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

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  • Опубліковано 24 лис 2024

КОМЕНТАРІ • 12 тис.

  • @TEDEd
    @TEDEd  6 років тому +3245

    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 років тому +22

      0 Divided by 0 = 0

    • @Roach-zt6fc
      @Roach-zt6fc 6 років тому +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 років тому +7

      What about Lelouch? He got divided by Zero lol

    • @magicmailman
      @magicmailman 6 років тому +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 років тому +8

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

  • @echo.316
    @echo.316 4 роки тому +16262

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

    • @VikasPoonia
      @VikasPoonia 4 роки тому +188

      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 роки тому +220

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

    • @nigaralizada7128
      @nigaralizada7128 4 роки тому +201

      @@tiredHooman I smell JavaScript here :D

    • @gamermapper
      @gamermapper 4 роки тому +35

      "1=2" = 0

    • @OBtheamazing
      @OBtheamazing 4 роки тому +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

  • @LegendOfMario
    @LegendOfMario 5 років тому +2511

    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 років тому +73

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

    • @mohadeseh9736
      @mohadeseh9736 5 років тому +122

      Cosmic Cyborg it’s imaginary

    • @14o1chan
      @14o1chan 5 років тому +14

      @@mohadeseh9736 *got it

    • @LadyOfTheDog
      @LadyOfTheDog 5 років тому +28

      AAA WHOLLLLEE NEW WORLDDD

    • @blackimbreon9451
      @blackimbreon9451 5 років тому +6

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

  • @wukennylee4926
    @wukennylee4926 5 років тому +5905

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

    • @myheartwillstopinjoy8142
      @myheartwillstopinjoy8142 5 років тому +282

      I feel bad for ur math teacher 😂😂

    • @determineddaaf3
      @determineddaaf3 5 років тому +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 років тому +78

      No, that one discovered space.

    • @HoardEG
      @HoardEG 5 років тому +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 років тому +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 😅

  • @nuzayerov
    @nuzayerov Рік тому +117

    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 Рік тому

      so it’s ♾️

    • @simappersicrainer
      @simappersicrainer 6 місяців тому

      10 ÷ 0= 0

    • @AngIerfish
      @AngIerfish 6 місяців тому

      Why can't it be both

    • @isavenewspapers8890
      @isavenewspapers8890 6 місяців тому

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

    • @stewiesaidthat
      @stewiesaidthat 8 днів тому

      ​@@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.

  • @billyk8397
    @billyk8397 6 років тому +17880

    Yes, and the mitochondria is the powerhouse of the cell

    • @HB-jf6yq
      @HB-jf6yq 6 років тому +551

      I despise comments like yours.

    • @Inthepurpledude
      @Inthepurpledude 6 років тому +445

      Ahh. The first meme.

    • @immaderpo5218
      @immaderpo5218 6 років тому +401

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

    • @TheCocaKolya
      @TheCocaKolya 6 років тому +130

      -Why can't you?
      -yes.

    • @thecpt6265
      @thecpt6265 6 років тому +191

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

  • @jugchugeat1110
    @jugchugeat1110 4 роки тому +2405

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

  • @flicker031
    @flicker031 4 роки тому +4966

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

  • @cubicalgamer2402
    @cubicalgamer2402 2 роки тому +157

    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.

  • @runonline4065
    @runonline4065 3 роки тому +1628

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

  • @KevinTyler123
    @KevinTyler123 2 роки тому +6261

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

  • @cruithne_
    @cruithne_ 3 роки тому +3585

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

    • @ikimiyu
      @ikimiyu 3 роки тому +30

      Lol

    • @wackyanimations3326
      @wackyanimations3326 3 роки тому +124

      thats solid advice tbh

    • @---kj1rl
      @---kj1rl 3 роки тому +8

      😭

    • @kstoeb
      @kstoeb 3 роки тому +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 роки тому +29

      Mine says
      "Stick to CBSE syllabus"

  • @irm613
    @irm613 9 місяців тому +6

    If we have 1 cake and multiply it by 0, it means we made cacke disappear. If we divide 1 cake by 0 that means we divide cacke by nothing, we made division dissapear, defeating the whole purpose of dividing it. So its equasion that allways defeats its own purpose, its a non starter. Nothing happens if you divide by 0 because division can never start because it cancels itself.

  • @yuranival
    @yuranival 6 років тому +1883

    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 років тому +51

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

    • @sunflower9481
      @sunflower9481 6 років тому

      Hahaha I didn't notice

    • @J48038
      @J48038 6 років тому +16

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

    • @luciferangelica
      @luciferangelica 6 років тому +1

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

    • @ashokgite4210
      @ashokgite4210 6 років тому +2

      0 comes in set of whole number.

  • @imnotsus132
    @imnotsus132 4 роки тому +3791

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

    • @stixoimatizontas
      @stixoimatizontas 3 роки тому +149

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

    • @doriangrigorie7345
      @doriangrigorie7345 3 роки тому +151

      @@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 роки тому +6

      HI

    • @好吧-h6k
      @好吧-h6k 3 роки тому +13

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

    • @TheTowerOfRoko
      @TheTowerOfRoko 3 роки тому +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

  • @PresumedGecko20
    @PresumedGecko20 5 років тому +3720

    "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 4 роки тому +90

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

    • @alberteinsteinscousin5966
      @alberteinsteinscousin5966 4 роки тому +7

      Infinitely small

    • @fakenio242
      @fakenio242 4 роки тому +5

      sans I was late to the party

    • @CookieGal-
      @CookieGal- 4 роки тому +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 4 роки тому +12

      @@sainbaatar518 0÷0 is also impossible, btw

  • @mitragh7595
    @mitragh7595 11 місяців тому +33

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

  • @NoBudjetFilms
    @NoBudjetFilms 3 роки тому +2924

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

    • @Dilindersinghc
      @Dilindersinghc 2 роки тому +11

      😏😂👍

    • @sunshinegirl20064
      @sunshinegirl20064 2 роки тому +12

      That's hella true

    • @getsetgaming3475
      @getsetgaming3475 2 роки тому +2

      True

    • @nihalr385
      @nihalr385 2 роки тому +22

      You just had a bad teacher

    • @fede_lcc2078
      @fede_lcc2078 2 роки тому +56

      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

  • @Xoplex
    @Xoplex 3 роки тому +877

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

    • @MayMayCentre
      @MayMayCentre 2 роки тому +58

      In our world of numbers.

    • @monsieurandiant
      @monsieurandiant 2 роки тому +45

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

    • @barelyprotestant5365
      @barelyprotestant5365 2 роки тому +1

      @@MayMayCentre that presupposes a particular philosophy of numbers.

    • @czyruszamora5309
      @czyruszamora5309 2 роки тому +4

      I get that...true is not wrong

    • @thatrandomdev5039
      @thatrandomdev5039 2 роки тому +11

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

  • @dakshadhar2305
    @dakshadhar2305 6 років тому +8069

    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 років тому +618

      Well You are present so divide it by 1 😂😂

    • @destroyercrush1052
      @destroyercrush1052 6 років тому +157

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

    • @fadhil4008
      @fadhil4008 6 років тому +170

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

    • @fadhil4008
      @fadhil4008 6 років тому +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 років тому +48

      why there is no "HAHA" react???

  • @Kaldrin
    @Kaldrin 2 роки тому +25

    I really liked the comparison with complex numbers and the multiplication by infinity, was very cool and clear, I never looked at this angle

  • @aammirati91
    @aammirati91 3 роки тому +626

    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 роки тому +28

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

    • @luknotshiphile
      @luknotshiphile 2 роки тому +2

      That's how my Algebra teacher explained it

    • @animezoneamv9116
      @animezoneamv9116 2 роки тому +1

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

    • @luknotshiphile
      @luknotshiphile 2 роки тому +8

      @@animezoneamv9116 I'm not taking a geometry class

    • @jackmatchett1805
      @jackmatchett1805 2 роки тому +2

      so 0?

  • @ayushtiwari8190
    @ayushtiwari8190 3 роки тому +3002

    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

  • @kimjongun9696
    @kimjongun9696 4 роки тому +4317

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

  • @pallavij520
    @pallavij520 11 місяців тому +4

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

  • @davidbowen6892
    @davidbowen6892 4 роки тому +1649

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

    • @jpsned
      @jpsned 3 роки тому +5

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

    • @HauNguyen-ih7vk
      @HauNguyen-ih7vk 3 роки тому +13

      Infinity × 0 = 0

    • @helldronez
      @helldronez 3 роки тому +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 роки тому +12

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

    • @helldronez
      @helldronez 3 роки тому +15

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

  • @ThePinkRubber
    @ThePinkRubber 3 роки тому +2730

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

  • @agareverie
    @agareverie 5 років тому +3515

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

  • @ZeroKung2309
    @ZeroKung2309 Рік тому +5

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

    • @Bruhh221
      @Bruhh221 8 місяців тому +2

      hi :3 UwU

    • @Bruhh221
      @Bruhh221 8 місяців тому +2

      upload more video ☹️☹️☹️

  • @FBurck
    @FBurck 3 роки тому +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 роки тому

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

    • @Modi_ne_war_rukwadi_PawPaw
      @Modi_ne_war_rukwadi_PawPaw 2 роки тому +4

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

    • @Xgil2Play
      @Xgil2Play Рік тому +3

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

  • @shipweck6253
    @shipweck6253 2 роки тому +406

    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 роки тому +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 Рік тому +19

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

    • @HeyWh
      @HeyWh Рік тому +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 Рік тому +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 Рік тому +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

  • @ImTicA
    @ImTicA 21 день тому +1

    have you also thought about dividing 0 also like just not dividing it?
    what i mean is 9x3 is 3 because you divide 9, 3 times equally. 9x1 is just dividing it once so its still a whole 9. 9x0 is just not dividing it, because 0 = nothing

  • @TheThunderBat
    @TheThunderBat 5 років тому +457

    The multiplicative inverse could also be called
    “Reciprocal”

    • @AwaisKhan-mh6cd
      @AwaisKhan-mh6cd 5 років тому +7

      exactly

    • @AYUSHGAMEROFFICIAL
      @AYUSHGAMEROFFICIAL 5 років тому +3

      Both are same

    • @Anonymous-pr3gr
      @Anonymous-pr3gr 5 років тому +2

      Not could. They are equal.

    • @medielijah
      @medielijah 5 років тому +6

      Such a smartass comment...

    • @caringheart34
      @caringheart34 5 років тому +3

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

  • @huanglee3829
    @huanglee3829 3 роки тому +2551

    "Two plus two is four." - Big Shaq

  • @Table_Down_Left7377
    @Table_Down_Left7377 3 роки тому +861

    “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 роки тому +542

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

    • @thepixelatedpie
      @thepixelatedpie 3 роки тому +92

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

    • @soniahurtado9778
      @soniahurtado9778 3 роки тому +18

      1 because ur the only one left :)

    • @aisonjosephthomas6854
      @aisonjosephthomas6854 3 роки тому +36

      @@soniahurtado9778 he has no friends BRUH

    • @nickmorris6020
      @nickmorris6020 3 роки тому +8

      The universe ceases to exist

  • @VeggieBoii
    @VeggieBoii Рік тому +30

    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 Рік тому +1

      Opposite way! 0÷1=0 but 1÷0= ?

    • @VeggieBoii
      @VeggieBoii Рік тому +1

      @@sheilak173 I guess it would also be 0?

    • @sheilak173
      @sheilak173 Рік тому +1

      @@VeggieBoii pretty sure it's undefined

    • @abhilashasinha5186
      @abhilashasinha5186 Рік тому

      infinity or something else

    • @sheilak173
      @sheilak173 Рік тому

      @@abhilashasinha5186 yeah

  • @Anto01243
    @Anto01243 5 років тому +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 років тому +7

      *divide by zero, start autocombustion*
      wha-

    • @kate00san
      @kate00san 4 роки тому

      be good, start stuff like hippasus created irrational numbers.

  • @borkmaster2726
    @borkmaster2726 6 років тому +542

    "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 років тому

      Eric Lee indeed

    • @janriver
      @janriver 6 років тому

      My God Siri 😂😂😂😂

    • @emc246
      @emc246 6 років тому

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

    • @Magnezium7
      @Magnezium7 6 років тому +4

      Yes, I have 0 cookies and 0 friends

    • @yashshejwal7791
      @yashshejwal7791 6 років тому

      Asked by Ramanujan ages ago

  • @matrixphijr
    @matrixphijr 3 роки тому +721

    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 роки тому +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 роки тому +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 роки тому +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 роки тому +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 роки тому +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.

  • @MacElMasMancoDeTodos
    @MacElMasMancoDeTodos Рік тому +1

    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

  • @supercanadian0640
    @supercanadian0640 6 років тому +1538

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

    • @TheIndogamer
      @TheIndogamer 6 років тому +20

      I tried the same but I ended up making another universe

    • @Inthepurpledude
      @Inthepurpledude 6 років тому +7

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

    • @zzzzz28
      @zzzzz28 6 років тому

      Brb amma type 0÷0 in cal

    • @hafsa.boumihafsaboumi1705
      @hafsa.boumihafsaboumi1705 6 років тому

      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 років тому

      Identity of Rick Sanchez confirmed

  • @WholesomeLad
    @WholesomeLad 6 років тому +577

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

  • @akshay3078
    @akshay3078 4 роки тому +319

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

  • @skyann8976
    @skyann8976 2 роки тому +1

    I like math
    Edit: sorry about that, I was showing this to my guy that interests about zero and reasons it can't be divided
    But damn, watching this still gives me that hype feeling when I'm having math exams and all

  • @शिवोहम-श2व
    @शिवोहम-श2व 4 роки тому +872

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

  • @freddyspageticode
    @freddyspageticode 2 роки тому +130

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

  • @cup_check_official
    @cup_check_official 6 років тому +1332

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

  • @uhhddhd
    @uhhddhd 3 місяці тому +1

    In the world of math, many strange results are possible when we change the rules. But there’s one rule that most of us have been warned not to break: don't divide by zero. How can the simple combination of an everyday number and a basic operation cause such problems? Normallu, dividing bt smaller and smaller numbers gives you bigger and bigger answers. Ten divided by two is five, by one is ten, by one-millionth is 10 million, and so on. So it seems like if you divide by numbers that keep shrinking all the way down to zero, the answer will grow to the largest thing possible. Then, isn’t the answer to 10 divided by zero actually infinity? That may sound plausible. But all we really know is thar if we divide 10 by a number that tends towards zero, the answer tends towards infinity. And that’s not the same thing as saying that 10 divided by zero is equal to infinity. Why not? Well, let’s take a closer look at what divison really means. Ten divided by two could mean, “How many times must we add two together to make 10,”or, “two times what equals 10?”Dividing by a number is essentially the reverse of multiplying by it, in the following way: if we multiply number by a given number x, wen can ask if there’s a new number we can multiply by afterwards to get back to where we started. If there is, the new number is called the multiplicative inverse of x. For example, if you multiply three by two to get six, you can then multiply by ½ to get back to three. So the multiplicative inverse of two is ½, and the multiplicative inverse of 10 is ⅒. As you might notice, the product of any number and its multiplicative inverse is always one. If we want to divide by zero, we need to find its multiplicative inverse, which should be one over zero. This would have to be such a number that multiplying it by zero would give one. But because anything multiplied by zero is still zero, such a number is impossible, so zero no multiplicative inverse. Does that really settle things, though? After all, mathematicians have broken rules before. For example, for a long time, there was no such thing as taking the square root of negative numbers. But then mathematicians defined the square root of negative one as a new number called i which is a math symbol named imanginary number, opening up a whole new mathematical world of complex numbers. So if they can do that, couldn’t we just make up a new rule, say, that the symbol infinity means one over zero, and see what happens? Let's try it, imagining we don't know anything about infinity already. Based on the definition of a multiplicative inverse, zero times infinity must be equal to one. That means zero times infinity plus zero times infinity should equal two. Now, by the distributive property, the left side of the equation can be rearranged to zero plus zero times infinity. And since zero plus zero is definitely zero, that reduces down to zero times infinity. Unfortunately, we’ve already defined this as equal to one, while the other side of the equation is still telling us it’s equal to two. So 1 = 2. Oddly enough, that's not necessarily wrong; it's just not true in our normal world of numbers. There’s still a way it could by mathematically valid, if one, two, and every other number were equal to zero. But having infinity equal to zero is ultimately not all that useful to mathematicians, or anyone else. There actually is something the Riemann sphere that involves dividing by zero by a different method, but that’s a story for another day. In the meantime, dividing by zero in the most obvious way dosen’t work out so great. But that shouldn’t stop us from living dangerously and experimenting with breaking mathematical rules to see if we can invent fun, new worlds to explore.

  • @sliskekeeling
    @sliskekeeling 6 років тому +2278

    If schools taught like this we would all like math

    • @axmoylotl
      @axmoylotl 6 років тому +211

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

    • @PRubin-rh4sr
      @PRubin-rh4sr 6 років тому +70

      No. This was interesting exactly because school is boring.

    • @Peter_1986
      @Peter_1986 6 років тому +18

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

    • @8491-j1k
      @8491-j1k 6 років тому +13

      @@PRubin-rh4sr That makes no sense

    • @hugocosta6125
      @hugocosta6125 6 років тому +22

      actually you should learn this in school maybe pay attention

  • @user-qi3cp9ps6n
    @user-qi3cp9ps6n 4 роки тому +803

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

    • @chongjunxiang3002
      @chongjunxiang3002 4 роки тому +33

      Now that 2+2=5 is making sense.

    • @davidgumazon
      @davidgumazon 4 роки тому +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 роки тому

      *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 роки тому +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 роки тому +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

  • @AceW.Kermitcat
    @AceW.Kermitcat 6 років тому +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 5 років тому +131

      Hi Siri

    • @meh7272
      @meh7272 5 років тому +3

      Nah

    • @peacelover21
      @peacelover21 5 років тому +36

      We can split infinite zero cookies among infinite zero friends

    • @darkjanissary5718
      @darkjanissary5718 5 років тому +32

      It is simple:
      0 / 0 = 0

    • @funnyguy1059
      @funnyguy1059 5 років тому +7

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

  • @HikariKrome
    @HikariKrome 2 місяці тому +1

    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?"

  • @2006faiq
    @2006faiq 3 роки тому +521

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

  • @ahlpym
    @ahlpym 6 років тому +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 років тому +3

      Love that

    • @HunterZx
      @HunterZx 5 років тому +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 років тому +1

      hilarious

    • @starfire_xi
      @starfire_xi 5 років тому +1

      Lol awesome

    • @winterrain1947
      @winterrain1947 5 років тому +1

      Sounds like your calculator is related to KITT

  • @FrostyAUT
    @FrostyAUT 5 років тому +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 років тому +9

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

    • @Dayserking
      @Dayserking 5 років тому +1

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

    • @lampoilropebombs0640
      @lampoilropebombs0640 5 років тому

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

  • @grooviehoovie4179
    @grooviehoovie4179 6 місяців тому +1

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

  • @shaozhe98
    @shaozhe98 6 років тому +513

    This is quite helpful for my engineering maths

    • @krishanu1729
      @krishanu1729 6 років тому +7

      Timothy Kong oh you young soul....

    • @thepunisher1665
      @thepunisher1665 6 років тому +9

      Timothy Kong how?

    • @mmukulkhedekar4752
      @mmukulkhedekar4752 6 років тому +2

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

    • @sgaxnikolaix661
      @sgaxnikolaix661 6 років тому +1

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

    • @24canidkasi
      @24canidkasi 6 років тому +3

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

  • @Hilmemes669
    @Hilmemes669 6 років тому +207

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

    • @kappapond
      @kappapond 6 років тому +2

      Hilmi Dzul Lol

    • @diamondkane5101
      @diamondkane5101 6 років тому +23

      Don't push the glitch the universe might crash

    • @MrKahlil1001
      @MrKahlil1001 6 років тому +1

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

    • @yu5016
      @yu5016 6 років тому

      Omg I saw herobrine.

    • @minhaophu3289
      @minhaophu3289 6 років тому +1

      +Scientific Skyfire Δ did someone take your money?

  • @VikkuGoyal
    @VikkuGoyal 3 роки тому +277

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

  • @actuarialscience2283
    @actuarialscience2283 10 днів тому +1

    We do already divide by zero. In trying to get the limit as the denominator tends to 0. In some cases we are lucky.

  • @100percentSNAFU
    @100percentSNAFU 6 років тому +822

    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 років тому +74

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

    • @indomtm4x100
      @indomtm4x100 6 років тому +19

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

    • @1nkFalcon
      @1nkFalcon 6 років тому +1

      🤔

    • @adammalik6453
      @adammalik6453 6 років тому +5

      Steve infinity war

    • @shyshka_
      @shyshka_ 6 років тому +4

      Is math artificial, or part of nature?

  • @SciencewithKatie
    @SciencewithKatie 6 років тому +474

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

    • @feynstein1004
      @feynstein1004 6 років тому +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 років тому +1

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

    • @naingchanmyae
      @naingchanmyae 6 років тому +3

      Lol you are everywhere!

    • @sv67cb
      @sv67cb 6 років тому +1

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

    • @THE16THPHANTOM
      @THE16THPHANTOM 6 років тому +1

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

  • @mamacito1795
    @mamacito1795 3 роки тому +281

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

    • @ikimiyu
      @ikimiyu 3 роки тому +3

      infinity ♾

    • @MegaSolo83
      @MegaSolo83 2 роки тому +2

      😂😂

    • @FLS9083
      @FLS9083 2 роки тому

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

    • @skullmastergamer
      @skullmastergamer 2 роки тому

      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 роки тому

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

  • @schoe286
    @schoe286 Рік тому +1

    Divide by zero just means ‘don’t divide’ …it’s as simple as that

  • @stewiegriffin12341
    @stewiegriffin12341 4 роки тому +761

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

    • @Shortyshort544
      @Shortyshort544 4 роки тому +17

      I thought it was a bandage....

    • @Aorkas
      @Aorkas 4 роки тому +26

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

    • @darishdias
      @darishdias 4 роки тому +8

      Thats called detailed animation

    • @skydevxyz
      @skydevxyz 4 роки тому +17

      thats a cute little detail

    • @AB-hr4qg
      @AB-hr4qg 4 роки тому +16

      and the other scientist has hair that was divided by zero

  • @hv6244
    @hv6244 4 роки тому +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 роки тому +4

      You can divide by zero if the numerator is zero.

    • @grottjam
      @grottjam 4 роки тому

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

    • @grottjam
      @grottjam 4 роки тому

      @schmuck Norris it's 0, not 1

    • @i_like_treins3449
      @i_like_treins3449 4 роки тому

      So sad =(

    • @JackSparrow-qf4bx
      @JackSparrow-qf4bx 4 роки тому

      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

  • @sophiad1703
    @sophiad1703 3 роки тому +50

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

  • @felipe.hooper
    @felipe.hooper 2 роки тому +13

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

  • @Victor-zt4qf
    @Victor-zt4qf 6 років тому +638

    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 років тому +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 років тому +27

      It’s like saying 0x0=5

    • @googlegiggler2706
      @googlegiggler2706 6 років тому +18

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

    • @lightningstudios113
      @lightningstudios113 5 років тому +3

      0 ※ 0 = ⇔

    • @jen1376
      @jen1376 5 років тому +5

      Do not forget BODMAS.

  • @HDSQ
    @HDSQ 6 років тому +295

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

  • @alial-mofadda9582
    @alial-mofadda9582 5 років тому +1039

    In Soviet Russia, zero divides by you

    • @deepaksinghairy7885
      @deepaksinghairy7885 5 років тому +59

      Zero divides by WE

    • @glanni
      @glanni 5 років тому +38

      @@deepaksinghairy7885 it's funny because everybody gets nothing

    • @deepaksinghairy7885
      @deepaksinghairy7885 5 років тому +9

      @@glanni not everyone We gets nothing

    • @glanni
      @glanni 5 років тому +4

      @@deepaksinghairy7885 please excuse my wrong use of words 🤣

    • @deepaksinghairy7885
      @deepaksinghairy7885 5 років тому +5

      @@glanni not my instead use Our

  • @fuberlin1
    @fuberlin1 Рік тому +6

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

  • @mikgriffen
    @mikgriffen 4 роки тому +587

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

    • @Chickenpl
      @Chickenpl 4 роки тому +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 роки тому +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 роки тому +16

      With all the friends you never had

    • @jagrutivispute7600
      @jagrutivispute7600 4 роки тому +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 роки тому +7

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

  • @dangun3468
    @dangun3468 6 років тому +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 років тому +24

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

    • @walidhussain7396
      @walidhussain7396 6 років тому +6

      DanGun *Original*

    • @blueshanks1
      @blueshanks1 6 років тому +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 років тому +2

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

    • @nicwow8424
      @nicwow8424 6 років тому

      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?

  • @justsomerandomperson
    @justsomerandomperson 6 років тому +801

    *My mind hurts.*

    • @AndrewVaughanOfficial
      @AndrewVaughanOfficial 6 років тому +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 років тому +20

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

    • @AndrewVaughanOfficial
      @AndrewVaughanOfficial 6 років тому +7

      Yes.

    • @sweetheartokay69
      @sweetheartokay69 6 років тому

      Just Some Random Person mine too

    • @arandomperson7591
      @arandomperson7591 6 років тому

      I found a video that hurts your brain even more.
      ua-cam.com/video/emlcwyvnsg0/v-deo.html
      and involves 0 and infinity

  • @khushi11garg79
    @khushi11garg79 11 місяців тому

    The reason that in first equation 0*inf was 1 where as in second equation 0*inf was 2 is because the infinities in equation one and that in equation two are different
    Even if an infinty is an uncountable number, there can be bigger and smaller infinities
    If we keep the case of only one infinity this would be like
    (0*inf) + (0*inf) = 2
    2(0*inf) = 2
    (0*inf) = 2/2
    0*inf = 1

    • @AndresFirte
      @AndresFirte 11 місяців тому

      The definition of dividing a/b, is finding a number c such that b*c = a. (it’s actually a bit more complex but this definition helps for now). For example, 8/2 = 4, because 4*2 = 8.
      If you take 8/0, there’s no number that gives you 8 when multiplied by 0. So division by 0 is not defined.
      And in the context of Real numbers, infinity isn’t a number. So it’s not valid to use it. It would be like saying 5 + Blue

  • @whatsopanime
    @whatsopanime 6 років тому +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 років тому +14

      whatsopanime u copied that from siri.

    • @mixxer0512
      @mixxer0512 6 років тому +1

      it doesn't matter how many cookies I have

    • @Hyenatime
      @Hyenatime 6 років тому

      Gg no re

    • @FoxBro_101
      @FoxBro_101 6 років тому +1

      whatsopanime you got that from Siri

    • @GAMMASTAR321
      @GAMMASTAR321 6 років тому

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

  • @bunnybreaker
    @bunnybreaker 6 років тому +447

    Chuck Norris can divide by zero.

  • @Wahinies
    @Wahinies 5 днів тому

    I have always wondered why I have heard we cannot divide by zero but you have demonstrated we kind of can, just not in the scope of useable arithmetic and the whole point of mathematics is to provide useful output. Fun to posit 😊

  • @oktabramantio4709
    @oktabramantio4709 3 роки тому +67

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

    • @milandavid7223
      @milandavid7223 3 роки тому +9

      Well, approaching 0 and reaching 0 are two different things

    • @oktabramantio4709
      @oktabramantio4709 3 роки тому +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 2 роки тому

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

  • @MyRedHulk
    @MyRedHulk 5 років тому +321

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

    • @E3kstrand
      @E3kstrand 5 років тому +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 років тому +5

      You could, but you may not...

    • @callumwebster4740
      @callumwebster4740 5 років тому +1

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

    • @E3kstrand
      @E3kstrand 5 років тому +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 років тому

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

  • @Hezoyam10
    @Hezoyam10 4 роки тому +255

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

    • @TnseWlms
      @TnseWlms 4 роки тому +2

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

    • @perhapsawhitemale8144
      @perhapsawhitemale8144 3 роки тому +2

      Siri wants to know your location

  • @oshjo1
    @oshjo1 3 роки тому +434

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

    • @ikimiyu
      @ikimiyu 3 роки тому +3

      oo

    • @mr.p215
      @mr.p215 3 роки тому +23

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

    • @biglexica7339
      @biglexica7339 2 роки тому +1

      @Quinzerrak no

    • @eleSDSU
      @eleSDSU 2 роки тому +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 роки тому +1

      Logically 10/0 is 10.

  • @smithonme1888
    @smithonme1888 4 роки тому +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 роки тому +36

      Sounds like someone is learning about limits...

    • @smithonme1888
      @smithonme1888 4 роки тому +31

      Limits & L'Hopital's

    • @jaradisthegoat9805
      @jaradisthegoat9805 4 роки тому +1

      @@smithonme1888 intersting stuff

    • @weouthere6902
      @weouthere6902 3 роки тому +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 роки тому +7

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

  • @joshuapark1160
    @joshuapark1160 4 роки тому +480

    Girls: “why can’t you understand our hints!”
    Their hints:

    • @chandra_955
      @chandra_955 3 роки тому +8

      Underrated🔥

    • @perhapsawhitemale8144
      @perhapsawhitemale8144 3 роки тому +20

      Me, an intellectual:
      O H
      Y E A H
      T H I S
      I S
      B I G
      B R A I N
      T I M E
      .

    • @LazyRare
      @LazyRare 3 роки тому

      your pfp is now a fortnite skin

    • @Perririri
      @Perririri 3 роки тому +4

      Sexist

    • @garthvader9916
      @garthvader9916 3 роки тому +2

      Anyone even vaguely sympathetic to this comment can be comfortably filed under "People who should be locked into portable toilets and set on fire".

  • @PixelMind_NOT_GD
    @PixelMind_NOT_GD 4 місяці тому +1

    This video made me think of something else.
    Pick any number. Now divide it by ∞ (infinity).
    No matter what number you picked it will be split up to an infinite amount of 0’s.
    Now add those 0’s together.
    It will still equal 0 which means that “x/∞•∞=0” and that equation can be translated to “7=0”.
    But we also learned in this video that “0•∞=i”. This means that “7=0=i”.
    Weird right?

  • @JimmyGeorge1
    @JimmyGeorge1 6 років тому +313

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

    • @namankarn1504
      @namankarn1504 6 років тому +73

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

    • @ephemerys2115
      @ephemerys2115 6 років тому +19

      Naman Karn Smooth

    • @QdWp159
      @QdWp159 6 років тому

      Aaaaaand now you failed at programing too.

    • @SwordBlaze
      @SwordBlaze 6 років тому +6

      r/suicidebywords

    • @artner9624
      @artner9624 6 років тому +1

      no value means you are useless

  • @werwerwerqq2prankeo534
    @werwerwerqq2prankeo534 3 роки тому +645

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

    • @Nyante
      @Nyante 3 роки тому +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 роки тому +25

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

    • @davidchavarriamendez9091
      @davidchavarriamendez9091 3 роки тому +13

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

    • @sgr2864
      @sgr2864 3 роки тому +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 роки тому +8

      @@sgr2864 Yes but 0 is not nothing

  • @alshaaransari2821
    @alshaaransari2821 4 роки тому +269

    1=2
    No one:
    My mom: it's because of that DAMN PHONE

    • @primaabelou4695
      @primaabelou4695 4 роки тому +13

      Alshaar Ansari technically she’s right, if u watched it from ur phone :/

    • @Mayank_immortal
      @Mayank_immortal 4 роки тому

      😂😂😂😂😂😂😂😂😂😂

    • @chitramc7238
      @chitramc7238 4 роки тому +1

      @@primaabelou4695 destroyed

    • @mega_1st
      @mega_1st 4 роки тому

      because of youtube, because of TED-Ed, because of this video

  • @Inspector_Towelie
    @Inspector_Towelie 10 днів тому +1

    The fact that we can't divide by zero proves math is flawed.

  • @bakuix
    @bakuix 5 років тому +701

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

  • @leexcite2903
    @leexcite2903 3 роки тому +227

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

  • @mubarekdaha
    @mubarekdaha 6 років тому +47

    multiplicative inverse is also known as reciprocal

    • @meeraanil6083
      @meeraanil6083 6 років тому

      mubarek star Woah ! Thought that was a new word.

    • @criminaljhd5298
      @criminaljhd5298 6 років тому +1

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

    • @mubarekdaha
      @mubarekdaha 6 років тому

      same

  • @rainbowplazma3333
    @rainbowplazma3333 2 роки тому +3

    I see division as not only splitting it up but also repeated subtraction. Dividing a number by zero is asking how many zeros it takes to get that number to zero

  • @whytho4557
    @whytho4557 4 роки тому +172

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

    • @kaydenelmsly406
      @kaydenelmsly406 3 роки тому +4

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

    • @blackmalespotted
      @blackmalespotted 3 роки тому +2

      @@kaydenelmsly406 my mom

    • @lilit905
      @lilit905 2 роки тому

      why tho

  • @mr.techaky7655
    @mr.techaky7655 5 років тому +49

    2:12
    That spazzing 0 is freaking me out..

  • @azizuladnan2957
    @azizuladnan2957 6 років тому +79

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

    • @garryiglesias4074
      @garryiglesias4074 6 років тому +1

      You can enjoy the beauty of maths (and the Rieman sphere) on this vid:
      ua-cam.com/video/0z1fIsUNhO4/v-deo.html

  • @deltamensch
    @deltamensch Рік тому +1

    4:03 Well actually, It IS useful to Me. And I will EXPLAIN.

  • @levonoxelr5834
    @levonoxelr5834 5 років тому +202

    Me: it's 3AM and i gotta sleep
    UA-cam recommendation:

  • @findnuralisah
    @findnuralisah 4 роки тому +224

    5x0= 0
    5+0= 5
    5-0= 5
    5:0= error
    Student: Why?
    Teacher: ask Ted...

    • @Chickenpl
      @Chickenpl 4 роки тому +8

      5/0 means how mamy 0 you need to get 0
      5/0=5-0-0-0-0-0....
      15/5=15-5-5-5
      15/5=3

    • @jagrutivispute7600
      @jagrutivispute7600 4 роки тому +3

      @@Chickenpl hey thanks now my doubt it's clear why 5/0 or any number n, n/0 is infinite

    • @Brindlebrother
      @Brindlebrother 4 роки тому +3

      @@jagrutivispute7600 Well, but you can argue that even after you've subtracted 0 from 5 an infinite number of times, you still haven't reached zero.
      In other words, you realize that you have to do it an infinite number of times again...and then again still. And you still don't arrive at an answer.

    • @felipeclaria7487
      @felipeclaria7487 4 роки тому +1

      @@jagrutivispute7600 but n/0 is not equal to infinity...

    • @TheSecondVersion
      @TheSecondVersion 4 роки тому +2

      U can "drink a drink," but u can't
      "food a food"