Why is 0! = 1?

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  • Опубліковано 29 кві 2014
  • Main site: www.misterwootube.com
    Second channel (for teachers): / misterwootube2
    Connect with me on Twitter ( / misterwootube ) or Facebook ( misterwootube)

КОМЕНТАРІ • 18 тис.

  • @baxwarrior1681
    @baxwarrior1681 5 років тому +151778

    I can't believe I'm watching this video for entertainment

    • @amadodiallo3167
      @amadodiallo3167 5 років тому +6496

      This is the true message that all teachers should learn:
      "No matter how uninterested a student is in a topic, if you teach it right, you can make it entertaining to them and help them learn."

    • @gamingmasterjak7467
      @gamingmasterjak7467 5 років тому +227

      @bax warrior me neither

    • @baxwarrior1681
      @baxwarrior1681 5 років тому +697

      @@amadodiallo3167 Absolutely, I got a teacher that has been able to make boring even n-dimentional curves

    • @marinas1312
      @marinas1312 5 років тому +74

      Same

    • @Teqnyq
      @Teqnyq 5 років тому +264

      *m u s t o b e y r e c o m m e n d a t i o n s*

  • @alelanzz5889
    @alelanzz5889 4 роки тому +6771

    Teacher: "and i divided by one"
    Class: "WOOAHHHH!"

    • @mrp0001
      @mrp0001 4 роки тому +168

      I'd do the same there

    • @phenomenalphysics3548
      @phenomenalphysics3548 4 роки тому +98

      @@mrp0001 same. Lol I do that all the time because maths is always so exciting

    • @smthngintherain
      @smthngintherain 4 роки тому +113

      Oh my god, he divided by one.

    • @dominicwalsh3888
      @dominicwalsh3888 4 роки тому +140

      Every teacher's favourite sound.

    • @MarceloCutin
      @MarceloCutin 4 роки тому +23

      I laughed out loud when I watched this part. :D

  • @cthoadmin7458
    @cthoadmin7458 11 місяців тому +1059

    Someone who clearly loves his job. Thank god there are people like this in teaching.

  • @samcorbett8783
    @samcorbett8783 7 місяців тому +209

    the slow roar of the classroom realizing at 2:48 to 2:55 must have felt like being an absolute rockstar for teachers. If I would have heard this kind of reaction from the classmates around me, the entire atmosphere could have been different.

    • @ognam1
      @ognam1 22 дні тому +4

      having an engaging teacher makes all the difference

  • @ammocraft
    @ammocraft 2 роки тому +12583

    Wish I’d had this guy as a maths teacher all those years ago. The “why” is so important to assist understanding…..we just got taught the “how”.

    • @darshan7460
      @darshan7460 2 роки тому +9

      Absolutely crt...!

    • @terabaap1775
      @terabaap1775 2 роки тому +28

      @brotinger_1 we got taught exactly that in my school

    • @imengaginginclown-to-clown9363
      @imengaginginclown-to-clown9363 2 роки тому +93

      @brotinger_1 That's not a proof. That's just an argument for why it should be defined this way. You need to give a proper definition of a^x before you can prove properties about it.

    • @rosemaria4337
      @rosemaria4337 2 роки тому +1

      @brotinger_1 p... P. . Mm mm mm. Mm mm. O all o!o. Mmg, mm mm mm mm mm me mom o miss. O MMO o mm l mm mm mm. momma .p
      Mm
      Mm moo o

    • @ashiumtanwirahmed011
      @ashiumtanwirahmed011 2 роки тому

      Exactly

  • @ni5hu
    @ni5hu 4 роки тому +8641

    This is exactly what a teacher is supposed to do for students: create curiosity towards the subject.

    • @akira-chan591
      @akira-chan591 4 роки тому +221

      I have a teacher like that and holy crap. Everything he teaches me, I almost always get what he's trying to teach me. People always think teaching is easy and everyone can do that. Well yeah but not everyone does it so well like this teacher in the video. I think thats really cool and see it as a gift ✨😊

    • @headhumper3398
      @headhumper3398 4 роки тому +29

      the students wont stfu, is that how it is these days?

    • @soopy8909
      @soopy8909 4 роки тому +66

      I pretty sure he's the no.1 math teacher in Australia

    • @seemadave1095
      @seemadave1095 4 роки тому +13

      @@akira-chan591 you right. Our education system is itself just a big crap

    • @MK-ju5ys
      @MK-ju5ys 4 роки тому +5

      @@headhumper3398 yep that basically most of the lectures nowadays

  • @dorpachter8577
    @dorpachter8577 9 місяців тому +778

    My favorite argument for why 0! = 1 is the Combinatorical argument for it.
    In Combinatorics, n! is the same as the number of unique ways you can rearrange n items into n unique slots, because you would have n choices for where to place the 1st item, n-1 choices to place the next item, and so forth, you multiply all of your choices to get n!.
    So 0! should therefore be the number of ways to rearrange 0 objects in 0 slots, which would be 1 because there's only 1 way to do it and you cannot change it.

    • @ankusaini6092
      @ankusaini6092 8 місяців тому +20

      Shouldn't that be 0?

    • @aj76257
      @aj76257 8 місяців тому +137

      @@ankusaini6092There’s 1 way to arrange nothing

    • @braziliantsar
      @braziliantsar 8 місяців тому +19

      Oh yeah, anagrams! The only practical use I know for factorials

    • @parsleyeugene
      @parsleyeugene 8 місяців тому +4

      Amazing!

    • @judassab
      @judassab 8 місяців тому +5

      @@aj76257 which is?

  • @ronnysharma6767
    @ronnysharma6767 10 місяців тому +145

    I love his lesson at the end about Fourier! Those kids are lucky to have such a passionate math teacher. You can just feel his enthusiasm and passion for it when he was giving that explanation.

  • @Helm_To_108
    @Helm_To_108 Рік тому +10421

    For future internet historians:
    At 1:22 Mr. Woo mentions "People who have spent time on their phones recently know these numbers very well". This is because in 2014 a mobile game called "2048" was all the rage. In that game you slide numbered tiles around to combine like numbered tiles to create larger numbered tiles. The lowest number is 2, so as you can imagine the combinations follow a 2n pattern. Hence 2, 4, 8, 16, etc is quite familiar to young students at the time.

  • @tafm3446
    @tafm3446 5 років тому +16920

    How many people have asked their teachers and were told “...because it just is”

    • @remyjones9146
      @remyjones9146 5 років тому +689

      Literally. So frustrating.

    • @fernandozavala2661
      @fernandozavala2661 5 років тому +413

      I got what you said, it's really frustrating. But look this way: "...because it just is" is a quite more practical and easier way to continue with other topics, sometimes it is just necessary.

    • @EsDoncor
      @EsDoncor 5 років тому +298

      Not always the most curious people become teachers and on many places around the world they're usually underpaid. Thank god we now have social networks like UA-cam where we can watch really enthusiastic educators like this one. We as society must spread the world about this sort of content in the web so more people have access to it and more people feel inspired to produce content like this with that same enthusiasm

    • @ryandaepic1838
      @ryandaepic1838 5 років тому +17

      I got so used to that so when I met this I figured it out myself.

    • @Mianhe
      @Mianhe 5 років тому +57

      Literally why i flunked math when we immigrated here in Canada. They over explain the simple stuff, yet when it came to trigo they just tell us to press buttons on the calculator

  • @turtlesandwich77
    @turtlesandwich77 7 місяців тому +52

    Their reactions when the explanation came was so relatable. It's one of those Maths things that sounds like it's gonna be so complicated but it boils down to something quite simple and you wonder why you couldnt see it from the start.
    And this teacher/lecturer/professor would have me getting good grades. He makes me want to learn, and makes it enjoyable and approachable.

  • @stephenho5272
    @stephenho5272 9 місяців тому +341

    I graduated in Electrical Engineering from one of the top universities in the world 35 years ago and no one has ever shown or explained to me these proofs and I accepted these as truths or axioms. Mad respect to this teacher!

    • @youssefbencheikh8637
      @youssefbencheikh8637 9 місяців тому +2

      May I ask what was th university you attended?

    • @francescom2027
      @francescom2027 8 місяців тому +19

      apparently one of the top universities in the world doesn't teach its engineers the definition of factorial nor how to distinguish a proof from a fun fact..

    • @youssefbencheikh8637
      @youssefbencheikh8637 8 місяців тому +32

      @@francescom2027 @francescom2027 i think you should learn to read the comment before making such a stupid reply.
      He was implying that they didn't teach him _why_ 0! = 1, not that they didn't teach him factorial in general. There is clear difference between the _how_ and the _why_
      Knowledge of how concepts in mathematics work provides a better understanding of the subject in general, explaining why 0! = 1 is not a "fun fact", as you would appear to think
      Honey, you might want to review your levels in reading comprehension and mathematics rather than nagging at random people all day.

    • @francescom2027
      @francescom2027 8 місяців тому +8

      @@youssefbencheikh8637 the explanation in the video is not a proof but a fun fact. 0!=1 by definition of factorial. This definition is necessary because every factorial ends with 1!, and:
      1!=1(1-1)!=1*0!=0!
      You'll convey that you don't really need Princeton for this...

    • @uzeyircinar462
      @uzeyircinar462 6 місяців тому +4

      actually it isnt a proof and correct. We defined it because ıt works us. when we need it we accept it like that. Think what is union sets of empty ? can you connect empty things ?

  • @bearkillar6405
    @bearkillar6405 3 роки тому +4148

    Why isn’t every math teacher like him;(

    • @Iforgothowtodothis
      @Iforgothowtodothis 3 роки тому +19

      My teacher isn't like this but she is amazing

    • @sleepcrown1
      @sleepcrown1 3 роки тому +84

      If all teachers were like this one, people still complain.

    • @melchior6427
      @melchior6427 3 роки тому +12

      My teacher is exactly like this, but much older and speaks Dutch

    • @_Megasthenes_
      @_Megasthenes_ 3 роки тому +11

      You have to be good when you're uploading it on UA-cam Lmao

    • @bhuvigupta7391
      @bhuvigupta7391 3 роки тому +8

      bcz if every math teacher would be like him then no would have interest in his channel
      but seriously he is a great teacher

  • @saarakassimali3893
    @saarakassimali3893 3 роки тому +3697

    Wow math is actually interesting when someone knows how to explain it well

    • @delta8551
      @delta8551 3 роки тому +12

      Shi kha 😂

    • @MaksKCS
      @MaksKCS 3 роки тому +86

      How to roast all math teachers with 1 sentence

    • @vectrom21
      @vectrom21 3 роки тому +46

      You can say that to almost all subjects actually.

    • @delta8551
      @delta8551 3 роки тому +5

      @@vectrom21 teachers sucks already

    • @arneshgupta1364
      @arneshgupta1364 3 роки тому +33

      a raised to power 0 is one. Thats just how it is
      Its a rule of exponents. Its a law so shut up and stop disturbing the class
      Almost every maths teacher

  • @AsadbekN
    @AsadbekN 4 місяці тому +160

    Anyone from 2024?

  • @peterirvin7121
    @peterirvin7121 11 місяців тому +13

    I've read Fourier's original book on heat transfer, and he was absolutely motivated to develop the OG fourier series to further study heat transfer.

  • @DrJones0801
    @DrJones0801 4 роки тому +6113

    Meanwhile my math teacher is: "That's just the way it is. Don't question it!"

    • @taekwondotime
      @taekwondotime 4 роки тому +282

      Which usually means they don't know the answer either, they only know how to regurgitate what they've learned.

    • @DrJones0801
      @DrJones0801 4 роки тому +52

      @@dhruvbhagchandani It wasn't my intention to try to get likes, only to speak my mind. And if you're gonna insult someone, at least do it right and write *god's* sake.

    • @williamchen2894
      @williamchen2894 4 роки тому +10

      You and I have had different teachers. I learned this in middle school when we did probability in algebra. It’s a really simple argument to follow I don’t understand how anyone could be confused by it

    • @DrJones0801
      @DrJones0801 4 роки тому +83

      @@williamchen2894 See it's exactly that mindset that makes my math teacher unbearable. He thinks that because *he* understands it, everyone else also must, and thus he belittles students when they don't know the answer.

    • @igrnge2883
      @igrnge2883 4 роки тому +5

      **STOLEN COMMENT ALERT**

  • @absolutegamert2889
    @absolutegamert2889 4 роки тому +1995

    *I think I gained brain cells while watching this.*

    • @rachitanayak_
      @rachitanayak_ 4 роки тому +18

      Me too. I used to be dumb before.

    • @k.4418
      @k.4418 4 роки тому +17

      @@rachitanayak_ 😂😂😭😭RIP the old you

    • @charlestalks5638
      @charlestalks5638 4 роки тому +7

      I think I lost a brain cell reading this comment

    • @mrkhom4413
      @mrkhom4413 4 роки тому

      @@ISGNN ការ

    • @absolutegamert2889
      @absolutegamert2889 4 роки тому +1

      @@charlestalks5638 👩‍🔧

  • @unnesseth8325
    @unnesseth8325 6 місяців тому +18

    Since I see so many other people telling personal stories, I'll add mine to the pot.
    Eddie reminds me of my current AP Calculus teacher, whom also taught my Precalculus class last year. Now, up until Precalculus, I didn't really care too much about math. I was always pretty good at math, but it wasn't something I really thought much of. It was just another subject in school to me. This mindset changed when I took his class. This Precalculus class (which I took at the same time as my school's Algebra 2 class) scratched an itch that I didn't know I had in my brain. Not only were we learning things as well as why and how they work (which was a first for me), but my teacher also knew where the concepts we were learning got applied. Whenever I'd ask him where the subject we were learning was used, he would say something like "Oh, this stuff is used to calculate the shape of Formula 1 cars". In just that one year, I went from being indifferent to math to actually liking it quite a bit. Fast forward to now and I am completely in love with math. Although calc can be hard, there's just something about that is so... satisfying. And my teacher has kept his trend of giving examples of where things are applied whenever asked.
    This comment is to you, Mr. Kramer. Thank you so very much for igniting a passion that I didn't know I had

  • @FA-dz8ls
    @FA-dz8ls 9 місяців тому +2

    The first full science-related video I watched after graduating form an engineering degree 3 years ago. Thanks

  • @photonic083
    @photonic083 2 роки тому +11967

    I like how when he says "people who have spent time on their phones recently knows these numbers VERY WELL" is referring to the 2048 game which was popular at the time

    • @icedrassin7265
      @icedrassin7265 2 роки тому +631

      ohh good catch I completly forgot about that game.

    • @remikarim562
      @remikarim562 2 роки тому +250

      When I heard it this reference i was like was it actually 7 years ago

    • @Dyvo84
      @Dyvo84 2 роки тому +101

      thought it was about their test grades lol

    • @icedrassin7265
      @icedrassin7265 2 роки тому +18

      @@remikarim562 I was ten and playing it at the time so no excuses for me

    • @Nefusk4n
      @Nefusk4n 2 роки тому +153

      Oh I thought it was talking about how the storage for phones is a result of a power of two.

  • @Just-View
    @Just-View 4 роки тому +995

    2:50
    Math teacher: 1/1 = 1
    Everyone in the class: (Loses their mind)

  • @srini9653
    @srini9653 9 місяців тому +6

    For last 50 years, I'm one of those who accepted 0! is 1 *but* I now know how! I should try few other various based on those patterns. Nice one Mr.Woo. Thank you!

  • @ethanzimbra6871
    @ethanzimbra6871 2 місяці тому +2

    I love how engaged the class is! It really makes learning so much better.

  • @saltyjager8725
    @saltyjager8725 2 роки тому +4384

    Someone explained to me that the reason 0 factorial equals to one is that the idea behind factorial is how many times can a group of data be arranged in different orders. There is only one way to arrange a group of data that has 0 data in it

    • @Krab17
      @Krab17 2 роки тому +288

      That makes a lot more sense for the concept. If you can have nothing in 5 boxes (0•5). Then those boxes are also organized the same.

    • @allorfh2495
      @allorfh2495 2 роки тому +55

      the problem is: you cant arrange something that doesnt exist. for example what pumpkin did was not arrange nothing in the one and only but he arranged 5 identical boxes. thats an entirely different thing.

    • @yuewingman456
      @yuewingman456 2 роки тому +325

      @@allorfh2495 it's a thing of probability. Being unable to arrange it counts as a possible outcome, so it's 1.

    • @yuewingman456
      @yuewingman456 2 роки тому +196

      @@allorfh2495 the more mathematical explaination is to rearrange the definition formula for factorial.
      n! = n x (n-1) x (n-2) x (n-3)... x 3 x 2 x 1
      = n x (n-1)!
      So when n=1,
      1! = 1 x (1-1)!
      1 = 1 x 0!
      We know 1! Equals to 1, so by algebra, the unknown number 0! = 1

    • @GOATinPIC
      @GOATinPIC 2 роки тому +1

      @@yuewingman456 but isnt factorial outcome a value (of any number) instead of probability?

  • @JD-po3yl
    @JD-po3yl 4 роки тому +6585

    Wow, a teacher who actually *teaches*

    • @Nath_here_is_music
      @Nath_here_is_music 4 роки тому +20

      JD actually, the fonction and the Fourier proposition, works with function that repeat, so it’s quite false

    • @kakouhai7162
      @kakouhai7162 4 роки тому +3

      Whoooosh

    • @AntonChasnyk
      @AntonChasnyk 4 роки тому +3

      @@Nath_here_is_music no. Just change Fourier infinite sum to Fourier integral

    • @lightfgd
      @lightfgd 4 роки тому +18

      With a class who is actually interested!

    • @carrots50
      @carrots50 4 роки тому

      They are called "educators" :)

  • @VRDaD
    @VRDaD 9 місяців тому

    This was the most entertaining math lesson I ever listened to in my entire life.

  • @jonathanwalsh5888
    @jonathanwalsh5888 8 місяців тому

    I watched this during high school and now I'm studying engineering. Thank you so much Eddie!!!!

  • @datgamerian
    @datgamerian 4 роки тому +3877

    This man actually makes me want to have math class. Mad respect.

    • @ryanjung4416
      @ryanjung4416 4 роки тому +33

      With him at least

    • @Azakadune
      @Azakadune 4 роки тому +7

      datgamerian yea, I have had previous few teachers as engaging as this. It’s just Plowing through lesson after lesson for me...

    • @gaygoddessnamedmadoka2252
      @gaygoddessnamedmadoka2252 4 роки тому +5

      i hope so i have that kind od teacher in math class simply the best

    • @dearthofdoohickeys4703
      @dearthofdoohickeys4703 4 роки тому +9

      I was fortunate enough to have a math/science teacher like this. A good teacher really makes all the difference.

    • @vice-108
      @vice-108 4 роки тому +2

      This feeling apply when he teaches when you solves it yourself you got frustrated.

  • @soon4476
    @soon4476 4 роки тому +4923

    Me: why is 0!=1 ?
    My teacher: just accept it and don't think about it.

    • @donskiver
      @donskiver 4 роки тому +97

      What about the reality where Hitler cured cancer? The answer is don't think about it.

    • @mohammedkrombi4593
      @mohammedkrombi4593 4 роки тому +96

      Its a definition , this vid is not proof

    • @neilhassan9176
      @neilhassan9176 4 роки тому

      same here

    • @Nico-np7wu
      @Nico-np7wu 4 роки тому +38

      It's called an axiom this is something admit without having to prove it

    • @hamzaolalekan3057
      @hamzaolalekan3057 4 роки тому

      Lol

  • @dekumutant
    @dekumutant 10 місяців тому +2

    You're an Australian Icon. These lessons are fantastic.

  • @Rah11Sin
    @Rah11Sin 7 місяців тому +1

    I dropped out of Engineering in my last year and chose Real Estate as a profession, because I sucked at Maths, especially Fourier stuffs and Intergrations. I would never understand them.
    But now after 10 years, as im reaching 30s.....Im watching many Maths and Physics videos on UA-cam and Im understanding everything.
    I just wish I had teachers like him!

  • @ahmadsamadzai8255
    @ahmadsamadzai8255 Рік тому +3545

    I was a below average student with no interest in math or education until I met someone like this professor in 10th grade teaching geometry. He changed my world and everything. From 10th grade and beyond I was a straight A student graduating with high honors. Some 30 years later I still think of him and how amazing of a teacher he was. There are teachers then teachers like these. You are a gift to many sir.

    • @Hammerage1
      @Hammerage1 Рік тому +69

      These are the stories you love to hear. Thank you for sharing.

    • @wallie963
      @wallie963 Рік тому +21

      Oh my god, I have a teacher in 10th grade Geometry too and he really sparked that math passion in me again.

    • @rajeshkumarKona-pt2zk
      @rajeshkumarKona-pt2zk Рік тому +6

      Some thirty years later
      What do you mean by this???
      What his present age is??

    • @hombojimbo
      @hombojimbo Рік тому +16

      @@rajeshkumarKona-pt2zk They mean that they still remember how good their math professor was, even though it's been 30 years.

    • @cesuntbanii
      @cesuntbanii Рік тому +2

      ..... a good teacher changes destinies...

  • @Marshma808
    @Marshma808 5 років тому +3025

    this is the most engaged I've seen a math class in my whole life. lmao.

    • @AzaleaJane
      @AzaleaJane 5 років тому +38

      I know! It was almost like a town hall meeting

    • @tinyman1144
      @tinyman1144 5 років тому +30

      Math is great especially when you have a fun teacher :D

    • @blinkbubs3994
      @blinkbubs3994 5 років тому +1

      you havent seen many, then

    • @janshepard55
      @janshepard55 5 років тому

      fr its unbelievable

    • @barkatullahdurrani9018
      @barkatullahdurrani9018 5 років тому +2

      I think you wanted to say "engaging

  • @cheese90210
    @cheese90210 8 місяців тому +9

    As someone who has an engineering masters, I've always known what the values of these were and accepted it as fact without ever thinking about it. I've done the highest level of maths through secondary school and engineering maths through university. This is the first time I've seen this explained and I've had some amazing teachers in that time.
    Good job!

  • @shauryamaurya07
    @shauryamaurya07 8 місяців тому +3

    The students are probably the age of teacher now .

  • @sjt4311
    @sjt4311 2 роки тому +5380

    1) I never stopped to think about why n^0=1, I just accepted it. And the way he explained it was super interesting
    2) this guy seems like a really cool professor and I would totally love to take his class

    • @_psychopath_5623
      @_psychopath_5623 2 роки тому +41

      @brotinger_1 wow. Thats cool as well

    • @adamjohari
      @adamjohari 2 роки тому +133

      @brotinger_1 this is the correct proof in math class. But I don't think normal students would grasp this better.

    • @arzaseb
      @arzaseb 2 роки тому +6

      @brotinger_1 but can you stop spamming doe

    • @Yeetntx
      @Yeetntx 2 роки тому +13

      @@arzaseb ???

    • @markkwan4195
      @markkwan4195 2 роки тому

      i rmb my teacher gave me another explanation which is also very make sense, but now i get to know another interesting explanation haha

  • @kvekka9300
    @kvekka9300 4 роки тому +2794

    This turned out to be way cooler than I had imagined.

    • @vahidmoosavian6313
      @vahidmoosavian6313 4 роки тому +23

      His class usually does

    • @Neyobe
      @Neyobe 3 роки тому +3

      Same

    • @gabrielpiovesana1342
      @gabrielpiovesana1342 3 роки тому +2

      Hey man, Can u help me? I'm trying to learn english and i can't find a good description about the phrasal verb "Turn out", can u tell me what this mean?

    • @Neyobe
      @Neyobe 3 роки тому +3

      Gabriela Piovesana
      It’s a little hard to explain but it’s like a way to say something “in the end” like, I thought the roller coaster was scary but it TURNED OUT to be really fun”.

    • @gabrielpiovesana1342
      @gabrielpiovesana1342 3 роки тому +1

      @@Neyobe I get the picture, thanks man, can u help me in just more one thing? I'm trying to find a partner to learn english, by playing some games or just talking. Do you know some site that help me to find someone?

  • @khushibhushan2007
    @khushibhushan2007 9 місяців тому +2

    I don't know why but whatever I am currently studying (not on the phone) at tuition, the videos related to those topics are being recommended to me by the UA-cam out of nowhere. And 0! thing was revolving in my head since many days and again I got a recommended video related to it. I think UA-cam has become a mind reader. 😂😂😂

  • @user-me9hk7il5s
    @user-me9hk7il5s 9 місяців тому +2

    I can't believe I'm watching this at 4am in bed wanting to sleep, and I really enjoyed it!.

  • @ywlmni
    @ywlmni 3 роки тому +3178

    I watched “Proof 1 = 2.” And now I am getting recommended math

  • @sreeharidamodaran82
    @sreeharidamodaran82 3 роки тому +3646

    "Maths can be used to do stuff and that's nice..."
    -This Guy, possibly the coolest math teacher on earth

  • @e.telizondotavernier4232
    @e.telizondotavernier4232 8 місяців тому +2

    Ive never heard so much laughter in a math class

  • @theEx0du5
    @theEx0du5 2 місяці тому

    I do appreciate the exponent view going backwards, which was one of the ways I introduced extended exponents in my class. Doing that for factorials was something I haven't seen explicitly spelled out before. Also great was the teachers clear love for the meaning and consistency properties of math - the "it just works". This was a very nice presentation. I do wish the more general point was also presented - that empty products are always 1, just like empty sums are always 0 - and the why for that given, but obviously I have no idea what else he presented to his students after this 6 minute fragment. I just like to show kids how you can break products like Pi(0

  • @eduardobernardes4889
    @eduardobernardes4889 3 роки тому +4792

    This guy is so smart he may explain youtube's algorithm that got us here

  • @maxs713
    @maxs713 4 роки тому +5827

    Albert Einstein - "If you can't explain it simply, you don't understand it well enough."

    • @9nikolai
      @9nikolai 4 роки тому +341

      Or you don't have the vocabulary

    • @efe_fx
      @efe_fx 4 роки тому +53

      Max S wasn't it Feynman?

    • @FFeras
      @FFeras 4 роки тому +542

      “You can make-up any quote on the internet using this format” -Abraham Lincoln

    • @saptarshimitra1444
      @saptarshimitra1444 4 роки тому +19

      @@FFeras and he used the reverse format, name at beginning and quote after that

    • @K11S03C1996
      @K11S03C1996 4 роки тому +30

      It is said that Einstein wasn't a good teacher.

  • @johnnyboy2215
    @johnnyboy2215 9 місяців тому

    I really respect teachers that love and breath their work, and actually motivate and create enthusiasm in students.
    Makes learning look funny and more accessible

  • @marloeleven
    @marloeleven 11 місяців тому

    this is what I missed in school, I should've studied harder back then. I can see the enthusiasm explaining the logic of how certain ideas gets formulated. thanks for the video

  • @anathadenver6027
    @anathadenver6027 Рік тому +5255

    I find it wholesome that he lets his students breathe, like how a comedian stops talking while the audience is laughing. Some teachers hate those micro feedbacks, such as laughing and murmuring discussions. Nevertheless, both show respect as the students get silent when the teacher starts talking.

    • @CJ-mb3td
      @CJ-mb3td Рік тому +73

      Most of my classes were like this at the end and these ones were the best. You just like being there and sometimes tease the teacher while still learning.

    • @trumtrum5136
      @trumtrum5136 Рік тому +8

      Ur depressed

    • @yorkzie7593
      @yorkzie7593 Рік тому +8

      Basically an educational standup

    • @BigDansFoundry
      @BigDansFoundry Рік тому

      @Repent and believe in Jesus Christ shut up

    • @CooManTunes
      @CooManTunes Рік тому +1

      I'M SMART BECAUSE I USE UA-cam. I'M GOING TO RAISE MY KIDS TO NEVER GO TO SCHOOL. EVERYTHING CAN BE LEARNED ON UA-cam.

  • @rudra4376
    @rudra4376 4 роки тому +2223

    “4 factorial ?”
    someone in the background : eighttt

    • @joannot6706
      @joannot6706 4 роки тому +60

      I would have said that

    • @qaswara9755
      @qaswara9755 4 роки тому +2

      @@joannot6706 Same lmao

    • @jagadishkadraka8644
      @jagadishkadraka8644 4 роки тому +1

      Backbencher said that

    • @INTEL965GAMES
      @INTEL965GAMES 4 роки тому

      LMAO.........

    • @Shawn-yo4oc
      @Shawn-yo4oc 4 роки тому +1

      Bruh seriously! Makes me wonder what kinda class hes teaching. Like if you already have "3! = 6" then just multiply the product of that by 4.. didnt e en hear the right answer called out 😂

  • @dogiy1775
    @dogiy1775 8 місяців тому +1

    Science/Math really be "Fuck around and find out" but writing it down

  • @iribaaa2643
    @iribaaa2643 7 місяців тому +1

    I got my answer finally after about maybe 8 years... I was expecting something more complicated but it was kinda simple! Also I think I finally understood the application of using Fourier series. Thank you so much

  • @cuzimelliotcie9537
    @cuzimelliotcie9537 4 роки тому +1749

    he didn't know that there is 6.5 million students in his class

  • @shelbywood4185
    @shelbywood4185 Рік тому +6092

    As a teacher, that moment when the students went “Oh!” was so satisfying and empowering. He is clearly a great teacher, teaches with passion and clarity while also being flexible and having a sense of humor

    • @CooManTunes
      @CooManTunes Рік тому +13

      I'M SMART BECAUSE I USE UA-cam. I'M GOING TO RAISE MY KIDS TO NEVER GO TO SCHOOL. EVERYTHING CAN BE LEARNED ON UA-cam.

    • @iron_bucket
      @iron_bucket Рік тому +117

      @@CooManTunes ok

    • @Ok-qq3bp
      @Ok-qq3bp Рік тому +68

      Jesus, my guy coo is having so some sort of revolution

    • @guysumpthin2974
      @guysumpthin2974 Рік тому +3

      Zero of a certain quantity is equal to zero. pretending wheels are square doesn’t make them square , unless they’re low profile and you turn them 90degrees then look at them from far away (and pretend) .

    • @kalen1702
      @kalen1702 Рік тому +1

      @@CooManTunes cool

  • @eduardoligeiro2817
    @eduardoligeiro2817 10 місяців тому

    Simply awesome , Eddie. Most of the problems are solved not with hard math, but with an out-of-the box approach ... simply coming backwards, as you showed. Cool !

  • @Heniqueish
    @Heniqueish 9 місяців тому +1

    He didn't explain why 0! = 1...
    He just showed a relationship that factorials have between each other

  • @shachardahan1081
    @shachardahan1081 5 років тому +3547

    2 cubed
    someone in the background: 6

    • @mateusmoreiracardoso7896
      @mateusmoreiracardoso7896 4 роки тому +69

      I was looking for this comment 😁😁😁

    • @ansh6370
      @ansh6370 4 роки тому +77

      I won't blame him, powers are hard to calculate under 1 or 2 seconds unless you memorize them perfectly. He probably made a mistake judging by such a short time he had.

    • @andreidumitrescu9389
      @andreidumitrescu9389 4 роки тому +259

      @@ansh6370 dude we are talking about 2 cubed 😂😂😂

    • @stereolifestyle2637
      @stereolifestyle2637 4 роки тому +119

      someone imagined this "2×3" instead of this "2^3" in his mind
      quite normal mistake when brain isnt fully active and have to respond quickly (like rapid fire round coz both involved multiplication and same numbers
      edit: also 2×3 is simple than 2^3 and our brain have fundamental nature to choose easy way requires less effort..

    • @harshjain3122
      @harshjain3122 4 роки тому

      @@ansh6370 lol😂

  • @mathiaskolding3241
    @mathiaskolding3241 4 роки тому +1640

    My professor explained it in interestingly to me, he said, “the proof comes from trying to figure out how many ways there are to distribute nothing, and it turns out there’s one: you can only give nothing to no one”

    • @zeki1
      @zeki1 4 роки тому +119

      That's an interesting approach and that is what makes maths fascinating! Because there's a lot of ways to come to the same conclusion

    • @kushalbhalerao1463
      @kushalbhalerao1463 4 роки тому +16

      This way seems to be through PnC

    • @ShaileshKumar-od6nl
      @ShaileshKumar-od6nl 4 роки тому +17

      Exactly same thing was explained to me by my teacher.... And that is the best logical...

    • @internois8181
      @internois8181 4 роки тому +42

      @S GALAXY GAMER No,factorials are used in combinations . 3! Means how many ways are there to distribute 3 things to 3 people for ex,and thay is 6.U have 6 combinations on how u can distribute 3 things to 3 people.1! Is only 1 way because u have only one thing and one person.0! U have nothing and no one to give it too,and thats still called a way.U give nothing to no one which makes sense kinda

    • @deepakchermakani7542
      @deepakchermakani7542 4 роки тому +18

      very well explained, thanks. So there is only 1 way of arranging 0 marbles in a line. So 0!=1. Beautiful explanation, thanks.

  • @kylebutler1101
    @kylebutler1101 10 місяців тому +1

    I've never ever found maths entertaining. This guy is amazing. 18M views. Well deserved. Holy shit. Dude just opened up my eyes. 10!/10!

  • @user-ld2dc4vk5w
    @user-ld2dc4vk5w 11 місяців тому

    Your explanation has solved my doubts for years, thanks!

  • @bennovotny4813
    @bennovotny4813 2 роки тому +4135

    it must be so satisfying for a teacher to hear “WOOOOAAAAAAHHH” all at once from the class!😂

    • @memoirelointaine7773
      @memoirelointaine7773 2 роки тому +18

      Ikr

    • @juliangzhuo4714
      @juliangzhuo4714 Рік тому +7

      Big AGREE with you

    • @naelovesbangtan0405
      @naelovesbangtan0405 Рік тому +2

      ikr

    • @jcnbw01
      @jcnbw01 Рік тому +44

      As an educator for the past 20 years, yes, there is a sort of satisfaction with getting this sort of reaction from a class. It demonstrates engagement; But what's infinitely more satisfying is (assuming you have their complete attention and all in the same page) when you get them to truly contemplate a completely new or groundbreaking idea; something that challenges their existing notions and understanding. Even better, If you get them to start asking additional questions to process that idea, and they start asking those questions not just to you as the teacher or facilitator, but to each other in class, and then it ricochets back and forth between you and the rest of the class, those are truly the moments that make teaching satisfying, IMHO.

    • @diegesis6791
      @diegesis6791 Рік тому +4

      ​@@jcnbw01 could you please tell us about a time this happened if you can recall (edit: just out of curiosity, i've never been in a class like this and I kinda want to know more)

  • @DE_3D
    @DE_3D 3 роки тому +2240

    I’m on Christmas break I chose to watch this video willingly

    • @erikhjortsater5461
      @erikhjortsater5461 3 роки тому +10

      Same :) Albeit I’m stuck in bed due to a surgery, but I could’ve watched something else.

    • @titouande800
      @titouande800 3 роки тому +7

      I wish you a good recovery friend 🙂

    • @Kami-my1kp
      @Kami-my1kp 3 роки тому

      Me too. It sucks more because this actually taught me some math I was doing in class before break

    • @yknight25
      @yknight25 3 роки тому

      This isnt even the first time ive watched this and i chose it for fun

    • @ajseker
      @ajseker 3 роки тому

      @@erikhjortsater5461 feel better mate

  • @JackH-li8xf
    @JackH-li8xf 9 місяців тому +1

    Love this channel and all he provides. Why does this pattern not continue though into the negatives (-1!, -2!, etc) though like the proof on the right? Seems arbitrary that it didn’t break down going to 0, but does break down after that.

  • @aaminajamalkhan8993
    @aaminajamalkhan8993 4 місяці тому

    I saw your video a few years prior and then my instructor asked this question in class and it was something no one had ever studied before but thanks to this video I knew the answer!

  • @mrrandom1265
    @mrrandom1265 4 роки тому +3508

    This teacher: *explains why a0 = 1*
    My teacher: "It's 1, that's the way it is, just remember it"

    • @duonggiahan1063
      @duonggiahan1063 4 роки тому +44

      I love when they can explain a origin of things, and hate it when they tell me to remember the result because it should like that, it is superfluous to explain for a thing*blame blame blame*. I search for some of the explanations, feel I can remember better for my knowledge

    • @rajatpratap9762
      @rajatpratap9762 4 роки тому +55

      and my teacher replied because a^(x-y)=a^x/a^y...now let x=y then a^(y-y)=a^y/a^y then a^0=1

    • @karansinghbhati1997
      @karansinghbhati1997 4 роки тому +2

      🤣🤣

    • @muhammednibeen2268
      @muhammednibeen2268 4 роки тому +6

      Indian teacher for sure

    • @rikudosennin
      @rikudosennin 4 роки тому +21

      @@muhammednibeen2268 Indian teachers teach the way Rajat Pratap has said. a^0= a^(t-t) = a^t/a^t= 1.

  • @gordonramsay5356
    @gordonramsay5356 2 роки тому +4794

    Love how everyone's complimenting him and wishes he was their maths teacher when he still makes normal videos (lessons) and hardly gets any views

    • @egegoogog1608
      @egegoogog1608 2 роки тому +190

      Yeah not every math lesson can be like this or you learn nothing

    • @dank_lord
      @dank_lord 2 роки тому +90

      Thousands of views counts "barely" to you?0

    • @gordonramsay5356
      @gordonramsay5356 2 роки тому +139

      @@dank_lord no but when you compare it to the amount of views that this video accumulated, its quite small.

    • @jamesedward9306
      @jamesedward9306 2 роки тому +177

      @@gordonramsay5356 It's because people are attracted to the unusual or unintuitive. The weird, etc. Also, they want a quick fix for everything they're interested in, and videos can be highly entertaining to people if they know they'll be no quiz or test on the material. Note that Eddie's seeing the big picture calc video and his quick visual proof for the area of a circle both have over a million views. Learning basic mathematical techniques to solve problems takes work and dedicated practice time something most internet dwellers are definitely not interested in. Hence fewer views there.

    • @unclegardener
      @unclegardener 2 роки тому +3

      I watch them even though they’re like what, 5 years advanced

  • @Maya_xo12
    @Maya_xo12 7 місяців тому

    That's how our Maths teacher used to ask questions during middle school. Things we studied, but never thought how worked. He asked Why is 2⁰ = 1 and not 0, What did 0⁰ value? etc. We loved him, he teaches us Physics now but his Maths classes were the best.

  • @kulman4295
    @kulman4295 10 місяців тому

    that was a fun riddle, well presented, it is all about patterns. working with programming consistency and patterns are things you will encounter all the time, but also in other forms than maths

  • @bbccrawling6831
    @bbccrawling6831 4 роки тому +5225

    The most mysterious things in the Universe*
    1- Black-holes
    2- Bermuda triangle
    3- UA-cam algorithm

    • @misinformationspreader7092
      @misinformationspreader7092 4 роки тому +8

      Rain Flop but people have made black holes on earth

    • @swift3602
      @swift3602 4 роки тому

      BBC Crawling *universe

    • @swift3602
      @swift3602 4 роки тому +2

      Dominator Death87 but there are none currently existing

    • @bbccrawling6831
      @bbccrawling6831 4 роки тому +3

      @Rain Flop You didn't have to comment just enjoy the joke :L

    • @koumei1709
      @koumei1709 4 роки тому +4

      @Rain Flop he said world.not earth. World is bigger than our universe

  • @agjelo3178
    @agjelo3178 4 роки тому +1051

    I think all people want a teacher like him

    • @AM-cv9fi
      @AM-cv9fi 4 роки тому +5

      I know I did growing up

    • @anikmukherjee2003
      @anikmukherjee2003 4 роки тому +6

      And some want to be a teacher like him😋

  • @cosmosguy
    @cosmosguy 9 місяців тому

    Really nice. Thank you man!

  • @SivaranjanGoswami
    @SivaranjanGoswami 9 місяців тому

    I wish I had a math teacher like him ❤

  • @HatakeHyei
    @HatakeHyei 4 роки тому +1287

    Nothing better than finding a professional who love/care for his job.
    I HATE history, because all teachers only cares about dates and names. Nothing else.
    I once had a substitute historian teacher, for like 3 months, and she would talk about the time period like she was a time traveler, explaining how the society worked back then, politics, religion, etc.
    It was the best.
    So after that i realized there's no bad disciplines, only bad teachers.
    The reason for the latter varies, as we all know...

    • @pablosamjose
      @pablosamjose 4 роки тому +68

      It’s not always up to the teachers though, you have to remember they are part of a much larger system. There are certain standards and checkpoints that have to be met in order to satisfy the state or district. This results in the bullet point learning you hate. Your substitute isn’t beholden to this because they’re just a placeholder, so they have more freedom to teach. It’s a sad state of affairs but one more complicated than teachers being shit.

    • @Abc-cd3fd
      @Abc-cd3fd 4 роки тому +4

      Exactly! I agree with you, especially with the last para

    • @yohithere6306
      @yohithere6306 4 роки тому +17

      One of my history teachers didn't care much about dates and names. His focus was mostly on the "why". His class turned out to be one of the most challenging classes in my EEE degree.

    • @junkonakamura3441
      @junkonakamura3441 4 роки тому +4

      @@yohithere6306 EEE=Eelectrical & electronics engineering? If it is, then Wow!!! It is amazing for EEE undergraduate students in your country to study history as a compulsory subject.

    • @LvLdGhost
      @LvLdGhost 4 роки тому +14

      I had a geography teacher who had traveled the world many times over. All his slides for notes he would use his own photos he had taken and give actual first hand knowledge about the place he had been. It was honestly so cool.

  • @ThomasSaar
    @ThomasSaar 2 роки тому +2991

    Took me a moment, but when he mentioned that people who have spent time on their phones recently would've seen those numbers, he was talking about 2048. Immediately brought me back to high school when everyone was playing that game in 2014.

  • @BrainiacQue
    @BrainiacQue 2 місяці тому

    Congratulations, Mr. Woo. You've earned a subscriber out of me. I have no idea why UA-cam suggested this video to me--I love Math--but I am glad it did.

  • @_burgo
    @_burgo 15 днів тому +1

    For those who are hungry for more maths, I am a college student and I don't blame HS teachers not showing the real reason why 0! = 1 because the real proof involves an indefinite integral called "gamma function", which you solve by integration by parts, and this function defines factorial for any number, even 0, even negative numbers and fractions, when you try to calculate the factorial of 0 by gamma function, the result is one, I really recommend reading about the gamma function and stuff because it is really interesting, and just a little teaser, the factorial of 1/2 is the square root of pi divided by 2 :)

  • @CtrlTheGod
    @CtrlTheGod 3 роки тому +3840

    UA-cam: *”It’s okay, they’ll watch anything during quarantine”*

    • @proxy90909
      @proxy90909 3 роки тому +57

      Jokes on youtube I actually like math facts

    • @Neyobe
      @Neyobe 3 роки тому +23

      Jokes on UA-cam I was curious

    • @wardenclyffepark486
      @wardenclyffepark486 3 роки тому +19

      well do you regret it ? because I, don't 😁

    • @krishanubanik368
      @krishanubanik368 3 роки тому +7

      But it was fabulous 😍

    • @jannatulferdous1503
      @jannatulferdous1503 3 роки тому +7

      Jokes on youtube, whatever this is, is beautiful and a piece of art.

  • @vladimirjosh6575
    @vladimirjosh6575 5 років тому +2513

    Admitting *_He's tons better than my maths teacher!_*

    • @scusachannel1682
      @scusachannel1682 5 років тому +20

      My maths teachers have all been awful in the past 3 years. As a result, everyone in my class hates maths.

    • @MrE_
      @MrE_ 5 років тому +11

      Right?! Here I am with a guy who flips through curriculum-made PowerPoints for an hour and a half, wishing I could have a good teacher like this guy

    • @rohanbhuckory1297
      @rohanbhuckory1297 5 років тому +2

      Rip same

    • @unogal5906
      @unogal5906 5 років тому +2

      You don't actually need a good math teacher to do well in math.

    • @mikeries8549
      @mikeries8549 5 років тому +1

      In college you get to choose which professors class you sign up for.
      If you're smart you figure out which ones are bad and avoid them. Once you're taking 300 level classes TRY TO FIND ONE THAT USES ENGLISH AS A FIRST LANGUAGE.
      try.

  • @SagarRavrane
    @SagarRavrane 10 місяців тому +19

    We definitely need more teachers like these to ensure that humanity remains curious! 😇

  • @michaelchef
    @michaelchef Місяць тому

    Remember seeing this in my engineering statistics course. This was a great refresher

  • @AlexanderWebster_
    @AlexanderWebster_ 2 роки тому +1704

    Lol I love how engineers and mathematicians see the world so differently. Mathmeticians appreciate the intricacies of numbers for what they are and all of their complexity. Engineers appreciate numbers for what they can do for them despite their complexity.

    • @wafikiri_
      @wafikiri_ 2 роки тому +34

      Mathematics, as a discipline, is one of the various conceptual worlds. It resides in the minds of people. Language enables sharing and discussing mathematics, so it becomes ever refined. But the primary source of mathematical ideas is the physical universe, for its natural laws are constrained by mathematics, not the discipline but the underlying pattern or subset of the whole of idealized relationships, known or unknown.
      An example of a primary source of mathematics: Natural numbers relate to collections of individual objects, they are the collections' cardinals. An example of a non-physical application of mathematics: five mathematical theorems, three dreams, eight contradictions, four myths.
      Engineers constantly deal with the physical world, it's their job. For them, the relationships between mathematics and its primary source, the real world, is fundamental.
      Mathematicians constantly deal with the discipline of mathematics, of course. They try to squeeze the most of what they best know, and so, mathematics expands.
      Philosophers also appreciate mathematics. Bertrand Russell's paradox of "the sets that do not contain themselves...." is an example.
      Artists and mathematics? Of course! Tilings are an example. Fractals, another.
      So, who do not love mathematics? Those who heard that mathematics was something hard, ugly and unworthy of trying. Those who prefer sports to thinking. And so on....
      My daughter is 35. I have been teaching her mathematics for a whole year, for she asked me to. She was not too comfortable with what she had been taught at school two decades earlier. She takes free time for mathematics whenever she can, even though she has to work hard most of the day for a living. I am very proud of her.

    • @swimfan752
      @swimfan752 2 роки тому +17

      Engineer and mathematician aren’t some mutually exclusive grouping. Im both an engineer and a mathematician

    • @licchaavi
      @licchaavi 2 роки тому +4

      @@wafikiri_ wow

    • @thedatatreader
      @thedatatreader 2 роки тому +10

      @@wafikiri_ There is yet another subset of people who hate mathematics, although unintentionally; those who were never taught about the underlying pattern because their teachers were unwilling or unable to explain the context of the lesson and simply told them to copy the formulas.
      I wish I had a teacher like this who could explain how mathematics can be a creative pursuit rather than just rote memorization.

    • @danielgiovanniello7217
      @danielgiovanniello7217 2 роки тому

      Man, I don't think about it that hard. I just get my daily dose of dopamine from doing well in math.

  • @lamedev1342
    @lamedev1342 3 роки тому +2949

    Me as a programmer reading this as "why is 0 not equal to 1"

  • @favesongslist
    @favesongslist 9 місяців тому

    Eddie Woo is such a great teacher, I highly recommend his TED talk "How math is our real sixth sense"

  • @attitude3233
    @attitude3233 7 місяців тому

    Thanks for the video! ❤

  • @pranjalvw2193
    @pranjalvw2193 4 роки тому +6852

    And my teacher was like
    2 + 2 = 4
    Now you can do it by yourself, a home work for you :- Michael has 4 apples, his train is 7 minutes late, calculate the mass of the sun.

    • @ImUltimateOnion
      @ImUltimateOnion 4 роки тому +126

      SO UNDERATED COMMENT OMG LMAO

    • @muhammadomar5135
      @muhammadomar5135 4 роки тому +16

      Omg 😂😂 better truth 😂😂 xD haha

    • @harveycancino6118
      @harveycancino6118 4 роки тому +57

      nice try bro too much corny

    • @mr.devanand3369
      @mr.devanand3369 4 роки тому +8

      So true 😔

    • @fos1451
      @fos1451 4 роки тому +27

      I mean, i would like to get that as homework since you can just search thr answer on google

  • @NithinJune
    @NithinJune 4 роки тому +1696

    He knows hes succeeded when everyone shouts ohhhh.

    • @Neyobe
      @Neyobe 3 роки тому +49

      Nithin Danday that must be a golden moment when you are a teacher

    • @YoYo-nt7yf
      @YoYo-nt7yf 3 роки тому +7

      I'm also with this group.

    • @miguelpanta
      @miguelpanta 3 роки тому +4

      they trolling him

    • @jazzabighits4473
      @jazzabighits4473 3 роки тому +1

      I disagree entirely. 1! is 1, and you're saying 0! is also 1. Basically 1!=0! So you can cancel the ! from both sides and you're saying 1=0. 1 does not equal 0.

    • @m_uz1244
      @m_uz1244 3 роки тому +4

      @@jazzabighits4473 No, you can't just cancel ! from both sides. Factorial is a complex function and ! is just shorthand for it, it doesn't work that way.

  • @sabyasachee9044
    @sabyasachee9044 21 день тому

    Wish I had teachers like you in my College days ❤. Respect 🤘🏻🤘🏻🙏🏻

  • @AlmondAxis987
    @AlmondAxis987 9 місяців тому +1

    As a fellow Maths enjoyer, I NEED this maths teacher

  • @sin21ful
    @sin21ful 5 років тому +1603

    I went through all of high school without ever being taught what a “factorial” was.
    I’m not joking.

    • @mikeries8549
      @mikeries8549 5 років тому +14

      Hahaha...I get the joke anyway.
      Ahahaha.
      Funny. Got more?

    • @kevinakbar1681
      @kevinakbar1681 5 років тому +31

      Well maybe you wore a headphones or somethin?
      How did you graduate m8

    • @sin21ful
      @sin21ful 5 років тому +73

      kevin akbar No, it wasn’t in the curriculum. I graduated perfectly fine.

    • @mryup6100
      @mryup6100 5 років тому +4

      @@sin21ful Same, It seems easy though.

    • @Erik20766
      @Erik20766 5 років тому +16

      MR YUP all math up to and including some university level math is easy if you learn it in the right order

  • @rainingsnake8422
    @rainingsnake8422 4 роки тому +1082

    Me: "alright I'm sleeping early tonight"
    Also me at 2am: watching this because UA-cam Recommendations

  • @thomascohen9924
    @thomascohen9924 2 місяці тому

    Eddie Woo, you are an amazing teacher (and I taught for nearly 30 years!). I wish you would have been my math teacher!

  • @mediaguardian
    @mediaguardian 5 місяців тому +1

    For exponents of like bases you simply subtract values when dividing. so a^10/a^3 = a^7, but a^10/a^10 = 1 for obvious reasons. Therefore, a^(10-10) = a^0 must also equal 1.

  • @amruthvarsh832
    @amruthvarsh832 4 роки тому +411

    3:09
    Teacher: this is what makes maths * pause *
    Student : beautiful
    Teacher * continues * interesting to me

  • @LiteraryOG
    @LiteraryOG 5 років тому +1714

    If i had you as my maths teacher my doggy wouldn’t have eaten my homework that often.

    • @ajaydholpuriya4282
      @ajaydholpuriya4282 5 років тому +5

      Lol

    • @john-paulmathieu7195
      @john-paulmathieu7195 5 років тому +23

      I used to say the same thing, and I ended up becoming a math teacher. I'm very similar to him by showing why things are, energetic, and breaking things down to simple levels. In my classes I have students that have gotten D's and F's in math for the last few years saying they've never understood math so much and about half the class say math has never come so easy. Despite that, there are also many kids that prefer to just zone out, not take notes, not attempt any work, prefer to try get on their phones, or try to just do anything other than math. All these kids say it's super hard... Anyway, my point is no matter how great the math teacher is, there are always students that will ignore instruction.

    • @sebastianblome7138
      @sebastianblome7138 5 років тому +24

      Because he would have eaten the dog

    • @fsyang0589
      @fsyang0589 5 років тому +3

      Sebbelito 69 hah

    • @GGamerable
      @GGamerable 5 років тому +1

      @@john-paulmathieu7195 how self reflected you are!

  • @xhkaaaa
    @xhkaaaa 7 місяців тому

    I hope every math teacher turns into him

  • @srr1463
    @srr1463 11 місяців тому +1

    4:10 Fourier series applies to any periodic function, not just to wave functions. A ‘wave functions’ has nothing to with it. Not sure this guy knows what a wave function is ( see QM)

  • @NithinJune
    @NithinJune 4 роки тому +501

    1:22 I just realized he made a 2048 reference, also 2048 was released almost exactly a month before this video.

    • @Bubbles-cd9qo
      @Bubbles-cd9qo 4 роки тому +28

      Oh so that's what it was. I get it now lol

    • @Roman.Joshua
      @Roman.Joshua 3 роки тому +2

      his moves look like a "K" keta alien feels like.

    • @finnwarner4036
      @finnwarner4036 3 роки тому +4

      Omg wow that’s so funny, I’ve been playing 2048 soo much recently 😂

    • @coyraig8332
      @coyraig8332 3 роки тому +5

      That explains why he said everyone was familiar with that sequence

    • @saidtaliby
      @saidtaliby 3 роки тому +3

      @@coyraig8332 no, these numbers are familiar because they're used for RAM and Storage specs.

  • @patana256
    @patana256 4 роки тому +3885

    Fun Fact: You didn't search for this.

    • @wubbalubbasuba
      @wubbalubbasuba 4 роки тому +70

      Lmao i did

    • @prab231
      @prab231 4 роки тому +34

      I did

    • @vishnuvr4706
      @vishnuvr4706 4 роки тому +76

      Fun fact : You have copied this comment from someone else.

    • @patana256
      @patana256 4 роки тому +6

      @@vishnuvr4706 ;)

    • @sleeves09
      @sleeves09 4 роки тому +3

      Recommended by YT, Idk why.

  • @OldScratch81
    @OldScratch81 11 місяців тому +2

    9 years ago ,I wouldn’t have appreciated this as much as i do now👍

  • @subzero.cuber47
    @subzero.cuber47 4 місяці тому +1

    When everyone just said "Accept it-" 😂