Why can't you divide by zero? - TED-Ed

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  • Опубликовано: 12 янв 2025

Комментарии • 12 тыс.

  • @TEDEd
    @TEDEd  6 лет назад +3255

    Thank you so much to everyone who has joined us over on patreon.com/teded! Your support is helping bring free educational materials to curious, life-long learners around the world!
    If you're interested in getting involved in supporting our nonprofit mission, check out our Patreon page!

    • @CartoonNetworkGlitches
      @CartoonNetworkGlitches 6 лет назад +22

      0 Divided by 0 = 0

    • @Roach-zt6fc
      @Roach-zt6fc 6 лет назад +22

      In my mind, I say division is giving a fixed number of ice-cream to a fixed number of kids. If I have 10 ice-creams, and 5 kids I can give them to, how many ice-creams does one kid get? The answer is 10/5=2. However, if I have 10 ice-creams, but there aren't any kids that I can give them to, how many does one kid get? Well, we can't say zero OR 10, which means such an operation is undefined.

    • @ykrareih1559
      @ykrareih1559 6 лет назад +7

      What about Lelouch? He got divided by Zero lol

    • @magicmailman
      @magicmailman 6 лет назад +10

      If you divide by 0 it is 0 because say you have 10 cookies if you divided them between 2 people each person gets 5 well we all know that but if you have those 10 cookies to 0 people how many dose each person get well if you have no people to give them to then no one can take them there for each person gets 0 because know people can take them

    • @swallowedinthesea11
      @swallowedinthesea11 6 лет назад +8

      try: # Stay safe during the Coronavirus!
      10/0
      except:
      if ZeroDivisionError:
      print('Answer is INFINITY STONE!')

  • @echo.316
    @echo.316 5 лет назад +16616

    “1=2”
    *years of academy training wasted*

    • @VikasPoonia
      @VikasPoonia 4 года назад +192

      It is not like that. I think he is trying to say something about the function that is how a 1/x function behaves when x tends to zero.

    • @tiredHooman
      @tiredHooman 4 года назад +220

      Well
      0="0"
      0=[]
      But "0" is not equal to []

    • @nigaralizada7128
      @nigaralizada7128 4 года назад +204

      @@tiredHooman I smell JavaScript here :D

    • @gamermapper
      @gamermapper 4 года назад +36

      "1=2" = 0

    • @OBtheamazing
      @OBtheamazing 4 года назад +19

      @@tiredHooman thats due to implicit conversions.
      0="0" assumes you accidental used "0" as CHAR.
      0=[] assumes that a number 0 is the same as a NULL
      "0"=[] doesnt work because a CHAR is a string of length 1 even regardless of what is in it and 1 does not equal 0
      this of it like this
      "0" = []
      is the same as asking
      "0000000000000000000" = []
      both are false

  • @flicker031
    @flicker031 4 года назад +5094

    "Congratulations! You've earned 2nd place!"
    Me: "Let me tell you how 2=1."

  • @LegendOfMario
    @LegendOfMario 5 лет назад +2677

    2:41
    "Why can't we take the square root of negative numbers, John?"
    "Because you just can't, Emmy."
    "What if I would call it "i"?"
    "Wait, how would that even make se-"
    *A WHOLE NEW WORLD OF MATH OPENS UP*

    • @14o1chan
      @14o1chan 5 лет назад +77

      Does 'i' mean 'imaginary' or 'impossible'?

    • @mohadeseh9736
      @mohadeseh9736 5 лет назад +127

      Cosmic Cyborg it’s imaginary

    • @14o1chan
      @14o1chan 5 лет назад +15

      @@mohadeseh9736 *got it

    • @LadyOfTheDog
      @LadyOfTheDog 5 лет назад +32

      AAA WHOLLLLEE NEW WORLDDD

    • @blackimbreon9451
      @blackimbreon9451 5 лет назад +8

      Guess what the square root of -1 is the square root of -1 aka i

  • @nuzayerov
    @nuzayerov Год назад +165

    This can also very nicely be explained by using a y = 1/x graph. Where x approaching from positive x-axis to 0 gives us an Infinitely large positive number. While x approaching from negative x-axis to 0 gives us an infinitely large negative number. And 1/0 cannot be both positive and negative infinity at the same time.

    • @supertails848
      @supertails848 Год назад

      so it’s ♾️

    • @simappersicrainer
      @simappersicrainer 8 месяцев назад

      10 ÷ 0= 0

    • @AngIerfish
      @AngIerfish 7 месяцев назад +2

      Why can't it be both

    • @isavenewspapers8890
      @isavenewspapers8890 7 месяцев назад

      @@AngIerfishIf you want that, look into something called the projectively extended real line.

    • @stewiesaidthat
      @stewiesaidthat Месяц назад

      ​@@AngIerfish0 is neither negative nor positive and as such, doesn't exist as a real number when it's the denominator.
      10/0 = Error because there is nothing to share the wealth with but the wealth still exists.
      0/10 where 0 is the numerator, you wind up with 0 because there is no wealth to share.

  • @YTUSERNAMEWITHNUMBERS
    @YTUSERNAMEWITHNUMBERS 2 года назад +7037

    Math is quite interesting when you're not studying it for the test.

  • @billyk8397
    @billyk8397 6 лет назад +18028

    Yes, and the mitochondria is the powerhouse of the cell

    • @HB-jf6yq
      @HB-jf6yq 6 лет назад +551

      I despise comments like yours.

    • @Inthepurpledude
      @Inthepurpledude 6 лет назад +451

      Ahh. The first meme.

    • @immaderpo5218
      @immaderpo5218 6 лет назад +407

      Yes, and the ribosomes are the factories of the cell, generating proteins.

    • @TheCocaKolya
      @TheCocaKolya 6 лет назад +131

      -Why can't you?
      -yes.

    • @thecpt6265
      @thecpt6265 6 лет назад +193

      and the energy currency of the cells is ATP , or Adenosine Tri-Phosphate

  • @cruithne_
    @cruithne_ 3 года назад +3648

    My maths teacher has a shorter answer: "trust me, just don't"

    • @ikimiyu
      @ikimiyu 3 года назад +31

      Lol

    • @wackyanimations3326
      @wackyanimations3326 3 года назад +125

      thats solid advice tbh

    • @---kj1rl
      @---kj1rl 3 года назад +8

      😭

    • @kstoeb
      @kstoeb 3 года назад +78

      Actually as a maths-teacher myself, that's exactly what I'm doing ;-) But from now on I'm gonna show the argumentation of this video to at least my higher classes. Thanks.

    • @M1551NGN0
      @M1551NGN0 3 года назад +29

      Mine says
      "Stick to CBSE syllabus"

  • @cubicalgamer2402
    @cubicalgamer2402 2 года назад +171

    I tried something similar to this. Just as sqrt(-1) = i, I defined 1/0 as o. Then, I went as far as I could trying to figure out all the properties of this new number that I could. I had to bend quite a few rules and I still ran into a bunch of contradictions. I hope that someday, as my math knowledge grows, I can make o a number.

  • @imnotsus132
    @imnotsus132 4 года назад +3818

    *Everyone gangsta till they realize the only number in the whole world that has no value is the most complicated to understand*

    • @stixoimatizontas
      @stixoimatizontas 4 года назад +151

      Because it's literally the image of a set of nothing.

    • @doriangrigorie7345
      @doriangrigorie7345 4 года назад +152

      @@stixoimatizontas and "nothing" doesnt exist, there is always something everywhere, no matter how empty the place looks. We can apply every number into our reality more or less, but not 0

    • @altheamantes2041
      @altheamantes2041 3 года назад +6

      HI

    • @好吧-h6k
      @好吧-h6k 3 года назад +13

      @@doriangrigorie7345 What if the you’re unconscious and everything around you is nothing

    • @TheTowerOfRoko
      @TheTowerOfRoko 3 года назад +11

      @@doriangrigorie7345 if you want to go from point a to b but you need to pass trought c and c is in the Middle, an the through d that is in the Middle of c-d and we apply that to our physical World, theres infinite SPACE un any direction, we are sorrounded by complete emptines
      Sorry if I have grammar errors, my native lenguage isnt english

  • @wukennylee4926
    @wukennylee4926 5 лет назад +6002

    Wait, so "MATH ERROR" isn't a number ?

    • @myheartwillstopinjoy8142
      @myheartwillstopinjoy8142 5 лет назад +285

      I feel bad for ur math teacher 😂😂

    • @determineddaaf3
      @determineddaaf3 5 лет назад +216

      Wait this is math? I thought it was History.
      So I guess there wasn't a guy called "Infinity" who discovered Amerika...

    • @hellotoaster4302
      @hellotoaster4302 5 лет назад +78

      No, that one discovered space.

    • @HoardEG
      @HoardEG 5 лет назад +118

      You've got it all wrong. Syntax error discovered the earth, and many many years in the future pi found the continent now known as "America". Before that, there was already "i"'s all over America, but they didn't count since they were technically imaginary. But nowadays, if you take 1 apple and eat 2 of it then you can take what's left (-1 apple) and use it's square root to bring back an i. However, this is highly illegal so don't credit me as the one who told you.
      (PS: MATH ERROR was the creator of earth)

    • @ArKeTiCt
      @ArKeTiCt 5 лет назад +40

      U guys remind me when i was thinking as a kid that einstein before was the president cuz he was so smart it made sense for me back in the day 😅

  • @jugchugeat1110
    @jugchugeat1110 4 года назад +2479

    This one does not spark joy:
    you cant devide by zero
    This one sparks joy:
    Zero has no multiplicative inverse

  • @jus-ta-terminator19
    @jus-ta-terminator19 2 месяца назад +13

    4:29 so we are not gonna talk about how smooth this illusion is.

  • @yuranival
    @yuranival 6 лет назад +1899

    That green-bearded man looked sad after hearing it was a story for another day. I would love to hear that story explained in such an affordable and picturesque way. Love your videos!!

    • @robertstuckey6407
      @robertstuckey6407 6 лет назад +51

      That was Bernard Riemann. He was a pretty melancholy person throughout his life. His mathematics is super neat though!

    • @sunflower9481
      @sunflower9481 6 лет назад

      Hahaha I didn't notice

    • @J48038
      @J48038 6 лет назад +16

      *all around me are familiar faces, worn out places*

    • @luciferangelica
      @luciferangelica 6 лет назад +1

      J tell it to your bunny friend, donnie darko, and get me the reimann method!

    • @ashokgite4210
      @ashokgite4210 6 лет назад +2

      0 comes in set of whole number.

  • @PresumedGecko20
    @PresumedGecko20 5 лет назад +3752

    "Imagine that you have zero cookies and you split them evenly among zero friends. How many cookies does each person get? See? It doesn't make sense. And Cookie Monster is sad that there are no cookies, and you are sad that you have no friends."
    -Siri
    September 17, 2014 - Present

    • @sainbaatar518
      @sainbaatar518 5 лет назад +91

      You are telling us about 0÷X=0 which is possible but we are talking about X÷0=Error here

    • @alberteinsteinscousin5966
      @alberteinsteinscousin5966 5 лет назад +7

      Infinitely small

    • @fakenio242
      @fakenio242 5 лет назад +5

      sans I was late to the party

    • @CookieGal-
      @CookieGal- 5 лет назад +38

      @@sainbaatar518 No he is talking about 0÷0. 0÷X is always 0. If you were to divide, say 2 by 0, you can never multiply 0 to get to 2. You would never share the 2 to anyone, and if you are inversing the multiplication to get 2 ÷ 0, you never had the 2 in the first place, so you couldn't possibly share it. You get caught in a loop, which is infinite, and I think that is why the logistical conclusion people come to when dividing by zero is infinity.

    • @PedroMartins-lv1um
      @PedroMartins-lv1um 5 лет назад +12

      @@sainbaatar518 0÷0 is also impossible, btw

  • @kimjongun9696
    @kimjongun9696 4 года назад +4344

    When you realize that "0" is a portal to two different worlds one is positive and one is negative

  • @mitragh7595
    @mitragh7595 Год назад +45

    Math teacher here! Beautifully explained. Thank you for the great work 🙏

    • @kennerpaiz8488
      @kennerpaiz8488 Месяц назад

      Nobody needed you, deserved you, or wanted you to be here!

  • @davidbowen6892
    @davidbowen6892 4 года назад +1661

    Me: *solves the question*
    The whole universe: *collapses into itself*

    • @jpsned
      @jpsned 4 года назад +5

      I've had that same notion for a long time, too. 😀

    • @HauNguyen-ih7vk
      @HauNguyen-ih7vk 3 года назад +13

      Infinity × 0 = 0

    • @hellz23456
      @hellz23456 3 года назад +28

      well it's easy actually, you cant divide 8 pizza to noone right? you can't share pizza if there's noone to share. so the answer is you can't.

    • @chalking2641
      @chalking2641 3 года назад +13

      @@hellz23456 yeah but you can eat it all by urself tho

    • @hellz23456
      @hellz23456 3 года назад +15

      @@chalking2641 thats true lmao, now i want 1 pizza damn

  • @aammirati91
    @aammirati91 3 года назад +629

    The best explanation I've seen is when you graph the negative numbers too. You'll see that at zero the y value tends toward both positive and negative infinity at the same time

    • @fahrenheit2101
      @fahrenheit2101 3 года назад +29

      Yeah I was annoyed that they didn't flag it up.

    • @lukthelukiamluk
      @lukthelukiamluk 2 года назад +2

      That's how my Algebra teacher explained it

    • @animezoneamv9116
      @animezoneamv9116 2 года назад +1

      @@lukthelukiamluk You have separate teachers for algebra and geometry?

    • @lukthelukiamluk
      @lukthelukiamluk 2 года назад +8

      @@animezoneamv9116 I'm not taking a geometry class

    • @jackmatchett1805
      @jackmatchett1805 2 года назад +2

      so 0?

  • @NoBudjetFilms
    @NoBudjetFilms 3 года назад +2933

    5 minutes of TED-Ed made math much more interesting than 13 years of school ever did.

    • @Dilindersinghc
      @Dilindersinghc 2 года назад +11

      😏😂👍

    • @sunshinegirl20064
      @sunshinegirl20064 2 года назад +12

      That's hella true

    • @getsetgaming3475
      @getsetgaming3475 2 года назад +2

      True

    • @nihalr385
      @nihalr385 2 года назад +23

      You just had a bad teacher

    • @fede_lcc2078
      @fede_lcc2078 2 года назад +57

      Getting tired of these kind of comments. The people who made this cool video also had to go through boring math and study pain before being able to distill such knowledge in a video. You can't compare formal education with entertainment videos as if one could replace the other

  • @ZeroKung2309
    @ZeroKung2309 2 года назад +8

    I enjoy watching this alot more than learning at school for exam

    • @Bruhh221
      @Bruhh221 10 месяцев назад +2

      hi :3 UwU

    • @Bruhh221
      @Bruhh221 10 месяцев назад +2

      upload more video ☹️☹️☹️

  • @runonline4065
    @runonline4065 3 года назад +1651

    ♾ next generation mathematicians breaking rule:
    The inverse of infinity is 8

    • @p3el_
      @p3el_ 3 года назад +48

      Frickin' sideway 8, always breaking everything

    • @SolarDuplosWorld
      @SolarDuplosWorld 3 года назад +7

      Sideways 8 is infinite :/

    • @mattynek2
      @mattynek2 3 года назад +13

      That's more like half of inverse

    • @bhartiyacreature4950
      @bhartiyacreature4950 3 года назад +1

      @@mattynek2 lol true

    • @BlastingRyan609
      @BlastingRyan609 3 года назад +1

      @@SolarDuplosWorld r/woooooosh

  • @ayushtiwari8190
    @ayushtiwari8190 4 года назад +3015

    Me explaining my parents after getting my maths exam result:-
    Let me explain you how 20=0 and 100=0 . Therefore we conclude that 20=100. You must be satisfied now

  • @dakshadhar2305
    @dakshadhar2305 6 лет назад +8081

    Take 10$
    Divide it with all your friends
    Since you have no friends 10÷0= infinity
    Now you have infinite money
    PROBLEM SOLVED...

    • @wx971
      @wx971 6 лет назад +617

      Well You are present so divide it by 1 😂😂

    • @destroyercrush1052
      @destroyercrush1052 6 лет назад +157

      Utsav Mishra Unless you’re inside out. You wouldn’t count as 1 but -1

    • @fadhil4008
      @fadhil4008 6 лет назад +170

      Yeah, it'll be infinite money. But it isnt your money my dude

    • @fadhil4008
      @fadhil4008 6 лет назад +90

      If you aren't present yourself. You wouldn't get the money. Bcz at first, that money is for your friends only

    • @josephmarcolopez7824
      @josephmarcolopez7824 6 лет назад +48

      why there is no "HAHA" react???

  • @mlc4050
    @mlc4050 Месяц назад +1

    I divide a birthday cake 0 times, that leaves me one whole birthday cake to eat all by myself.

  • @ThePinkRubber
    @ThePinkRubber 3 года назад +2739

    Other animal : *eat, sleep, reproduce. Try to survive.
    Humans : "what if i divide 10 with 0"

  • @agareverie
    @agareverie 5 лет назад +3522

    Nice try, but we all know
    0 ÷ 0 = ERROR

  • @pallavij520
    @pallavij520 Год назад +6

    I worked on the math work on division, multiplication and addition. 1:41 The thing is a example:12/2=6*2=12

  • @Xoplex
    @Xoplex 3 года назад +882

    “That’s not necessarily wrong, it’s just not true”

    • @MayMayCentre
      @MayMayCentre 3 года назад +58

      In our world of numbers.

    • @monsieurandiant
      @monsieurandiant 2 года назад +45

      "He is not necessarily dead, only his heart isn't beating."

    • @barelyprotestant5365
      @barelyprotestant5365 2 года назад +1

      @@MayMayCentre that presupposes a particular philosophy of numbers.

    • @czyruszamora5309
      @czyruszamora5309 2 года назад +4

      I get that...true is not wrong

    • @thatrandomdev5039
      @thatrandomdev5039 2 года назад +11

      I didn't lose, I merely failed to win!

  • @huanglee3829
    @huanglee3829 4 года назад +2551

    "Two plus two is four." - Big Shaq

  • @shipweck6253
    @shipweck6253 2 года назад +407

    Another interesting method is to use limits. If you look at a graph of 1/x, you’ll notice that the graph skyrockets up when approaching zero from the right, and plummets down when approaching zero from the left. This is because if we begin to approach zero from the right (or positive) side (by starting a 1 and then to 0.1 and then 0.01...), the answer approaches infinity. But when we approach zero from the left (or negative) side (from -1 to -0.1 to -0.01...) the answer approaches negative infinity. This means that if we were to assign a value to the graph when it reaches zero (yes I know you cannot do this), it would have to equal both positive and negative.

    • @commentarytalk1446
      @commentarytalk1446 2 года назад +15

      In a sense that is a perfectly valid result. Do mathematicians not know how to use it (I suppose: "yet")? I'm sure they will find a big use for it if not already.

    • @hstochla
      @hstochla 2 года назад +19

      Which also means that it can’t be a function, because that would leave two outputs for the same x value

    • @HeyWh
      @HeyWh Год назад +4

      Yes.
      And if you try to find a solution to
      y = 8x +1
      16x - 2y = -2
      And do the math:
      16x + -2(8x + 1) = -2
      16x + -16x + -2 = -2
      0x = -2 - -2
      0x = -2 + 2
      0x = 0
      0x/0 = 0/0
      It comes out to:
      0/0 = ∞
      So the solution is infinitely many.
      Which, in my logic, proves n/0 = ±∞
      Depending if n is -i or i where i is an rational or irrational number.

    • @HeyWh
      @HeyWh Год назад +4

      @@hstochla it can also be a solution of two linear functions.
      Where there's the same slope and y-intercept.
      y = -x
      7x + 7y = 0
      Equations ↑
      Steps↓
      7x + 7(-x) = 0
      7x - 7x = 0
      0x = 0
      0x/0 = 0/0
      Solution ↓
      0/0 = ∞
      There are infinitely many solutions to this problem.

    • @advikg
      @advikg Год назад +4

      imo i don’t think this is the best way of looking at it as 1/x^2 goes to positive infinity from both the right and left, but you still can’t divide by 0

  • @Kyubiwan
    @Kyubiwan 4 месяца назад +3

    1 told 2, and 2 told 3: "I'll race you to the top of the division tree."
    "Chicka Chicka 1, 2, 3... Will there be a division by me?"

  • @faiqfilms
    @faiqfilms 3 года назад +521

    When you have 5 minutes until your math test but you still want entertainment:

  • @FBurck
    @FBurck 3 года назад +757

    This is how my algebra Professor explained it and I still remember till to this day. Probably the best math teacher I have ever had.

    • @wren_.
      @wren_. 2 года назад

      what if we make 1/0 equal some made up number? if 1/0=U, problem solved

    • @Marendra_Nodi_IPC_420
      @Marendra_Nodi_IPC_420 2 года назад +4

      Looks like he once counted zebra. After counting all he counted Allzebra.🤣🤣🤣

    • @Xgil2Play
      @Xgil2Play Год назад +3

      Yet another example that explaining "why", is the best way to teach.

  • @WholesomeLad
    @WholesomeLad 6 лет назад +577

    *Holds up no fingers
    "How many fingers am I holding up?"
    *"infinite"*

  • @fuberlin1
    @fuberlin1 Год назад +8

    Finally! I can now in piece acceppt that this is not possible! Great explanation! Thank you!

  • @FrostyAUT
    @FrostyAUT 5 лет назад +297

    "Riemann, a mathematician so wise and so powerful, he could influence mathematics to divide ... by zero."
    "Can this power be learned?"
    "Not from this video."

    • @thoggerspass6282
      @thoggerspass6282 5 лет назад +9

      Ironic, he could save others from being divided by zero, but not himself.

    • @Dayserking
      @Dayserking 5 лет назад +1

      I know what’s troubling you, listen to me. Don’t continue to be a pawn of real numbers!

    • @lampoilropebombs0640
      @lampoilropebombs0640 5 лет назад

      I just generated the exact same thought as a 7th grader

  • @शिवोहम-श2व
    @शिवोहम-श2व 4 года назад +871

    Teacher :- How can we kill students?
    Mathematicians :- Yes

  • @borkmaster2726
    @borkmaster2726 6 лет назад +544

    "Imagine that you have 0 cookies and you split them evenly among 0 friends. How many cookies does each person get? See, it doesn't make sense. And Cookie Monster is sad that there are no cookies. And you are sad that you have no friends." - Siri, 2018

    • @sakashrimpy
      @sakashrimpy 6 лет назад

      Eric Lee indeed

    • @janriver
      @janriver 6 лет назад

      My God Siri 😂😂😂😂

    • @emc246
      @emc246 6 лет назад

      @Eric Lee But she has probably said it at least once in 2018.

    • @Magnezium7
      @Magnezium7 6 лет назад +4

      Yes, I have 0 cookies and 0 friends

    • @yashshejwal7791
      @yashshejwal7791 6 лет назад

      Asked by Ramanujan ages ago

  • @keremyildiz1819
    @keremyildiz1819 Месяц назад +3

    it becomes really complicated in 1:40

  • @TheThunderBat
    @TheThunderBat 5 лет назад +456

    The multiplicative inverse could also be called
    “Reciprocal”

    • @AwaisKhan-mh6cd
      @AwaisKhan-mh6cd 5 лет назад +7

      exactly

    • @AYUSHGAMEROFFICIAL
      @AYUSHGAMEROFFICIAL 5 лет назад +3

      Both are same

    • @Anonymous-pr3gr
      @Anonymous-pr3gr 5 лет назад +2

      Not could. They are equal.

    • @medielijah
      @medielijah 5 лет назад +6

      Such a smartass comment...

    • @caringheart34
      @caringheart34 5 лет назад +3

      I thought that the multiplicative inverse is applied to whole numbers only and reciprocals to fractions... But yeah same answer.

  • @user-qi3cp9ps6n
    @user-qi3cp9ps6n 4 года назад +803

    Maths Teacher : "So, one equals two"
    Me: "Oddly enough, that's not mathematically wrong"

    • @chongjunxiang3002
      @chongjunxiang3002 4 года назад +33

      Now that 2+2=5 is making sense.

    • @davidgumazon
      @davidgumazon 4 года назад +4

      You can divide zero by reality warping
      The boundary between zero and something is division
      By that logic you can divide a nonexistence with existence
      Existence of Boundary

    • @aklsamaan7622
      @aklsamaan7622 4 года назад

      *Listen!*
      Math is useless!
      Not everything, + × ÷ - are usefull, but things like 2x+3y=10, thats just useless, they tell us its usefull, but look at my mom and dad! They were the best in their classes and now they don't even think about math

    • @marcovoetberg6618
      @marcovoetberg6618 4 года назад +14

      @@aklsamaan7622 Except of course that it isn't. Just because you, or your mom and dad cannot find uses for math doesn't mean there aren't any. Every time you drive your car or take an airplane or use your mobile phone or use any other piece of technology you are using the fruits of math.

    • @johannoas1
      @johannoas1 4 года назад +1

      If you can explain it why it is not wrong, then maybe the teacher might give you some points.
      But usually you use the given rules of "normal" maths where it is in fact wrong for your problem

  • @Anto01243
    @Anto01243 5 лет назад +374

    -I'm gonna live dangerous from now.
    -How? Are you gonna go live alone, without anybody and be independent?
    -No, i'm gonna divide numbers by 0.
    - ...

    • @terminatroll-_-3269
      @terminatroll-_-3269 5 лет назад +7

      *divide by zero, start autocombustion*
      wha-

    • @kate00san
      @kate00san 5 лет назад

      be good, start stuff like hippasus created irrational numbers.

  • @felipe.hooper
    @felipe.hooper 2 года назад +13

    This is absolutely the best explanation that I've ever seen. Thank you very much!!

  • @freddyspageticode
    @freddyspageticode 3 года назад +130

    I like how much detail this goes into while still being concise

  • @sliskekeeling
    @sliskekeeling 6 лет назад +2281

    If schools taught like this we would all like math

    • @axmoylotl
      @axmoylotl 6 лет назад +212

      nah schools just want you to memerize stuff, they dont care if you understand any of it.

    • @PRubin-rh4sr
      @PRubin-rh4sr 6 лет назад +70

      No. This was interesting exactly because school is boring.

    • @Peter_1986
      @Peter_1986 6 лет назад +18

      +Lytebulb
      Check out the math videos by Professor Leonard, he is the best math teacher I have ever seen on RUclips - he knows exactly how to teach math, and he has a sense of humour as well.

    • @8491-j1k
      @8491-j1k 6 лет назад +13

      @@PRubin-rh4sr That makes no sense

    • @hugocosta6125
      @hugocosta6125 6 лет назад +22

      actually you should learn this in school maybe pay attention

  • @supercanadian0640
    @supercanadian0640 6 лет назад +1538

    I tried to divide by zero once
    Had to find another univerve soon after mine was destroyed

    • @TheIndogamer
      @TheIndogamer 6 лет назад +20

      I tried the same but I ended up making another universe

    • @Inthepurpledude
      @Inthepurpledude 6 лет назад +7

      Raihan Purboyo oh u must've divided by infinity then.

    • @zzzzz28
      @zzzzz28 6 лет назад

      Brb amma type 0÷0 in cal

    • @hafsa.boumihafsaboumi1705
      @hafsa.boumihafsaboumi1705 6 лет назад

      The Ace Of Spades so did I and then I tried to look for new eyes cuz mine were plucked by the teacher X)

    • @geralferald
      @geralferald 6 лет назад

      Identity of Rick Sanchez confirmed

  • @wattle213
    @wattle213 10 месяцев назад +1

    4:50 i used the function in desmos. it did not look the same.

    • @wattle213
      @wattle213 10 месяцев назад

      I meant 0:50

  • @Table_Down_Left7377
    @Table_Down_Left7377 3 года назад +862

    “If you split 0 pieces of pizza between 1 friend how much would each friend get?" 0
    “If you split 1 piece of pizza between 0 friends how much would each friend get?" Wait a sec

    • @Thel1ghtner
      @Thel1ghtner 3 года назад +542

      And If you split 1 friend between 2 people , you’ll be sent to federal prison.
      Math is hard.

    • @thepixelatedpie
      @thepixelatedpie 3 года назад +92

      @@Thel1ghtner I actually laughed out loud when I read this

    • @soniahurtado9778
      @soniahurtado9778 3 года назад +18

      1 because ur the only one left :)

    • @aisonjosephthomas6854
      @aisonjosephthomas6854 3 года назад +36

      @@soniahurtado9778 he has no friends BRUH

    • @nickmorris6020
      @nickmorris6020 3 года назад +8

      The universe ceases to exist

  • @AceW.Kermitcat
    @AceW.Kermitcat 6 лет назад +1690

    “Imagine you have zero cookies and you split them among zero friends how many cookies does each person get? See?
    It doesn’t make sense, and cookie monster is sad that there are no cookies, and you are sad because you have no friends.”

    • @teresabautista836
      @teresabautista836 6 лет назад +131

      Hi Siri

    • @meh7272
      @meh7272 6 лет назад +3

      Nah

    • @peacelover21
      @peacelover21 6 лет назад +36

      We can split infinite zero cookies among infinite zero friends

    • @darkjanissary5718
      @darkjanissary5718 6 лет назад +32

      It is simple:
      0 / 0 = 0

    • @funnyguy1059
      @funnyguy1059 6 лет назад +7

      Ace Kermitcat nice the Siri line of when you ask her what’s 0 divided by 0?

  • @matrixphijr
    @matrixphijr 3 года назад +720

    When he started talking about what multiplication and division _are,_ I thought he was going to touch on how if 2 x 5 = 10 and 10 ÷ 5 = 2, that means that if you add 2 five times, or have five groups of 2, you have 10, and if you separate 10 into 5 groups, you have 2 in each. So if you want to divide 10 by 0, that would be like saying you want to split 10 things into groups with 0 in them, and how many groups do you have? Or in reverse, how many groups of 0 things would it take to add up to 10? Well, neither one is physically possible.

    • @Llortnerof
      @Llortnerof 3 года назад +95

      Physically possible is pretty irrelevant to math, though. That's something for physicists and engineers to worry about.
      You can define a math where dividing through 0 is possible. You're probably going to have to give up some other features the more common ones have, like the distributive property or multiplicative inverses, and it might not be terribly intuitive. But it is hardly impossible.
      Dividing by 0 isn't forbidden, it's just not defined in the default math most people learn.

    • @matrixphijr
      @matrixphijr 3 года назад +21

      @@Llortnerof R/iamverysmart?
      Okay, but physicists and engineers _literally use math._ The reason math exists as it does is because of the world we live in. Universal constants in physics and astronomy were designed to allow us to mathematically calculate things we can't or don't have time or resources to study. And the results contribute to real-world projects.
      How do engineers build structures that can withstand hurricane force wind? Well, they have to calculate certain numbers and dimensions... with math. Force, vector, friction -- they're all real concepts translated into mathematical form in order to quantify them.
      Math does hold true because we made it that way. Sure, we could make it _not_ that way, but that wouldn't make much sense, literally or figuratively.
      So I really don't get the point of calling out my post by saying it's only one kind of math. Math is math. There's only one. If you wanted to "define a math" where other things are possible, that would mean changing math. Sure, you could say dividing by zero is possible, but when an apple falls from a tree, you wouldn't be able to calculate how long it takes to reach the ground.
      Also, when I say "physically possible," that's not the same as saying things are _impossible,_ just that they translate to real-world concepts. The square root of -1 is pretty impossible, but mathematicians still use it because it's useful in complex calculations. That's why there's a differentiation between those so-called "complex" numbers (some of which are real, some of which aren't) and just plain "real" numbers. Those are separate _branches_ of mathematics, if that's what you meant. I'm not really sure.

    • @Llortnerof
      @Llortnerof 3 года назад +59

      ​@@matrixphijr You're still working in the realm of physicists and engineers, not math. Math is an entirely abstract, logical construct completely detached from physical reality.
      Your physical constants are merely how these things are represented in mathematical terms. They weren't devised so math could be used on them. They are the result of using math to describe these things.
      Math holds true because it is entirely based on logical conclusions from a set of predefined axioms.
      Defining a math does not mean "changing math". It means creating a new math. The regular math you're used to still exists besides it.
      Math is essentially a language. Defining a new math is similar to creating a new dialect.
      What you're calling "seperate branches" is all first semester university math. By second year a math student will already have dealt with maths way more complex than that and may well have built a simple one themself.
      And, uh... impossible literally means "not possible". So if you're saying something is not physically possible, you're saying it is physically impossible.

    • @matrixphijr
      @matrixphijr 3 года назад +13

      @@Llortnerof It's no wonder you compare it to a language, since you're a master of twisting words.
      Look, I'm not having an argument about this. You realize you responded to a comment breaking down why 2 x 5 = 10 with a bunch of rambling nonsense about creating a new system of math where you can divide by zero? And frankly, my dude, there's a reason no one's done that already -- actually, two -- because it would have no bearing on reality and therefore no use whatsoever, and honestly, no one cares. To borrow your ideology, it would be like creating a language that no one speaks.

    • @Llortnerof
      @Llortnerof 3 года назад +44

      @@matrixphijr All you're showing here is that you have a very limited understanding of math. Everything you're claiming is pointless? Has already been done, often multiple times, and at least once simply to show that it can be done.
      Including creating new languages nobody speaks. In fact, that's kinda the default for a newly created language since it is new and thus doesn't have any speakers yet. Hasn't stopped people from not only creating a propper grammar for, but also translating Shakespeare into its original Klingon.

  • @llamalover02
    @llamalover02 Год назад +1

    I accidentally divided by zero while doing homework when exhausted. My whole notebook burst into flames.

  • @akshay3078
    @akshay3078 4 года назад +320

    4:03: It's all zero?
    Always has been

  • @ahlpym
    @ahlpym 6 лет назад +156

    I sometimes get a bit of amusement out of testing how various caculators respond to division by 0. Most just say "Error", but my favourite response has to be "MyScript Calculator", which uses hand-drawn symbols as input:
    The app recognises hand-drawn symbols and translates them to computer-written symbols, but when I write something like "0/0", it autocompletes to "0/(0+?)", as if the calculation is incomplete. Basically, the app just assumes that I'm not done writing the expression, and refuses to give any answer until I do. It makes the app seem so sassy.
    "Oh, you have a 0 in the denominator? Well, that doesn't make any sense, so you MUST not be finished writing yet. Go ahead and write some more. I'm waiting."

    • @user-ut7wi1if9q
      @user-ut7wi1if9q 5 лет назад +3

      Love that

    • @HunterZx
      @HunterZx 5 лет назад +5

      That's because of discrete maths, a computer can't divide by 0 (basically if you have the algorithm will go into an infinite loop, and the quotient will grow larger and larger until it exhausts all available memory and your computer is going to die), so basically it's a way to prevent an error and the destruction of your device haha

    • @Rick-od8oh
      @Rick-od8oh 5 лет назад +1

      hilarious

    • @starfire_xi
      @starfire_xi 5 лет назад +1

      Lol awesome

    • @winterrain1947
      @winterrain1947 5 лет назад +1

      Sounds like your calculator is related to KITT

  • @VikkuGoyal
    @VikkuGoyal 3 года назад +277

    I did this in my school days, never thought someone will represent it in such a beautiful way.

  • @VeggieBoii
    @VeggieBoii 2 года назад +31

    I always thought that any number divided by 0 would equal 0 because any number times 0 is 0 and if you swapped the numbers around to divide it you'd get 0 ÷ any number is 0

    • @sheilak173
      @sheilak173 Год назад +1

      Opposite way! 0÷1=0 but 1÷0= ?

    • @VeggieBoii
      @VeggieBoii Год назад +1

      @@sheilak173 I guess it would also be 0?

    • @sheilak173
      @sheilak173 Год назад +1

      @@VeggieBoii pretty sure it's undefined

    • @abhilashasinha5186
      @abhilashasinha5186 Год назад

      infinity or something else

    • @sheilak173
      @sheilak173 Год назад

      @@abhilashasinha5186 yeah

  • @shaozhe98
    @shaozhe98 6 лет назад +513

    This is quite helpful for my engineering maths

    • @krishanu1729
      @krishanu1729 6 лет назад +7

      Timothy Kong oh you young soul....

    • @thepunisher1665
      @thepunisher1665 6 лет назад +9

      Timothy Kong how?

    • @mmukulkhedekar4752
      @mmukulkhedekar4752 6 лет назад +2

      yeah how??...does it help???

    • @sgaxnikolaix661
      @sgaxnikolaix661 6 лет назад +1

      Same fam... 4th year Mechanical Engineer with two minors in Renewable Energy and Mathematics

    • @24canidkasi
      @24canidkasi 6 лет назад +3

      Not sure if bait, but limits of functions that divide by 0 are used everywhere in calculus, explicitly or not.

  • @sophiad1703
    @sophiad1703 3 года назад +51

    “If you divide by zero, the universe explodes”
    -my math teacher, 2021

  • @cup_check_official
    @cup_check_official 6 лет назад +1333

    because there's a fine line between a numerator and a denominator...

  • @peanutbill2.033
    @peanutbill2.033 Год назад

    ted ed: fully explains y u cant divide by zero
    me as a kid: u cant because u have nobody to share the cookies with

  • @Hilmemes669
    @Hilmemes669 6 лет назад +207

    It's just a bug. Maybe in the next universe update, we can divide by zero.

    • @kappapond
      @kappapond 6 лет назад +2

      Hilmi Dzul Lol

    • @diamondkane5101
      @diamondkane5101 6 лет назад +23

      Don't push the glitch the universe might crash

    • @KoolShadeWill
      @KoolShadeWill 6 лет назад +1

      This comment deserves like 300, 500 likes like the rest of those witty perceptions to this video

    • @yu5016
      @yu5016 6 лет назад

      Omg I saw herobrine.

    • @minhaophu3289
      @minhaophu3289 6 лет назад +1

      +Scientific Skyfire Δ did someone take your money?

  • @mamacito1795
    @mamacito1795 3 года назад +281

    "Imagine you know nothing about infinity" done and done.

    • @ikimiyu
      @ikimiyu 3 года назад +3

      infinity ♾

    • @MegaSolo83
      @MegaSolo83 2 года назад +2

      😂😂

    • @FLS9083
      @FLS9083 2 года назад

      I mean all this mess created by humans anyway universe doesn't know anything

    • @skullmastergamer
      @skullmastergamer 2 года назад

      Since the time of the ancient Greeks, the philosophical nature of infinity was the subject of many discussions among philosophers. In the 17th century, with the introduction of the infinity symbol[1] and the infinitesimal calculus, mathematicians began to work with infinite series and what some mathematicians (including l'Hôpital and Bernoulli)[2] regarded as infinitely small quantities, but infinity continued to be associated with endless processes.[3] As mathematicians struggled with the foundation of calculus, it remained unclear whether infinity could be considered as a number or magnitude and, if so, how this could be done.[1] At the end of the 19th century, Georg Cantor enlarged the mathematical study of infinity by studying infinite sets and infinite numbers, showing that they can be of various sizes.[1][4] For example, if a line is viewed as the set of all of its points, their infinite number (i.e., the cardinality of the line) is larger than the number of integers.[5] In this usage, infinity is a mathematical concept, and infinite mathematical objects can be studied, manipulated, and used just like any other mathematical object.
      The mathematical concept of infinity refines and extends the old philosophical concept, in particular by introducing infinitely many different sizes of infinite sets. Among the axioms of Zermelo-Fraenkel set theory, on which most of modern mathematics can be developed, is the axiom of infinity, which guarantees the existence of infinite sets.[1] The mathematical concept of infinity and the manipulation of infinite sets are used everywhere in mathematics, even in areas such as combinatorics that may seem to have nothing to do with them. For example, Wiles's proof of Fermat's Last Theorem implicitly relies on the existence of very large infinite sets[6] for solving a long-standing problem that is stated in terms of elementary arithmetic.
      Yes, I copied that off of Wikipedia

    • @mamacito1795
      @mamacito1795 2 года назад

      @@skullmastergamer wow. Amazing that u gave me all that info and I STILL know nothing about infinity

  • @HDSQ
    @HDSQ 6 лет назад +294

    Suggested video title:
    How to disrupt the space-time continuum

  • @evankim2095
    @evankim2095 25 дней назад

    I was always thinking about this! Thank you!

  • @SciencewithKatie
    @SciencewithKatie 6 лет назад +474

    TED-Ed - giving answers to questions I didn’t even know I wanted answered! 💛

    • @feynstein1004
      @feynstein1004 6 лет назад +2

      Lol aren't you a biologist though? I love physics and even I find math to be too abstract at times.

    • @azmeriliza3788
      @azmeriliza3788 6 лет назад +1

      Science with Katie u changed your profile pic? previous one was better

    • @naingchanmyae
      @naingchanmyae 6 лет назад +3

      Lol you are everywhere!

    • @sv67cb
      @sv67cb 6 лет назад +1

      Heyyy, you again. You had 1k subs when I first saw you, now you're at 5k. Great change

    • @THE16THPHANTOM
      @THE16THPHANTOM 6 лет назад +1

      you are everywhere... there last 3 videos clicked your comments where trending at the top.

  • @100percentSNAFU
    @100percentSNAFU 6 лет назад +823

    Nothing can equal infinity, because infinity is not a number, but a concept. You can approach infinity, but you can't reach it because it isn't a real number.

    • @rixtrojan7833
      @rixtrojan7833 6 лет назад +74

      say something new, 'cause my maths teacher has told me that infinite times

    • @indomtm4x100
      @indomtm4x100 6 лет назад +19

      Infinite is a concept of how numbers wont stop or u can say forever

    • @1nkFalcon
      @1nkFalcon 6 лет назад +1

      🤔

    • @adammalik6453
      @adammalik6453 6 лет назад +5

      Steve infinity war

    • @shyshka_
      @shyshka_ 6 лет назад +4

      Is math artificial, or part of nature?

  • @alial-mofadda9582
    @alial-mofadda9582 5 лет назад +1038

    In Soviet Russia, zero divides by you

    • @deepaksinghairy7885
      @deepaksinghairy7885 5 лет назад +59

      Zero divides by WE

    • @glanni
      @glanni 5 лет назад +38

      @@deepaksinghairy7885 it's funny because everybody gets nothing

    • @deepaksinghairy7885
      @deepaksinghairy7885 5 лет назад +9

      @@glanni not everyone We gets nothing

    • @glanni
      @glanni 5 лет назад +4

      @@deepaksinghairy7885 please excuse my wrong use of words 🤣

    • @deepaksinghairy7885
      @deepaksinghairy7885 5 лет назад +5

      @@glanni not my instead use Our

  • @LionEclipse
    @LionEclipse 2 года назад +1

    my last 2 braincells, trying to cope with this vid-
    "1=2"
    *ight ima head out*

  • @mikgriffen
    @mikgriffen 4 года назад +586

    "Why can't you divide by zero?"
    Cuz then I would have to share the chocolates I never had

    • @Chickenpl
      @Chickenpl 4 года назад +46

      Wrong, there would be a chocolate but... I'll give you an eg. The chocolate has 12 pieces. 12/2 means how mamy people would have 2 pieces or how mamy "2" you need to get 0. 12-2-2-2-2-2-2=0 so 12/2=6
      12/0=12-0-0-0-0-0... You will never Reach 0. Everybody has 0 pieces and you still have 12 pieces of chocolate ;)

    • @mikgriffen
      @mikgriffen 4 года назад +19

      @@Chickenpl Thank you for your comment. Now I'll say that I'll give people chocolate and I'll mention what you said and eat it by myself right in front of them.
      _I think I'm awakening my inner demon_

    • @anatine_banana_69
      @anatine_banana_69 4 года назад +16

      With all the friends you never had

    • @jagrutivispute7600
      @jagrutivispute7600 4 года назад +5

      @@Chickenpl Thanks However Are you a teacher? Because you give such an explanation that all the doubts in particular topic is clear

    • @alt8791
      @alt8791 4 года назад +7

      Imagine you have zero cookies and zero friends to share them with...

  • @oktabramantio4709
    @oktabramantio4709 3 года назад +67

    I'm impressed that you're able talking about 1/0 without mentioning limit even once

    • @milandavid7223
      @milandavid7223 3 года назад +9

      Well, approaching 0 and reaching 0 are two different things

    • @oktabramantio4709
      @oktabramantio4709 3 года назад +7

      @@milandavid7223 yeah. But one way to define a calculation is by knowing its limit. For example lim (x->0) 1+x = 1, so we can say that 1+0=1
      But for 1/0, it has upper limit and lower limit so different (inf, and - inf) so it has no limit. Or in other word, 1/0 can NOT be defined

    • @culturedsquid8442
      @culturedsquid8442 3 года назад

      @@oktabramantio4709 I basically just commented the exact same thing bro hahahaha

  • @Victor-zt4qf
    @Victor-zt4qf 6 лет назад +637

    If you could divide by zero you could do this:
    5*0=0
    7*0=0
    5*0=7*0 |÷0
    5=7
    And that doesn't make any sense.

    • @nicholaswilliams6475
      @nicholaswilliams6475 6 лет назад +26

      Yet the video said 1=2 COULD be possible so what's so implausible about 5=7? Also, say infinity is every number all at once for the sake of argument. Then that means 5= infinity and 7 = infinity which means 5=7 is rather infinity = infinity which makes sense right?

    • @Raghad-hc7nn
      @Raghad-hc7nn 6 лет назад +27

      It’s like saying 0x0=5

    • @googlegiggler2706
      @googlegiggler2706 6 лет назад +18

      But u just divided by 0 to eliminate the 0...

    • @lightningstudios113
      @lightningstudios113 6 лет назад +3

      0 ※ 0 = ⇔

    • @jen1376
      @jen1376 6 лет назад +5

      Do not forget BODMAS.

  • @chourouk-gr9qg
    @chourouk-gr9qg 6 месяцев назад +1

    This was so helpful thank you

  • @stewiegriffin12341
    @stewiegriffin12341 4 года назад +761

    The female character has a hairpin that's shaped like the division sign.

    • @Shortyshort544
      @Shortyshort544 4 года назад +17

      I thought it was a bandage....

    • @Aorkas
      @Aorkas 4 года назад +26

      How dare you assume his/her/it/alloftheabove gender¿¿¿¿ #triggered

    • @darishdias
      @darishdias 4 года назад +8

      Thats called detailed animation

    • @skydevxyz
      @skydevxyz 4 года назад +17

      thats a cute little detail

    • @AB-hr4qg
      @AB-hr4qg 4 года назад +16

      and the other scientist has hair that was divided by zero

  • @whatsopanime
    @whatsopanime 6 лет назад +175

    Imagine you have zero cookies, and you split it evenly amongst 0 friends.. see it doesn't make sense! Now Cookie Monster is sad that he has no cookies, and you're sad that you have no friends..

    • @sgaming8450
      @sgaming8450 6 лет назад +14

      whatsopanime u copied that from siri.

    • @mixxer0512
      @mixxer0512 6 лет назад +1

      it doesn't matter how many cookies I have

    • @Hyenatime
      @Hyenatime 6 лет назад

      Gg no re

    • @FoxBro_101
      @FoxBro_101 6 лет назад +1

      whatsopanime you got that from Siri

    • @GAMMASTAR321
      @GAMMASTAR321 6 лет назад

      But why do we get 0 if any number is devided by infinity?

  • @levonoxelr5834
    @levonoxelr5834 5 лет назад +202

    Me: it's 3AM and i gotta sleep
    RUclips recommendation:

  • @FitWithCalisthenics
    @FitWithCalisthenics 10 месяцев назад +1

    The proof by contradiction was fun to watch in the end!

  • @MyRedHulk
    @MyRedHulk 5 лет назад +320

    Nobody:
    People watching this video: Can you divide by 0?
    Me, a mathematician: Well, yes, but actually no.

    • @E3kstrand
      @E3kstrand 5 лет назад +21

      You can if you go based on the pure definition of division. Example: 5/0 --> how many times can a quantity of 0 be taken away from 5 until you have a quantity of 0 and the answer to that is that you can take 0 away from 5 an infinite number of times. The only reason people have disavowed /0 is because it causes algebra to fall apart at a surface level, and the = sign loses its practical meaning without getting into some rabbit hole math.

    • @14o1chan
      @14o1chan 5 лет назад +5

      You could, but you may not...

    • @callumwebster4740
      @callumwebster4740 5 лет назад +1

      Ethan Ekstrand ‘until you have a quantity of 0’ But you will always he left with 5...

    • @E3kstrand
      @E3kstrand 5 лет назад +3

      @@callumwebster4740 Yea, you just repeated what i said. Hence you can take a quantity of 0 away from 5 infinite amount of times.

    • @Anonymous-pr3gr
      @Anonymous-pr3gr 5 лет назад

      Dude, it's limits. It's a definitive YES. You can divide by zero.

  • @leexcite2903
    @leexcite2903 3 года назад +227

    "Fun new worlds to explore"
    Ahh yes. More suffering for me and kids at school.

  • @whytho4557
    @whytho4557 4 года назад +172

    After watching this video I was able to create new universes and talk to 12 dimensional beings

    • @kaydenelmsly406
      @kaydenelmsly406 3 года назад +4

      Did you talk to being from the 12th dimension, or 12 different dimensional beings?

    • @blackmalespotted
      @blackmalespotted 3 года назад +2

      @@kaydenelmsly406 my mom

    • @lilit905
      @lilit905 3 года назад

      why tho

  • @grooviehoovie4179
    @grooviehoovie4179 8 месяцев назад +1

    also relevant is that its approaching -infinity from the other side making the graph of 1/x asymptotic at 0

  • @dangun3468
    @dangun3468 6 лет назад +447

    Imagine that you have zero cookies and you split them evenly among zero friends. How many cookies does each person get? See? It doesn’t make sense. And Cookie Monster is sad that there are no cookies, and you are sad that you have no friends

    • @voicesinhead3577
      @voicesinhead3577 6 лет назад +24

      DanGun siri will find you, and it will get everything you want wrong....

    • @walidhussain7396
      @walidhussain7396 6 лет назад +6

      DanGun *Original*

    • @blueshanks1
      @blueshanks1 6 лет назад +8

      The answer to that question is 0. But that is wrong. What you said is 0÷1/5\6 a d that would be 0. However the problem is when 0 is the denominator. Eg 3/4/7÷0=error. Its not 0

    • @nicwow8424
      @nicwow8424 6 лет назад +2

      Math isn’t supposed always supposed to make sense :P

    • @nicwow8424
      @nicwow8424 6 лет назад

      X = Number of Friends C = Number of Cookies if X = 0 and C = 0 then X/C=1. It does make sense as 0 divided by itself would equal one. Any objections?

  • @bakuix
    @bakuix 5 лет назад +701

    5 x a = 5a so 5 x 0 = 50 math has left the chat

  • @justsomerandomperson
    @justsomerandomperson 6 лет назад +801

    *My mind hurts.*

    • @AndrewVaughanOfficial
      @AndrewVaughanOfficial 6 лет назад +33

      Just Some Random Person not possible, your brain has no pain receptors. You're just formulating a negative reaction to a concept you don't want to put time to fully comprehend.

    • @maulichikoch6979
      @maulichikoch6979 6 лет назад +20

      Andrew Vaughan I think your trying to be funny but at the same time I think you're serious

    • @AndrewVaughanOfficial
      @AndrewVaughanOfficial 6 лет назад +7

      Yes.

    • @sweetheartokay69
      @sweetheartokay69 6 лет назад

      Just Some Random Person mine too

    • @arandomperson7591
      @arandomperson7591 6 лет назад

      I found a video that hurts your brain even more.
      ruclips.net/video/emlcwyvnsg0/видео.html
      and involves 0 and infinity

  • @anishashee8511
    @anishashee8511 Год назад +5

    Square root of negative 1 is still called as imaginary number 😅 Btw very interesting and informative video. And one of the best thing about TED-ED is they literally make videos on every topic whether it's science, literature, economics anything.👍💙

    • @1three7
      @1three7 Год назад

      One cool thing about i though is how it's used in quantum mechanics to describe the probabilistic wave function. It is used to get to exceptionally accurate numbers in the real world. It isn't just a weird math trick it is useful for tangible real world experiments which have given the most accurate scientific results in human history.

  • @werwerwerqq2prankeo534
    @werwerwerqq2prankeo534 3 года назад +645

    "You can't divide 0 because there is nothing."
    *The* *End*
    10/17/2021 WOW 500 LIKES??? THX!

    • @Nyante
      @Nyante 3 года назад +10

      I was just about to type this!
      Sometimes we just need to keep things simple and not complicate it like some Greek philosophy 😆

    • @hans3000
      @hans3000 3 года назад +25

      Dividing 0 =/= Dividing *by* 0...

    • @davidchavarriamendez9091
      @davidchavarriamendez9091 3 года назад +13

      Maybe true for 0÷2
      But not for 2÷0

    • @sgr2864
      @sgr2864 3 года назад +4

      @@davidchavarriamendez9091 why not, I mean we can't get 2 no matter how many times we add zero....
      Bcoz zero has no value..

    • @sepvanrooijen6069
      @sepvanrooijen6069 3 года назад +8

      @@sgr2864 Yes but 0 is not nothing

  • @karepmuu
    @karepmuu 6 лет назад +714

    _Thanos wants to know your location_

    • @omegadeadpool4987
      @omegadeadpool4987 5 лет назад +7

      No I wanna know his location

    • @kepler_22b83
      @kepler_22b83 5 лет назад +1

      say him it's arround somwhere in our visible universe... flying at unknown speeds with undefined coordinates.

    • @That_One_Guy...
      @That_One_Guy... 5 лет назад +3

      Thanos wants to divide by infinity to reduce everything to 0

    • @MyRedHulk
      @MyRedHulk 5 лет назад +2

      @dn pɐəɥ ɹnoʎ uɹnʇ Well, technically he wants to divide half the universe by 0. Wait, what?

    • @layshotterthanwasabi9560
      @layshotterthanwasabi9560 5 лет назад +1

      @dn pɐəɥ ɹnoʎ uɹnʇ *silently* oh my god

  • @hv6244
    @hv6244 4 года назад +533

    Mathematicians : Can you divide zero by zero?
    Kid: No
    Mathematicians : And do you know why?
    Kid: Because i don't know division 😞😞

    • @grottjam
      @grottjam 4 года назад +4

      You can divide by zero if the numerator is zero.

    • @grottjam
      @grottjam 4 года назад

      @schmuck Norris No // Studying to technical physics and electro technique engineer

    • @grottjam
      @grottjam 4 года назад

      @schmuck Norris it's 0, not 1

    • @i_like_treins3449
      @i_like_treins3449 4 года назад

      So sad =(

    • @JackSparrow-qf4bx
      @JackSparrow-qf4bx 4 года назад

      So Funny!See the video Of The Animated Knowledge Channel search "The Animated Knowledge Divide by Zero". I loved that video !hope you will also

  • @badarikrishnank2184
    @badarikrishnank2184 Месяц назад +1

    No but when you rearranged to add zero to zero in 3:36, you didn't add infinity to infinity. So if you add that, it becomes 2 times infinity wouldn't it?

  • @Hezoyam10
    @Hezoyam10 4 года назад +254

    "Division by zero is illegal"
    Me: *divides by 0
    *"FBI OPEN UP"*

    • @TnseWlms
      @TnseWlms 4 года назад +2

      I don't have to open up, because I'm not the FBI.

    • @perhapsawhitemale8144
      @perhapsawhitemale8144 4 года назад +2

      Siri wants to know your location

  • @mubarekdaha
    @mubarekdaha 6 лет назад +47

    multiplicative inverse is also known as reciprocal

    • @meeraanil6083
      @meeraanil6083 6 лет назад

      mubarek star Woah ! Thought that was a new word.

    • @criminaljhd5298
      @criminaljhd5298 6 лет назад +1

      The way he was saying it annoyed me it’s reciprocal

    • @mubarekdaha
      @mubarekdaha 6 лет назад

      same

  • @bubblegummwitch
    @bubblegummwitch 6 лет назад +209

    my math teacher says that if you divide by 0 you blow up the world

    • @andressstyle6390
      @andressstyle6390 6 лет назад +34

      I know, i did it once and almost destroy the universe

    • @aeroboi2862
      @aeroboi2862 6 лет назад +13

      Thanos did that

    • @chrism.1749
      @chrism.1749 6 лет назад +2

      Andress Style
      Did *you* destroy Pluto?! 😱

    • @aiyazashraf
      @aiyazashraf 6 лет назад

      No.
      Not until u start writing the answer

  • @EmadAbdalla-i9c
    @EmadAbdalla-i9c 23 дня назад

    3:55 just because two numbers are the answer to something, doesn't mean they are equat to one another, for example
    sqrt(i)=[sqrt(2)]/2+{[sqrt(2)]/2}i
    sqrt(i)=-[sqrt(2)]/2-{[sqrt(2)]/2}i
    [sqrt(2)]/2+{[sqrt(2)]/2}i≠-[sqrt(2)]/2-{[sqrt(2)]/2}i

  • @smithonme1888
    @smithonme1888 4 года назад +259

    “You can’t I divide by zero”
    My calculus teacher: “For our next unit we will be doing nothing but dividing by zero for the next two weeks.”

    • @ThisIsMego
      @ThisIsMego 4 года назад +36

      Sounds like someone is learning about limits...

    • @smithonme1888
      @smithonme1888 4 года назад +31

      Limits & L'Hopital's

    • @jaradisthegoat9805
      @jaradisthegoat9805 4 года назад +1

      @@smithonme1888 intersting stuff

    • @weouthere6902
      @weouthere6902 3 года назад +17

      You're not dividing by zero, just suuuuper small intervals that approaches zero. If you understand it, you'll realize Newton came up with a beautiful way to sidestep the law.

    • @pelinalwhitestrake3367
      @pelinalwhitestrake3367 3 года назад +7

      I have done nothing but divide by zero for 3 days.

  • @Evergreen64
    @Evergreen64 3 года назад +36

    Thanks! This is the first time I have actually heard an explanation of "why" this is other than "it's just doesn't work".

  • @azizuladnan2957
    @azizuladnan2957 6 лет назад +79

    Now I'm looking forward for 'The Riemann sphere' video :)

    • @garryiglesias4074
      @garryiglesias4074 6 лет назад +1

      You can enjoy the beauty of maths (and the Rieman sphere) on this vid:
      ruclips.net/video/0z1fIsUNhO4/видео.html

  • @MacElMasMancoDeTodos
    @MacElMasMancoDeTodos Год назад +2

    You break maths = Some great award and get taught on schools
    You break maths without being a mathematician = F in your exam.
    Well there's now rules for how to break rules, isn't it amazing

    • @tonyhorn2954
      @tonyhorn2954 12 дней назад

      Spoken like a true non-mathematician. Mathematicians do not "break the rules of maths" They extend them. Complex numbers did not break the rule of taking square roots. i is not a number. Nor is infinity. They are concepts. But they are concepts that extend mathematics and still have to abide by the same rules as regular mathematics. Mathematicians also understand that you can devise entirely new number systems that are completely different than what you are used to. But those number systems still have rules that they must follow to ensure internal consistency.

  • @JimmyGeorge1
    @JimmyGeorge1 6 лет назад +313

    ‘0’ is my favourite number; because it has no value , just Like me.

    • @namankarn1504
      @namankarn1504 6 лет назад +73

      Yet adds value to everything it goes next to...just like u :)

    • @ephemerys2115
      @ephemerys2115 6 лет назад +19

      Naman Karn Smooth

    • @QdWp159
      @QdWp159 6 лет назад

      Aaaaaand now you failed at programing too.

    • @SwordBlaze
      @SwordBlaze 6 лет назад +6

      r/suicidebywords

    • @artner9624
      @artner9624 6 лет назад +1

      no value means you are useless

  • @oshjo1
    @oshjo1 3 года назад +433

    Basically, dividing by zero it is trying to answer an non existing question.

    • @ikimiyu
      @ikimiyu 3 года назад +3

      oo

    • @mr.p215
      @mr.p215 3 года назад +23

      So an imaginary question?
      No need to throw me out,
      I will go divide myself by 0

    • @biglexica7339
      @biglexica7339 2 года назад +1

      @Quinzerrak no

    • @eleSDSU
      @eleSDSU 2 года назад +1

      I hate these myths videos that lie to people and make them more confused about maths. Dividing for zero answers the same very existing question that every other division answers.
      3/0 = undefined, not infinity and also infinity is NOT a number. You could get a defined answer but your number system would have to change a bit and loose some other properties but please understand that zero is not special, you can divide by zero and the answer under the most commonly used systems is "undefined".

    • @citoante
      @citoante 2 года назад +1

      Logically 10/0 is 10.

  • @azimapatanwala5165
    @azimapatanwala5165 4 года назад +46

    Me: Why can’t we divide by zero?
    My mom: None of your damn business!

  • @Flumby_the_creator_YT
    @Flumby_the_creator_YT 2 месяца назад +2

    2:47 if thats √-1, whats √-2?

    • @FishYellow3
      @FishYellow3 2 месяца назад +1

      It's just sqrt(2) times I, or about 1.414i

    • @gamingwithraien4639
      @gamingwithraien4639 Месяц назад

      sqrt(x * y) is sqrt(x) * sqrt(y)
      so in this case
      sqrt(-1 * 2) = sqrt(-1) * sqrt(2) = i * sqrt(2) ≈ 1.414i