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[SMART PEOPLE] Math question
s1mple | 
Germany KaSieben 
0.999999999999999999999... = 1 yes or no? justify your answer.
2017-11-23 21:30
sorry cant answer that
2017-11-23 21:30
cant tell you that
2017-11-24 15:07
#131
 | 
CIS l1nkax 
are u a rapper?
2017-11-24 18:25
cant tell you that
2017-11-24 20:16
next question
2017-11-26 14:32
cant u tell about the next question?
2017-11-26 14:42
ONLY 1=1 ;)
2017-11-25 19:25
#2
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Hungary Envo. 
basically yes, it has proof, it is so infinitely close it is basically the same
2017-11-23 21:31
#155
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Netherlands iuohtz 
its not basically the same, its the same
2017-11-26 04:50
#159
 | 
Hungary Envo. 
figure of speech, i said the same thing :)
2017-11-26 13:54
#187
 | 
Netherlands iuohtz 
no you didnt
2017-11-26 16:28
yeno
2017-11-23 21:32
noye
2017-11-24 18:06
#4
Snax | 
Russia HiddenPool 
YES
2017-11-23 21:32
no
2017-11-23 21:33
yes
2017-11-23 21:33
#7
 | 
Russia YaD_ 
Smart =/= math
2017-11-23 21:33
Dumb people won't be able to answer this question. If one can answer this question, he is considered smart imo. There is smart people who can't answer this question, sure, but I only want smart people in this thread because dumb people can't answer this question anyway.
2017-11-23 21:36
#19
 | 
Russia YaD_ 
Still math doesn't require being smart.
2017-11-23 21:37
That's why I said: If one can answer this question, he is considered smart imo. imo = in my opinion :)
2017-11-23 21:38
#22
 | 
Russia YaD_ 
OK. :)
2017-11-23 21:40
Thanks for actually understanding my point and not starting to insult me. Rare conversation on this site, thanks man :)
2017-11-23 21:42
#158
KK | 
Denmark s0denone 
lmfao ar eu germoiaps miaposd hhpuiyiuowre kas
2017-11-26 05:21
It depends on the level of math.
2017-11-26 15:39
#8
NiKo | 
Italy marxie 
3/3=1 right? Then (1/3)*3=1 but 1/3=0.3333 and 0.3333*3=0.99999 so 0.9999=1
2017-11-23 21:33
Best answer yet.
2017-11-23 21:34
#13
NiKo | 
Italy marxie 
Thank you sir
2017-11-23 21:35
#17
 | 
United States blinDi 
+1 this has always been my reasoning
2017-11-23 21:36
+1 tought about this
2017-11-23 22:34
1/3 = 0.333333333333333333 1/3*3 = 0.99999999999999999999 nt mario
2017-11-23 22:51
#85
NiKo | 
Italy marxie 
And what did i say?
2017-11-24 08:05
How does it even results in 1?
2017-11-24 14:55
#99
NiKo | 
Italy marxie 
Its ok if u cant understand how 0.99999999 is equal to 1 but its not ok if u cant understand it with a fking explanation lol
2017-11-24 15:58
1/3 = 0.(3) , not 0.33333333333333333333
2017-11-24 18:15
3/3 = 1 - yes (1/3)*3 = 0.9999 - yes Is it a proof? - no They're two different sums, it looks like you're proving it by balancing the equation, but you are not as the balancing you did is incorrect. You go 3/3 = 1 -> 3=(1*3), not 1/3 that isn't balancing that's just incorrect. So your proof looks right but isn't as you wouldn't divide 1 by the three at any stage in a correct use of algebra in this proof.
2017-11-24 18:29
#146
 | 
Europe pitol 
blyautiful answer brou
2017-11-25 19:21
#169
 | 
Greece hekzy 
No because 1/3 is irrational and can't be shown as a decimal number. Sorry. 0.99999.. is close to 1 but there is a tiny bit of error every time. The error I think is Emach and it is a mathematical constant, it's the closest real number to 0, supposedly.
2017-11-26 14:32
Well you're just reformatting the question to "does 0.333333... = 1/3" from "does 0.999999.... = 1"
2017-11-26 15:10
#172
NiKo | 
Italy marxie 
Ain’t 1/3=0.3333333?
2017-11-26 15:34
#177
 | 
Syria fakeflaggot 
no, its not
2017-11-26 15:49
#179
NiKo | 
Italy marxie 
syria education lol
2017-11-26 15:50
#180
 | 
Syria fakeflaggot 
does 0.333(cont) + 0.333(cont) + 0.333(cont) = 1? No? Then 1/3 isnt 0.333(cont) btw >fakeflaggot yes im def from syria lul
2017-11-26 15:56
#181
NiKo | 
Italy marxie 
try using ur calculator sometimes xd
2017-11-26 15:57
#183
 | 
Syria fakeflaggot 
jsut did 0.3333 * 3 = 1 0.3333 * 2 + 0.333 = 0.9999
2017-11-26 15:59
#184
NiKo | 
Italy marxie 
thank you for confirming my teory, 0.3333*3=1 this is na equation so if i divide both member for 3 i get 0.33333=1/3. easy math bro
2017-11-26 16:00
#185
 | 
Syria fakeflaggot 
yes
2017-11-26 16:03
#186
NiKo | 
Italy marxie 
Cuz u cant tipe infinite 3s in ur calculator dumbass, just try this, tipe 1/3 and press = , then do this Ans*2+ans and you will get 1
2017-11-26 16:03
[SMART PEOPLE] Math question 1 = 1 yes or no? justify your answer.
2017-11-23 21:34
no cuz 1 = 21
2017-11-23 21:35
#18
 | 
United States blinDi 
+1
2017-11-23 21:45
yes, cuz 1 == 1
2017-11-23 21:35
#106
 | 
Germany AdiZen 
no cuz 1 is 2+2-3
2017-11-24 17:44
#11
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Kazakhstan Tarob 
Always hate 0,999 1 is Cool
2017-11-23 21:34
Lim x approaches 1. So 0.9999999 approaches 1 but never 1
2017-11-23 21:35
exactly
2017-11-23 21:52
+1
2017-11-24 08:12
As #8 said yes, cause 3/3 = 1 but 1/3 is .3333... * 3 is .9999..., also works for multiples, such as 9/9 = 1, but 1/9 is .1111... * 9 is .9999...
2017-11-23 21:38
#23
Ukraine ISK_ 
let's do quick maffs right here 0.999999999999999999999999999999999999999 = 0.999999999999999999999999999999999999999 1 = 1 /CLOSED
2017-11-23 21:42
Yeah but where is the context between 0.99999999999999999999999 and 1 in your argument? You could also have said: -2.333333333333333333333333333333333333 = -2.333333333333333333333333333333333 1 = 1 You know?
2017-11-23 21:43
0.99999... is 0.99999... 1 is 1 you cant say 1=0.9999... u can aproximate that number to 1
2017-11-23 21:42
+1 how the fuck can someone not realize this xd, people are thinking it's a trick question except it isn't
2017-11-23 21:45
read #8, if you understand that you might aswell understand #27 #8 is the easy justification, #27 is the mathmatical proper justification
2017-11-23 21:47
No it simply isn't, if you ACTUALLY read the question word by word, you'll understand that it's impossible to say that 0.99999 and 1 are the same thing, mathematics only approximate numbers to make calculations MUCH easier (otherwise they wouldn't be possible), but you CANNOT say that they are the same.
2017-11-23 21:59
I guess you didn't understand #27 then. Sorry for you.
2017-11-23 22:01
You're the one who apparently didn't study logic, this is basic logics, you can't possibly say that they're the exact same, if they were you would represent them as the same and there would only be exact numbers in the world
2017-11-23 22:03
Try to understand the concept of geometric sequences. Mathmaticians are the kind of people who think the most logically out of anyone (except IT dudes maybe). Geometric sequences proof that 0.9999999999 = 1 and it is accepted by any mathmatician. I won't reply any further, this has nothing to do with ignorance or so, there is just no denial in geometric sequences. I hope you will get the hang of it. Have a nice day :)
2017-11-23 22:06
geometric sequences are supposed to make calculations easier while also being accurate aswell, this has nothing to do with geometric sequences, you just can't think outside the box, just because you think what you said is correct, that does not mean it is and there are several ways to look at something. What I said is correct based on logics while what you said is correct based on geometry, but at the end of the day you still can't say they're the same exact thing based on a real scenario, how don't you understand that calculus was invented to MAKE THINGS SIMPLER and that's why there's approximates in the first place. Have a good day.
2017-11-23 22:10
true, he was asking only about the numbers and not how we use it
2017-11-23 22:23
x=0.99... /*10 10x=9.99... 10x = 9.00 + 0.99.... 10x = 9.00 + x since 0.99..=x now -x 9x =9.00 / 9 x=1
2017-11-26 15:44
2+2 is 4
2017-11-23 21:42
#63
fox | 
Portugal RafaKimi 
Minus 0.99999999999 that is 3.1111111111 Quick Maths /closed
2017-11-23 22:13
#112
 | 
Canada RNRulz 
3.00000000000000000....0001
2017-11-24 17:56
#124
fox | 
Portugal RafaKimi 
False plus True is False Minus False that is True Quick maths!
2017-11-24 18:11
0,(9) = 0,9 + 0,09 + 0,009 + ... (geometric sequence, a1=0,9, q=0,1) Infinite Sum : a_i=a/(1-q) 0,(9) = 0,9/(1 - 0,1) = 0,9/0,9 =1
2017-11-23 21:43
Congrats, you delivered the right answer with indepth justification! You win a cookie or smth, idk :)
2017-11-23 21:45
call me mathematician
2017-11-23 21:50
Just out of curiosity: Do you have any degree in mathmatics? Or are you studying mathmatics?
2017-11-23 21:52
I'm studying IT. Studying mathematics is unprofitable.
2017-11-23 22:00
+1 me too :)
2017-11-23 22:01
I mean if you do high school maths you learn this. As long as you didnt drop out or maybe if you didnt pick up maths
2017-11-24 08:26
I am in my first year at a German university and I just learned about advanced geometric sequences. The school I visited prior to that is known for being difficult, compared to other schools in my area. I guess we just did other stuff, but we did not do geometric sequences in a way that we were able to proof 0.99999999 = 1.
2017-11-24 15:12
really? its pretty straightforward, just using limiting sum
2017-11-26 04:48
#36
 | 
Portugal alonyyylvr 
x = 0.(9) 10x = 9.(9) 10x -x = 9.(9) - 0.(9) (=) 9x = 9 (=) x = 1 There are lots of ways to prove it xD
2017-11-23 21:52
Yeah, but the answer he delivered is the common way this equation is taught at universities and is approved by mathmaticians because of its' indepth justification.
2017-11-23 22:03
#47
 | 
Portugal alonyyylvr 
This equation is taught at universities ? I'm sure most kids with 12 years old can prove that 0.9 repeating is 1 easily. And most kids with 16 years in maths area know what geometric and aritmetic successions are and know their respective formulas. Didn't think something so simple was taught in University, it burnt my eyes
2017-11-23 22:06
This equation is NOT taught at universities. However, geometric successions/sequences are taught at universities and geometric sequences proof that 0.9999999 = 1 the best. As you said, there a lots of ways to prove it, but this is the "most correct and indepth one."
2017-11-23 22:08
#55
 | 
Portugal alonyyylvr 
I learnt about geometric and aritmetic sequences in 11th grade, last year, and all the formulas as well. And I'm from Portugal, and our education sucks ass.
2017-11-23 22:09
Lucky for you, maybe study mathmatics with your knowledge? :) Should be easy for you since you started with that stuff so early on.
2017-11-23 22:10
#60
 | 
Portugal alonyyylvr 
I won the mathematics olympics in my school and will move on to represent it in the district, maybe later in the country as well. I love maths more than anything, even tho i don't spend a lot of time on it. But I'll probably focus more on Physics as it has a wide variety of jobs. I hope one day i'll get in NASA, if Trump lets me :|
2017-11-23 22:12
Sounds good! Always chase your dreams and never give up! I bet you can do it if you just try hard enough :)
2017-11-23 22:13
#66
 | 
Portugal alonyyylvr 
Thanks my German mate. Next year will move to England, maybe to the University Of Northampton, still don't know what the hell I'm going to do (course). It's nice to have such incredible people like yourself and wish you all the best for the future as well! You're amazing.
2017-11-23 22:15
nice story of yours. is it a pity u have to go away from portugal to study?
2017-11-23 22:47
1+1=3 if you don't use a condom
2017-11-23 21:46
#39
 | 
Spain G3CK0 
lol
2017-11-23 21:54
ok
2017-11-23 21:50
#38
 | 
Norway FjordCS 
quick maths
2017-11-23 21:53
#46
 | 
Poland Trausky 
I was don't know this details
2017-11-23 22:04
#49
 | 
Turkey headshotk1ng 
0.999999999999999999999... = 0.999999999999999999999... 1 = 1 whoever found that 0.999999999999999999999... = 1 hes stupid IMO
2017-11-23 22:06
12 yo or uneducated fuck
2017-11-23 22:48
#79
 | 
Turkey headshotk1ng 
nt im 12 and half i think you stupid if 1 = 0.999999999999999999999... why they both arent wroten as 1 or as 0.999999999999999999999... ?????? cuz they are different numbers nt tho kkkkkkkkkk
2017-11-23 22:49
#27
2017-11-23 22:49
#81
 | 
Turkey headshotk1ng 
still not the same number ? 1 = 1 0.999999999999999999999... = 0.999999999999999999999...
2017-11-23 22:50
turkish education system lmao
2017-11-24 07:40
let x = 0.99999... 10x = 9.99999... 10x - x = 9.99999... - 0.99999... = 9 9x = 9 x = 1 QED
2017-11-23 22:06
+1 I was going to write that
2017-11-23 22:22
nt macaco burro
2017-11-24 14:59
cala a boca... tu não tem nem ensino médio completo. Translation: shut up... you don't completed the high school yet
2017-11-24 16:38
shut up.. you haven't even completed high school yet * não preciso de ensino médio pra elaborar frases coerentes esse thread é mais por zoeira, e, se voce acha mesmo que uma dízima periódica consegue alterar o valor, você tem sérios problemas mentais.
2017-11-24 17:41
10x = 9,(9) x = 9,(9)/10 x = 0,999999999999999999 0,9 = 10% of 9, therefore 0.9 =/= 9 (it isn't even multiplied by 10) nt tho
2017-11-24 14:58
lol that "proof" shows nothing prove it or i will kill you
2017-11-24 16:55
I corrected you, you got refutated and you haave no nothing to do. Exposed. Rekted. /closed
2017-11-24 17:41
2+2 is 4 - 1 is 3 quick maths
2017-11-23 22:07
#54
 | 
North America bloodwolf1710 
Yes
2017-11-23 22:09
0.9(9) = 0.9(9) 1 = 1 quick maths
2017-11-23 22:11
#59
device | 
Hungary Rollie 
Here you go, I won't justify it, I only send a video: youtube.com/watch?v=G_gUE74YVos
2017-11-23 22:11
#67
 | 
Portugal alonyyylvr 
Numberphile <3
2017-11-23 22:16
Depends on your reference. If you are looking at a graph and it has an asymptote and it goes to 0.999... then the asymptote is at 1. If you are talking about things that can be specific numbers, like population or photons and such then no. You have to round down at that point.
2017-11-23 22:12
If you had enough energy to create 0.999... photons at the wavelength/frequency you want then you did not create the photon you wanted or nothing happened.
2017-11-23 22:14
#64
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Netherlands MillkePlease 
no
2017-11-23 22:14
0.999999... = 0.999999... 1 = 1 Explaining by the 1/3 rule doesn't tell you 0.9999... = 1, it only shows you that the decimal math system is flawed. On the Base 12 system (known as duodecimal), with the reversed "2" (or X) as "10" and E as "11" (with 10 being 12, 11 being 13 and so on) the result of 1/3 would be 0,4 since 10 = 12. With this system there isn't such a thing as recurring decimals. You're welcome
2017-11-23 22:24
#71
 | 
Ukraine vols 
No, it's not. I wrote down my idea of the proof, but hltv keeps saying 'error' for whatever reason and refuses to post my message. Edit: 1) Consider a single-variable function f(x) with a discontinuity at x=1. Then, from the 'left', i.e. 0.999, the function has a different value compared to it approaching from the 'right', i.e. 1.001. 2) Let's assume there's a proof that 1 = 0.999; then, using the same proof, one can state that 1 = 1.001. 3) If 1 = 0.999 then f(1) = f(0.999) OR 1 = 1.001 then f(1) = f(1.001). 4) This yields f(0.999) = f(1.001) which contradicts to (1). Then, (2) reformulates itself: there does not exist a proof of 1 = 0.999. Equivalently, 1 != 0.999.
2017-11-23 22:43
Take a photo of it, send in the link :)
2017-11-23 22:36
#74
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Ukraine vols 
Wait I'm fighting hltv ;) I'll inform you, there are also steps 3 and 4 left ;)
2017-11-23 22:37
#75
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Ukraine vols 
done; Jesus, the programming level of hltv website is unbelievable. Had to remove all the punctuation.
2017-11-23 22:41
#76
 | 
Ukraine vols 
And when I say 0.999 or 1.001 I actually mean 0.99[..]9 or 1.00[..]1 of course.
2017-11-23 22:42
#98
face | 
World knwn 
Take f(x) = 0 for any x except x=1. It's a single-variable function with a discontinuity at x=1 and 'left' value = 'right' value. So your (1) is not correct.
2017-11-24 15:17
#133
 | 
Ukraine vols 
Yeah of course; But what you did is provided an example where left value equals to the right value, which is the case for any smooth function. However, in order to prove that 1 =/= 0.99[..]9 it is sufficient to provide only ONE example where this is true. This means that NOT AT ALL TIMES 1=0.99[..]9, which further means that 1 and 0.99[..]9 are not the same thing. Which means the answer to OP's question is NO. PS: providing I understood you correctly; I didn't exactly get why f (x) = 0 has a discontinuity at x=1 or at any x. It is in fact well defined at any point.
2017-11-24 18:54
349683464356567645 = 3500000000000000000?? No 349683464356567645 is 349683464356567645 ...
2017-11-24 07:48
Is not 1. it is 0.9. Like 33,3 + 33,3 + 33,3 =99,9 not 100. But the best way to write is it 1/3 because it is the exact value. In the case it is =1/3 instead of 33,3
2017-11-24 08:32
#108
 | 
Brazil l17arB 
*0,3 but it's still not it. 1/3 = 0,(3), not 0,3. thats why 1/3+1/3+1/3=1=0,(3)+0,(3)+0,(3)=0,(9)
2017-11-24 17:46
#92
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Indonesia ez271 
ofc yes, people have problem with this question only because its hard to imagine infinity
2017-11-24 15:05
#94
 | 
Europe kennyBeast 
Well its like saying for colors - very dark yellow = orange, you can make it the same if you want, but it isnt the same.
2017-11-24 15:08
0.9 isn't equal to 1, but if 0.9... goes on for infinity it is essentially equal to 1
2017-11-24 15:09
lmao at people saying 0.9999 recurrent isn't 1. it is exactly 1. Not approximately, not "close to 1". It's exactly 1. simplest proof: let 0.999 recurrent = x / *10 9.9(999) = 10x / -1x 9 = 9x x=1 edit: if you dont believe me watch the video youtube.com/watch?v=G_gUE74YVos
2017-11-24 15:22
2+2 is 4 - 1 = 3 thats quick maths
2017-11-24 17:42
#105
 | 
Brazil l17arB 
ofc, x=0,(9) 10x=9,(9) 10x=9+x -x+10x=9 9x=9 /:9 x=1 i thought it's clear to anyone.
2017-11-24 17:43
I ask my professor today in school. So his answer was 0,99 isn't 1. Why should I listing to one youtube video about one unknown person. Of course 0,99 = 0,99 ?? If you have 0,999-1= it isn't 0? But -0,001.
2017-11-24 17:45
#110
 | 
Brazil l17arB 
clearly 0,99 isn't 1. but 0,(9) is. also, it's not 0,999-1. it's 1-0,(9), which equals 0, or 0,(0).
2017-11-24 17:54
#109
 | 
Croatia mds818 
in practice yes,in theory no math has nothing to do with someone being smart or stupid.
2017-11-24 17:51
#111
 | 
United States ryryryry 
in theory yes. there are multiple different ways of showing this is true, there's the definition of a geometric series, an argument using the nested interval property, etc. it is a fact.
2017-11-24 17:55
+1
2017-11-24 17:56
#114
 | 
Croatia mds818 
you said 0.9999999999 so basicly 9 with a dot above right?Well how the fuck are you going to calculate something when it has unlimited ammount of 9's?
2017-11-24 17:57
#119
 | 
United States ryryryry 
one doesn't need to "calculate" a number in order for it to exist.
2017-11-24 18:04
#121
 | 
Croatia mds818 
in that case you wouldn't mind explaining me how exactly you're going to get to 1 right?
2017-11-24 18:06
#125
 | 
United States ryryryry 
sure. 0.999... is equal to 9*(0.1)+9*(0.01)+9*(0.001)+... = 9*[(0.1)+(0.01)+(0.001)+... ]. the expression inside the bracket is a geometric series with common ratio 0.1 and first term 0.1, so it is equal to 0.1/(1-0.1) = 1/9. thus, 0.999... = 9*1/9 = 1.
2017-11-24 18:12
#127
 | 
Croatia mds818 
sure it would make sense if you put up something like 0.999999 or 0.9999998 or something and not fucking 0.999999.... which means infine ammount of 9=impossible to calculate,that is a reason why i said in practice 1
2017-11-24 18:15
#134
 | 
United States ryryryry 
mathematicians have no problem handling an infinite number of nines in this case, since the number 0.999... represents a convergent geometric series. simple as that.
2017-11-24 19:01
yes. limit theory. /closed
2017-11-24 17:57
No
2017-11-24 18:02
0.999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999 = 1
2017-11-24 18:03
#122
 | 
Europe Tejmn 
No, only 1=1
2017-11-24 18:09
#135
 | 
United States ryryryry 
real numbers are not required to have a unique decimal representation.
2017-11-24 19:02
#140
 | 
Europe Tejmn 
U can't use "=" when some thing is not exact same number as first one
2017-11-25 18:58
#142
 | 
United States ryryryry 
good thing 0.999... and 1 ARE the exact same numbers!
2017-11-25 19:13
#149
 | 
Europe Tejmn 
They are not and u should go back to school u dumb fuck
2017-11-25 22:21
#150
 | 
United States ryryryry 
0/8 im 20 studying math at uni.
2017-11-25 23:43
#151
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Europe Tejmn 
NA education
2017-11-25 23:45
#166
rain | 
Switzerland Genkyo 
x = 0.9999999999999999999999999999999999999999999999 10x = 9.99999999999999999999999999999999999999999999 -x 9x=9 /9 x=1 x=0.99999999999999=1
2017-11-26 14:09
#123
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United States Farrukh_M 
en.wikipedia.org/wiki/0.999... Let x = .9999999... x * 10 = 10x .9999999... * 10 = 9.9999999.... 10x = 9.9999999.... 10x - 1 = 9x 9.99999.... - .999999... = 9 9x = 9 9x/9 = 1 x = 1. Therefore 1 = 0.9999999.... QED
2017-11-24 18:11
#126
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Portugal Wazaq 
Yes, 0,(9) = 1, but be careful, 1 is not 0,(9)
2017-11-24 18:14
thanks, will be careful from now on
2017-11-24 18:16
#130
 | 
Portugal Wazaq 
haha yes, you better watch out
2017-11-24 18:17
#136
 | 
United Kingdom Jonty04l32 
Well you can still be "smart" for lack of a better word and not know the answer to this number-cruncher. I'm absolutely dire at mathematics and anything related to arithmetic, but excel better in science/English, etc...
2017-11-24 19:05
Hi Jonty! Please read #7 and the following conversation! :) I did not mean to insult anyone, however. Have a nice day :)
2017-11-25 15:29
#137
 | 
Germany MBKING 
x = 0.999... 10x = 9,999 10x-x= 0,999... - 0,999... 9x =9 x=1
2017-11-24 19:43
#141
 | 
Slovakia Krafko 
0.999999999999999999999 = 0.999999999999999999999 But if you round it, than: 0.999999999999999999999... = 1
2017-11-25 19:01
my brain just froze bruh
2017-11-25 19:15
#144
f0rest | 
Portugal physt 
2+2=4 minus 1 thats 3 quick maths
2017-11-25 19:18
In mathematical terms, it is not exactly the same. However, if the value is rounded off to 1 significant figure, it is 1. It is close but close does not mean that it is the same.
2017-11-25 19:18
#152
TENZKI | 
North America wintur 
depends. if you're doing math for like a problem then yes, but if it's a measurement of importance then no (like length of screw, etc)
2017-11-25 23:48
1) 1/3 = 0.3333333333333... 3*(1/3) = 3*0.333333333.... 1 = 0.99999999999999999 2) x=0.9999... 10x = 9.9999999 = 9+x 9x=x x=1 something cool to know x/9 = 0,xxxxxxxxxx... example 2/9 = 0.222222..... xy/99 = 0,xyxyxyxyxyxy... example 69/99 = 0.696969... xyz/999 = 0xxyzxyzxyz.... example 123/999 = 0.123123123.... etc...
2017-11-26 00:08
Replace the equal sign (=) with this symbol: etc.usf.edu/clipart/41600/41697/fc_appro.. Then it is correct. (by some ridiculous reason, HLTV doesn't allow us to post the 'approximately' sign)
2017-11-26 04:58
0.999999999999999999999=0.999999999999999999999 apple = potato?
2017-11-26 13:58
2+3=13 (mod4)
2017-11-26 14:04
#162
 | 
United Kingdom AlywOw 
For dumb people without imaganion, yeah. For smart people with imagination, no.
2017-11-26 14:04
#163
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Portugal anomelyxd 
2+2 is 4 -1 that 3 quick mafs
2017-11-26 14:05
depends on what the situation is really but most of the time 1 would be fine
2017-11-26 14:06
#165
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Russia LAGUNADANCE 
ofc no,what a stupid quest., 0.99999999999999999999999999999999... as close as possible of 1,but 0.9999999999999999999999999<1
2017-11-26 14:07
Being lazy human, like all of us, 0,9999999999999999999999999999999 = 1 ... Is true to us, we don't care.
2017-11-26 14:27
2017-11-26 15:36
#176
Monkey | 
World ZMDR 
yes
2017-11-26 15:49
yes
2017-11-26 15:50
#182
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Ukraine LeenReex 
no
2017-11-26 15:58
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