yashsingh1/xdaforums huggingface dataset:
[Off-topic] _Variable:
Notice how we call $0.99 apps “$1 apps“? Its the same.

So, 0.9999999999... is ROUNDED OFF to 1 for ease.

Sent from a 2.8 inch muffin
[Off-topic] finalhit:
Nope. If .999.. is not equal to one, please name a real number that is between .9... and 1.

Maybe you've also invalidated the continuity of real numbers. You may have 2 Nobel prizes coming to you.

Either that or you're wrong and don't know what you're talking about.

---------- Post added at 09:58 PM ---------- Previous post was at 09:56 PM ----------

This is not a mathematical proof. While you're in the library reading about calculus, please check out some logic books as well.

---------- Post added at 10:02 PM ---------- Previous post was at 09:58 PM ----------

Too dumb; can't read

Recursive arguments are recursive
[Off-topic] prototype7:
Did you read that? It actually made a lot of sense and can hopefully put most of this to rest. It can go either way, depending on which number system you decide to use.

---------- Post added at 01:07 AM ---------- Previous post was at 01:04 AM ----------

Actually, while it might not have been stated very well, it isn't a bad point. Saying .9999....=1 is giving one number two different values, which is ridiculous. Even though the difference is infinitely small, imagine if we had no concept of decimals. Would 3=4 just because there's no number we can understand between them?
[Off-topic] gagdude:
Once you guys grasp the concept of infinity, then you will understand.

In the meantime, .999999999 repeated does in fact = 1. Decided by mathematicians long ago, there's no use arguing now

It would also appear to be a problem with the base 10 number system.

1/9=.111111111111

So, (1/9)*9 = .9999999999

Yet, (1/9)*9=9/9=1
[Off-topic] prototype7:
There isn't, huh? Just because mathematicians said so a long time ago doesn't necessarily mean it's true. Mathematicians in the past have had some pretty dumb or completely wrong ideas plenty of times. Read the link I quoted above, since you all say none of us are reading your links, read one that could go either way.
[Off-topic] gagdude:
Dude I don't care why are you arguing

OP wanted explanation

You give him the opposite. Really man?
[Off-topic] prototype7:
What? Because the OP asked why this is true I shouldn't try to disprove it? If the OP had asked why does 3=4 are we supposed to try and explain to him how it does? You're not even making sense, this thread has been a discussion about whether it's true or not since the beginning.
[Off-topic] gagdude:
Please stop arguing with the man with the Mathematics PhD here

.99999=1

How old are you, if you had a doctorate degree, was it in math?

Then we talk ;)

@everyone: why are we arguing? If you have no real math qualifications and are just copy pasting things from random websites, or just making up your own crap, then its fruitless

When I was still in middle school, my parents once told me .99999=1. That's where I first heard it. I was like gtfo no theyre different numbers and replenished all the arguments the nay sayers of this thread used. They both had math phDs. (Guess I followed in their footsteps)

Go on, talk to ANYONE with a doctorate degree in math about this. You will never win an argument. I learned that the heard way long ago, and arguing with people on a PHONE DEVELOPMENT forum just won't work. I will let you win, but try talking face to face with a qualified individual and tell me how it goes
[Off-topic] prototype7:
If you want to convince me, you're going to have to give some reason other than "I have a mathematics degree so everything I say must be true" lol. I've looked at the arguments for both sides, and I'm sticking with my opinion because it makes more sense. Just because we can't comprehend the difference does not mean it doesn't exist. This is, of course, assuming you meant to type .99999....,because there's no question that .99999!=1
[Off-topic] gagdude:
Read my edits, Ill let you win.

.99999 does not equal 1

But just go talk to anyone in your neighborhood with a math phD

Also, my argument is not that "we cannot comprehend the difference" that is elementary thinking, and even I disagree with that

My argument is the concept of infinity

Sh!t don't respond to the last 2 paragraphs, I'm just heating up the argument, aren't 8?

I'm gonna cool down again and say ask anyone with a doctorate degree in math. None of them will agree with you (as stated above, trust me, I tried in middle school)

Also... .99999! is .99999 factorial which is not 1...man if you don't know what a factorial is then I don't know what you are doing arguing this even more complex concept
[Off-topic] slapshot30:
Do you know what a limit or infinity is? Might want to pull out that old calc book. .999 repeating will get infinitely close to 1 but never ACTUALLY reach it. That's the idea of a limit involving infinity and why we use them, its like an approximation. They're useful because they get us super super close to that certain number, but never do they actually reach that number.
[Off-topic] prototype7:
I should have spaced it out, that was != as in does not equal. Too tired to respond to the rest of your comments, be back tomorrow. If you really want to convince us, give us some proof. Not links to websites or pictures of complex equations, explain it in your own words.
[Off-topic] gagdude:
Its late here too. But tomorrow on Sunday, if you go to church, try asking a guy there. Argue back... that's what I did.. then realize you lost. bada bing!

Also, I already conceded the argument. But I'm still just handing it off to your local specialist. Have fun

Also, is sq.rt(36)

A. 6

B. -6

C. +or- 6

just another concept I argued as a freshman in HS and lost

I can also write you my own detailed response tomorrow, if ya want
[Off-topic] hatcyl:
I'm not sure were we are in this argument ... But here I go!

.9999999999 != 1 (!= means does not equal)

My argument:

.9999999999 + .0000000001 = 1 (fact)

.9999999999 = 1 - .0000000001 (minus on both sides)

I think that's proof!
[Off-topic] finalhit:
were' talking about .9... = 1
[Off-topic] ysoliman:
Its the difference between the lim n-> infinity of (1+1/n)^n and lim n->10^9 of (1+1/n)^n

e (2.7182...) is not equal to 1. Just how .999 is not equal to 1, but .99999.... is.
[Off-topic] jRi0T68:
No reason for you to be a prick. Take that out with your therapist.

I believe this is a matter of how we view the concept of limits. It doesn't matter what numbers are used or the scenario.

Are limits the same as being equal? That's the question. No numbers needed to discuss it, they're just a distraction.

Sent from the top of my muffin.
[Off-topic] finalhit:
i'm not being a prick, i'm merely responding in kind. you make really bad arguments. $1 apps is your argument? really? come on.

and yes, the limit of the sum of an infinite geometric series is equal the value that series converges to.

---------- Post added at 11:54 PM ---------- Previous post was at 11:49 PM ----------

1) please use latex (http://www.codecogs.com/latex/eqneditor.php), i can't read your formula. but from the looks of things, your make no sense.

it doesn't have anything to do with anything.

2) your question makes no sense. .999 != .999..., so why is the equality of .999 to 1 relevant to this issue?
[Off-topic] jRi0T68:
I never said $1 apps, and you're being less than mature in some replies. No need to be less than civil.

Sent from the top of my muffin.
[Off-topic] _Variable:
It was me who said it. :)

Sent from a 2.8 inch muffin
[Off-topic] jRi0T68:
I got your stump (back), fellow muffin.

Sent from the top of my muffin.
[Off-topic] finalhit:
my apologies, there's too many people on your side resort to trolling when they run out of arguments. also, muffins.
[Off-topic] _Variable:
Back on topic.

.9999999.... != 1

Mathematicians usually round off numbers for ease. Hence they call it 1. But it issnt 1, it can round off to 1 but .999999.... is .999999... which is NOT 1.

Sent from a 2.8 inch muffin
[Off-topic] finalhit:
exhibit a.

as a Filipino myself, i'm a bit embarrassed now.
[Off-topic] veeman:
Yes I am serious and what I'm saying is not even close to saying 9=10.

Ask any mathematician and they will tell you that 0.9999... equals 1.

0.9999... means the infinite sum of 0.9999....

Which means 9/10 + 9/100 + 9/1000 + 9/10000 ... and at infinity you will get 1.
[Off-topic] boborone:
I was studying mathematics as a second major and you would laughed out of grad school for saying that. Hell you learn such problems in basic geometry with graphing equations like y = 0.9^x. Wherein the curve almost touches but never equals and seams to be but never is parallel to 1.
[Off-topic] veeman:
You have an incomplete understanding of infinity.
[Off-topic] boborone:
Yeah that goes with my post right above yours.
[Off-topic] veeman:
I'll just leave this here...
[Off-topic] boborone:
We've taken this far beyond his question of why does the calculator read it as one. Which I answered earlier. But yes my equation was wrong, I saw that after I posted. And we're coming to the same point.
[Off-topic] veeman:
1-1=0

1-(.9999...)=0.00000...1 <----However since it goes to infinity, you will never get there.
[Off-topic] veeman:
[YOUTUBE]TINfzxSnnIE[/YOUTUBE]
[Off-topic] ScatteredHell:
When we divide a number by zero, we consider the answer is infinity.

We say that because,

0. 0000000000000000000000000000000000001

When u divide by the above number, result will be a large.

So, like that ur,

0. 999999999

When u divide or multiple by above number you will get a result, and It's a tiny difference.

0. 999999999 x 1

1 x 1

I will respect to you, if you can respect to the other rest.
[Off-topic] Archer:
Anyone who thinks that 0.9999 recurring is equal to 1 has no understanding of infinity.
[Off-topic] xaccers:
It's like 1/3 of 100 is 33.333333... but 3x33.3333333...=99.99999.....

It's because 1/3 of 100 is not a finite number and therefore cannot be properly described as a decimal.
[Off-topic] Archer:
That's exactly why the answer to the question is no. You're saying that 0.99999 etc. equals 1 because you can't properly express it. Infinity cannot be expressed so mathematicians say "it's close enough so we'll call it that". Maths is full of assumptions, but they are all incorrect in the real world. 0.99999999999999999 may be so close to 1 that you may as well call it 1, but it isn't. A lack of means to express something does not mean it is incorrect.
[Off-topic] conantroutman:
Gentlemen please.....

Can't we just skip this bull**** and cut straight to dividing by zero.

Real men divide by zero.

/troll, carry on....

Sent From My Fingers To Your Face.....
[Off-topic] Archer:
Only Chuck Norris can divide by zero.
[Off-topic] veeman:
Oi. Please research sum of a geometric series. And also watch that video I posted earlier.
[Off-topic] Archer:
AHHHH!!! You're still talking about assumptions. Maths is meant to be about purity, not "oh I don't know how to express this number so I'll just call it 1". If you regurgitate what your maths lecturer told you then 0.999... does equal 1. End of. But if you look at it in literal terms (AKA real life) then it's not 1. It's stupidly close, and in fact so close that you can't describe why it isn't 1 without discussing infinity, but it is not 1.

You need real comprehension of what the word 'infinity' means before you can understand that. If you don't comprehend it then you will never understand.

Also, can we please stop pretending that calculators have any place in this discussion?
[Off-topic] Archer:
Obviously calc.exe is correct.
[Off-topic] PhantasmRezound:
"It depends on what the meaning of the word 'is' is." -Bill Clinton
[Off-topic] _Variable:
how in hell did i troll there?

I just said that it is just rounded off to 1 but is not 1.

Sent from a 2.8 inch muffin
[Off-topic] finalhit:
how is that proof of anything? no one ever argued that .9999... rounds off to 1 therefore it is 1.

.999... is the an infinite geometric series, the limit of the sum of which equals 1.

you've ignored the entirety of the arguments presented, and invalidated them with a completely irrelevant strawman...so yes, that's trolling.

edit:

i'm being presumptions, it's possible your not consciously ignoring arguments, but you've simply never read them. in which case, you're not trolling, you're just being obnoxious.
[Off-topic] Deadly:
No matter how many theory you give to prove 0.99999...=1

think practically for once... every number after decimal point has lesser value than its left side number... so no matter how many times you put 9 after "." It won't get more value than previous 9.. so if the "first" "0.9" is not equal to 1.. then "0.99" or "0.999" or "0.9999" or "0.9999......" won't be equal to 1.. it does "tends to" be equal to 1.. but its not actually equal to 1..

So don't tell we don't know "limits" which uses "tends to" and "infinity" meanings.. here we are talking about infinite 9's "after" "decimal point"..

So value goes down at each extra 9 being written and would never be equal to 1 when the first .9 is not equal.. it just gets "very very very close" to 1..

**Nothing is True... Everything is Permitted**

Muffins.. muffins everywhere!

---------- Post added at 01:49 PM ---------- Previous post was at 01:45 PM ----------

No.. its not trolling.. she just gave a simple common sense reason to say its not equal..

Edit for your edit: just because she didn't comment on you posts doesn't mean she didnt read it...

**Nothing is True... Everything is Permitted**

Muffins.. muffins everywhere!
[Off-topic] finalhit:
you're acknowledging that .999... is an infinite number, but you insist on treating it like it's eventually going to terminate. the operation you're describing only applies to terminating numbers. it does not work for non-terminals.

as soon as .9999... terminates, you can conclude that .9999... < 1

however, .999..., by definition, will never terminate.

i just want to expand on the concept of greater than/less than

that reason you know that x > y, is because

x - y > 0, so for you to conclude that 1 > .9999..., you must perform the operation

1 - .9999... = ?? > 0

you are not allowed to perform this operation.

no, this issue has been brought up, over and over and over again. she's repeating the same argument as if it were some brand new argument. she either:

a) didn't read

b) read, but trolling.

that statement .999...=1 is not a rounding issue.

math holds the symbol "=" to mean one thing and one thing only. when mathematicians say

that's what it means. i don't know how old you guys are, so I may just be interpreting your naiveté as trolling, but if you haven't learned calculus yet, just please be honest and say that you haven't.

stop being certain about things you haven't learned yet.

_________

i don't know if you've read my edits in my last really big post, if not, please do. from that last article, you've already agreed that "it can go either way".

why are you still denying this when you've already agreed to it. and again, hyperreals do no support your thesis.
[Off-topic] hatcyl:
Ohhh, what page did that happen?

The title should be updated. Ok then ...

.999... != 1

My argument:

.9 = 9/10

.99 = 99/100

.999 = 999/1000

...

.9 = 9/(9 + 1)

.99 = 99/(99 + 1)

.999 = 999/(999 + 1)

...

x = .999...

Y = 999...

x = y / (y + 1)

xy + x = y

x + (x/y) = 1

So

1 = .999... + (.999.../999...)

.999... = 1 - (.999.../999...)

1 != .999..., the difference between the numbers is (.999.../999...)
[Off-topic] finalhit:
x = y / (y + 1)

y = 999... (this is infinity)

y+1 = 999... + 1 (this is still infinity, actually, infinity+1...but who's counting, right? but seriously, this is just infinity.)

so you're saying

x = y/(y+1)

.999... = infinity/(infinity+1)

.999... = ∞/∞

umm, no? unless of course inf/inf=1, in which case yes (it is not)
[Off-topic] :
0.999999... will only have an infinitesimal difference from 1 but no one on this planet will ever understand infinity so don't keep arguing about what none of us will ever be able understand. And it can't be necessary to know this, because no one ever will. They just believe that either 0.99999...=1 or 0.9999999....=0.999999999...

So this thread is pointless.

Sent from my Baconmuffinator Over-9000
[Off-topic] hatcyl:
What I am saying is:

.999... is not 1.

There is a number between them which is .999... / 999...

Now, no matter how close .999... is to 1, or how close .999... / 999... is to 0 they are what they are not what they are close to.

And no, infinity does not always equal infinity. So inf/inf is not 1. In fact, that's the only reason my argument works.
[Off-topic] finalhit:
nope, please read the thread. keyword: zenos paradox

---------- Post added at 01:01 AM ---------- Previous post was at 01:00 AM ----------

i know that's what you're trying to say...however,

nothing of what you've actually said proves that. your argument does not work, it's completely invalid math.

there's no such thing as infinity+1, and you can't divide infinity by infinity.

if y=999...

and x=.999

then

x != y/(y+1)

therefore, you proof is invalid.
[Off-topic] finalhit:
.9... does exist, it is the sum of the distance your fingers traverse in order to type the words you are typing.

in order to hit the letter "a", your finger must traverse 1unit of distance.

to do so, it must first traverse 9/10th of that distance, then 9/10th of the remaining distance, then 9/10th of the remaining distance, etc

that's .9 + .09 + .009 + .0009 ad infinitum. = .999....

unless that message you just typed doesn't exist...it must be true, that your fingers have traversed 1 unit of distance, multiple times actually...

zenos paradox guys, please learn to read.
[Off-topic] hatcyl:
To Run a mile, first I have to run half, then half of what is left, then half of that, then half of what is left over ...

Using this logic, I will never be able to run a mile.

I'm just messing around ... It doesn't matter.
[Off-topic] finalhit:
it's trolling time.
[Off-topic] finalhit:
What is this muffin thing? Some sort of

Secret society to uncover the Catholic church's conspiracy to control the world though calculus.

If so, you will never win...calculus is used in computers, telecommunications, finance and pretty much all of modern life.

We will win bwahahahaha
[Off-topic] jRi0T68:
That, oh. It's muffin, don't worry about it.

Sent from the top of my muffin.
[Off-topic] Deadly:
You are very very close... but still so faaaaar.. just like 0.9999999..... & 1:p

Check pm

**Nothing is True... Everything is Permitted**

Muffins.. muffins everywhere!
[Off-topic] a.cid:
Close this thread already :sly:
[Off-topic] jRi0T68:
This. Dear Mod, please, this.

Sent from the top of my muffin.
[Off-topic] finalhit:
@nitu...ah, I see.
[Off-topic] Deadly:
:Thanks:

You took the words of my mouth!:thumbup:

This thread has served its purpose long back.. op got his answer in first 4 pages itself..

**Nothing is True... Everything is Permitted**

Muffins.. muffins everywhere!
[Off-topic] finalhit:
Pretty sure the op stopped caring much earlier than that.

To bad you guys still don't understand calculus though =)

Calculus denialists
[Off-topic] coincoin4ever:
Without .9999999…=1 you would not have been able to use the computer or phone you are typing on.

Such stubbornness aha... why don't u listen to specialists when you don't know anything about the question. And its not even hard to understand we learn that in high school.
[Off-topic] prepaidguy9081:
+ 1
[Off-topic] _Variable:
Yeah this is pointless.

Who in the world cares if .9 infinity is 1 or not.

Sent from a 2.8 inch muffin
[Off-topic] prepaidguy9081:
What if all this energy was spent idk building a house for someone on skidrow? Feeding starving childeren in africa. Im sure all the pozitive current leaking into us frome our screens alone on this one forum thread. [Not to menion backlights and processors and antennas] would have feed atleast one or two kids right?
[Off-topic] Deadly:
Noooooooooo.....

You are getting way too serious on a thread like this:eek:

**Nothing is True... Everything is Permitted**

Muffins.. muffins everywhere!
[Off-topic] finalhit:
surely teaching ignorant yet stubborn children in America calculus is positive a thing. maybe in the future, there would be 1 less homeless person in skid-row....and 1 more scientist who helps invents a renewable source of energy. or one more economist that would prevent a global recession because of better grasp of interests and risks; or be a doctor that prevents a drug overdose because they understand the rate of decay of a drug...etc.etc.etc

again, .9...=1 may not matter to you, in the context of this pointless thread, but the reason as to why .9...=1 being TRUE does. it's used everywhere, in most of your modern life...so deny it if wish, you are still wrong, it does matter.

it's always nice to see those who insist so hard that they're right, then when proven wrong, instead of admitting it, just declare "it doesn't matter". kinda like those kids that push the chessboard aside once they know they've lost. good going kids.
[Off-topic] finalhit:
nope

less cussing, more reading.

mathematicians are the ones that proved that .9...=1, which ever mathematician was laughing at that concept needs to get fired.

wow, just searched your name in this thread, the only arguments you've presented is basically the same declaration you just made just now, over and over and over.

".9... != 1, i'm right, you're wrong"

declarations are not proof.

visit your local library and learn zenos paradox...read it, learn it, live it. of course, you might not be able to reach it because you wrongfully think that .9..~= 1

you'll only get to the door, but you'll never quite get inside.
[Off-topic] coincoin4ever:
I am a mathematician and I laugh at you.
[Off-topic] prepaidguy9081:
Im super cereal

Lol

Im rairly serious dude. Im light hearted all the time.

Ill check out that paradox. And agreed declerations do no denote fact.

That being said is this paradox a law or a theory?

---------- Post added at 06:36 AM ---------- Previous post was at 06:35 AM ----------

And I just realized zenoes is also the final boss on final fantasy iv. Cool. I bet thats not coincidence since hes suppost to be infinitly strong.

---------- Post added at 06:42 AM ---------- Previous post was at 06:36 AM ----------

http://en.m.wikipedia.org/wiki/Zeno's_paradoxes#section_5

Am I looking at the right thing?
[Off-topic] mrmylanman:
Not sure if anyone replied with this or not but because of binary, rounding errors occur all the time in programming unless you take specific steps to avoid it. Could be that.
[Off-topic] vader860:
If you take an infinite series with r = 1/10 then as x approaches infinity, you get 1. This however is a theorem not a law.

Accept it or not, who cares.
[Off-topic] veeman:
Sorry, but this thread is way better than a lot f the threads in Off Topic. Mathematical discussion is not a waste of time.

Sent from my Nexus 7
[Off-topic] coincoin4ever:
Nice you have proven that 1=0
[Off-topic] beneath-a-burning-turtle:
I seriously can't believe this thread is still ongoing lol
[Off-topic] stamatis:
You should feel baaaaad.
[Off-topic] :
Well he got most of his 10 posts in OT :rolleyes:

Sent from my Baconmuffinator Over-9000
[Off-topic] coincoin4ever:
Aha... look who is talking you are having a wrong way thinking... you don't even take time to understand what lies beneath.[ (False) => (false) ] is true so what I have said is true with the implication of what you told.

You seriously believe your proof ? How did u get to engineering school ??? Learn some mathematics theory you cruelly need some.
[Off-topic] :
That made sense..... oh wait..

Sent from my Baconmuffinator Over-9000
[Off-topic] coincoin4ever:
... lol ? this is so hilarious how you are so sure of yourself.

You are writing with x->oo, [1-1/x]=0 ? lol ? Cant you see your nonsense in your proofs ?

Cant you understand : this easily ?

You re going to a University you are proud of. So please, dont be a shame for your University.

And i m doing a PhD in applied maths.
[Off-topic] veeman:
At infinity it will.

Sent from my Nexus 7
[Off-topic] coincoin4ever:
0.9999... != 1 so 1=0 is true.

OK ?

congrats. Just saying