari
    @shasterdhari 6 лет назад +69

    I'm screwed for the final, but due to your lecture, I'm less screwed...

    • @MrJohn-wy2hn
      @MrJohn-wy2hn 6 лет назад +1

      lol

    • @Salamanca-joro
      @Salamanca-joro 5 месяцев назад +3

      What happened to you after 6 years 😂😂

    • @shasterdhari
      @shasterdhari 5 месяцев назад +1

      @@Salamanca-joro LMAO I actually passed the final and now i’m an electrical engineer! Was working at Amazon AWS and now layed-off and prob gonna go back for my masters. So now I must rewatch and relearn this horror…

    • @Salamanca-joro
      @Salamanca-joro 5 месяцев назад +1

      @@shasterdhari haha glad to hear that you are doing good! I am in my first year of college taking this at calculus 2 so I had to check on people in the comments after 8 years 😂! Wish me luck 🙌

  • @WolfPup-gb8ze
    @WolfPup-gb8ze 3 года назад

    Most videos tell you how to do a double integral but not why it works. This covered it beautifully. Thank you very much!

  • @SamSlaysTV
    @SamSlaysTV 2 года назад +2

    I wish I have Professor Leonard as my Calc 3 Professor. I'm failing calc 3 now as my university professor sucks at explaining anything.
    Thank you Prof Leonard,
    - CS Major Undergrad

  • @waleedawadh9870
    @waleedawadh9870 2 года назад +1

    انت مبدع يا ليونارد

  • @hare.gator23
    @hare.gator23 4 года назад +2

    The embodiment of a Calc god. I cry not having such a math driven professor who motivates students in calculus. If only there were a professor Leonard for Physics 2 😭.

  • @81546mot
    @81546mot 4 года назад

    PROFESSOR LEONARD IS PROBABLY THE BEST CALCULUS TEACHER IN THE WORLD. YOU DO A FANTASTIC JOB AND THAT IS AN UNDERSTATEMENT.

  • @andreaevans4271
    @andreaevans4271 6 лет назад +1

    The intro to this video is so good, I want to cry right now at how he makes the hardest part of early calculus ACTUALLY MAKE SENSE. #mindblown

  • @usmanalam23
    @usmanalam23 8 лет назад +2

    I'm loving this timing, just in time for me to brush up on the last few bits before finals begin. I hope to possibly see a little bit on triple integrals and separable differential equations just so I can see how you go through it. Cheers Superman, you're the best

  • @beezball38
    @beezball38 8 лет назад +4

    I gotta say I never actually got the explanation of dividing up the interval into infintesimal slices and taking the limit of those until calc III
    so happy you have these videos up, this was my favorite undergrad math class

  • @souravsir7991
    @souravsir7991 7 лет назад +1

    sir I was never, able understand what double integral actually meant, sir u made it clear sir u r living god on this earth for me thanks a lot.

  • @madalincalamanciuc6656
    @madalincalamanciuc6656 7 лет назад +21

    Hmmmmm, no math background needed to follow Prof. Leonard Calculus 3 Double Integrals Course. He is that good!

  • @kayrauckilinc
    @kayrauckilinc 4 года назад +1

    Finals again, so glad Professor Leonard still has lectures that I need

  • @chessematics
    @chessematics 3 года назад

    One of the most underrated channel's on RUclips

  • @buddydog1956
    @buddydog1956 6 лет назад

    Whatta character!!! A most excellent teacher! Wished I had him during my calculus classes way back when ~

  • @jayceinfinitealgharhythmns9814
    @jayceinfinitealgharhythmns9814 6 лет назад +6

    You know, you look like Clark Kent but you really are Superman when doing these videos… your secret identity has been exposed! Thank you so very much for this! Greatly appreciated!😃😃😃

  • @shilpamishra3817
    @shilpamishra3817 5 лет назад

    How splendidly you have explained the quintessence of ∫ and dx !
    You've explained the "kernel of integration and derivation" and what it "actually" represents!
    Thank you~

  • @casonscarce978
    @casonscarce978 5 лет назад

    got my first college calc 3 exam in the morning. Thanks for the help, prof.

  • @elliot933
    @elliot933 3 года назад

    I just stopped the video to comment. This is just a fantastic explanation... Hands down. Excellent professor! Europe engineering student here!

  • @francescocuccu4218
    @francescocuccu4218 3 года назад

    You really are great! You helping me so much in preparing my calculus exam. A lot of love from Rome, Italy! :D

  • @m13m
    @m13m 8 лет назад +36

    Prof Leonard can you upload the assignment and notes of course.

    • @SR71Gam3r
      @SR71Gam3r 7 лет назад +6

      Damn that would have been amazing..

  • @davidkinghorn1171
    @davidkinghorn1171 2 года назад

    I love this guy.... You are saving my life...

  • @Timebomb1010
    @Timebomb1010 7 лет назад +5

    thank you again leonard!!! i made a 20 on my first exam before i started watching your videos. On my most recent I made a 100

  • @josephtraverso2700
    @josephtraverso2700 3 года назад

    I solely learn from the textbook, but this lecture was spot on! Bravo!

  • @aboabd1671
    @aboabd1671 5 лет назад

    This is the essence of Math!! Bravo et merci beaucoup!!

  • @ShuiabJimcale
    @ShuiabJimcale 7 месяцев назад +1

    crazy how he got me past precalc, calc 1 , calc 2 and now calc 3

  • @ROHITSONIBEC
    @ROHITSONIBEC 6 лет назад

    great teacher with great teaching skill

  • @sony1979iq
    @sony1979iq 3 года назад +1

    Greate teching man.. you are so good to explain thing to ur students.. Im envying them really... wish your were my teacher at university :(

  • @TillyJones11
    @TillyJones11 5 лет назад +2

    you are a gift from the math gods

  • @artmoreno7930
    @artmoreno7930 5 лет назад

    Thank you so much! I am taking cal 3. You are the best professor !

  • @ExploreWinnipeg
    @ExploreWinnipeg 2 месяца назад

    Wow, I passed calc 1 and I thought I knew what integration was, but I had no idea. I had to watch a lecture on double integrals to really understand intergration.

  • @someone5895
    @someone5895 7 лет назад +104

    This dude legit has kermit the frog in his class. And apparently Kermit is the only one paying attention.

    • @phambee
      @phambee 6 лет назад +8

      I thought of Stitch

    • @goodc.2853
      @goodc.2853 5 лет назад +2

      I also thought of Adam Driver haha

  • @mozy9018
    @mozy9018 5 лет назад +9

    I mean your lectures are just amazing but my freaking uni is giving us calculus 1,2and3in the same semester and I swear to god i am not kidding
    And tomorrow is the final like literally the shittest uni on earth

  • @miasdad884
    @miasdad884 4 года назад

    professor leonard..i love you..you really simplified maths for me

  • @marioleon4102
    @marioleon4102 3 года назад +1

    Damn, that made beautifully perfect sense, compared to my current professor using slideshows and shot gunning the whole solution and using a mouse cursor to explain things. Thank you for understanding your craft so well that you’re able to break it down into something that actually makes sense even while still using abstract concepts of arbitrary points and infinitely small deltas of x and y. I feel like I have a better grasp on not only double integrals, but just integrals in general. Thank you for being an excellent teacher sir. It’s 1 in the morning, so I’ll finish the rest of this video tomorrow lol.

  • @tman16s
    @tman16s 8 лет назад +18

    why would any one dislike your videos you are a GOD

  • @SamuelLee-gw6wr
    @SamuelLee-gw6wr 2 года назад

    thanks to you I never care about my math2011 lecture and you will carry me to A range

  • @rukaiyatsuleiman9718
    @rukaiyatsuleiman9718 7 лет назад +1

    Thank you very much for this....I had this being solved without knowing the reason behind solving it....

  • @seeelin95
    @seeelin95 8 лет назад +2

    Hey! Thanks for your classes and help a lot. Are you going to upload the next double integral videos? You are the best!

  • @erfan8909
    @erfan8909 7 лет назад

    Thank you very much for the videos. You are amazing at teaching. Im skipping my own lectures and study off of your videos! thank you again.

  • @hemanth123
    @hemanth123 3 года назад

    Simply awesome sir,
    U derivated that from its root,
    I mean points .
    I think it is what we should know before getting into integration.
    Fantastic sir

  • @danielsin5563
    @danielsin5563 6 лет назад +1

    As a 17 year old high school high school student, I find your lectures very easy to watch and usually watch them in 2x Speed.

    • @multitude1337
      @multitude1337 3 года назад +2

      double high school student, we must integrate

  • @jameshardy8302
    @jameshardy8302 4 года назад

    This guy deserves a medal💗

  • @JuiceBoxBoiii
    @JuiceBoxBoiii 4 года назад +1

    You are awesome man

  • @الحمدلله-ح8ق6ذ
    @الحمدلله-ح8ق6ذ 2 года назад

    IM a 4th year engineering student and this is the first time i know where the integration came from or even what it is

  • @derpderpinson7449
    @derpderpinson7449 4 года назад

    who wouldn't pay attention with this legend as their professor?

  • @ivetteamador9122
    @ivetteamador9122 5 лет назад +1

    you are the Xavier of the ∆X-men. saving the world one lecture at a time

  • @mengistu54
    @mengistu54 2 года назад

    amazing and surprising. I wonder your, my dear professor

  • @davidduran8471
    @davidduran8471 11 месяцев назад +2

    Lecture Content
    (0:00) Calculus I Background Knowledge to Understand for Double Integrals [Theory]
    (9:40- 36:00) Introduction to Double Integrals [Theory]
    (36:00 - 47:00) Volume Under a Surface Bounded by a Rectangular Region (using finite m & n values) [Example]
    (47:00 - 52:00) What About Non-Rectangular Regions? [Theory]

  • @iam.friesen
    @iam.friesen 4 года назад

    thank you Prof Leonard! you are a life saver

  • @Finne57
    @Finne57 6 лет назад

    This teacher does not want to leave students behind - I am shouting out tghe answers - sometimes the wrong ones. So many teachers don't care or don't know how to do this!

  • @Hobbit183
    @Hobbit183 6 лет назад

    Havent started calc 3 yet but i feel after watching all these lectures its going to be a piece of cake :>

  • @samyamshrestha
    @samyamshrestha 2 года назад

    You made my day. Thank you professor. Lots of love.

  • @eng-firas4692
    @eng-firas4692 6 лет назад

    Big Thanks Professor Leonard.

  • @alexreinhard4472
    @alexreinhard4472 3 года назад

    Professor Leonard is a legend!!

  • @HotChip_Inc
    @HotChip_Inc 4 года назад +2

    my mind has been blown

  • @dhairyabhatt3156
    @dhairyabhatt3156 7 лет назад

    sir your teaching techniques are great I understood everything😇thank u

  • @Venkymsd
    @Venkymsd 4 года назад +1

    Really it helped me a lot bro

  • @JoseRodriguez-so1kj
    @JoseRodriguez-so1kj 6 лет назад

    Thank you very much professor Leonard, Very helpful for me, Super Math Pro!

  • @amirulfadzil7
    @amirulfadzil7 4 года назад +2

    This professor makes me miss my physical class :'(

  • @robertwilsoniii2048
    @robertwilsoniii2048 8 лет назад

    This is a really great video. Thanks again.

  • @Vss.alex2018
    @Vss.alex2018 7 лет назад

    Big fun to learn from Prof. Leonard. Thanks! )

  • @princecastro985
    @princecastro985 6 лет назад +1

    IS ANYONE GOING TO TALK ABOUT HOW HE CRACKED HIS KNUCKLES AT 29:03??? THAT WAS SICK!!!

  • @rey_broncas
    @rey_broncas 4 года назад

    This dude is the best!

  • @immanuelm6763
    @immanuelm6763 3 года назад

    Cool, calm and collected. 😎

  • @AvoidsPikes-
    @AvoidsPikes- 6 лет назад

    Fantastic professor.

  • @yuhangdu5626
    @yuhangdu5626 2 года назад

    Thank you very much for the video!

  • @skepat9426
    @skepat9426 8 лет назад +5

    GOOD JOB!