.99999999~ = 1!!!!

2006-11-30 14:43:05

#201

Gawwad: My way or Haddaway!; +212|6943|Espoo, Finland

Bertster7 wrote:
Mong0ose wrote:
Gawwad wrote:
1 =/= 0.99999
0.999~ = 1

x = 0.999~
10x = 9.999~
10x - x = 9x
9.999~ - 0.999~ = 9

[Infinity - Infinity = 0]

0.999~ + 0.999~ + 0.999~ + 0.999~ + 0.999~ + 0.999~ + 0.999~ + 0.999~ + 0.999~ + 0.999~ - 0.999~ = 9
^ 9x ^
Techincally that is not true - by definition infinity is an undefinable number, hence infinity - infinity does not equal 0 - you are just assuming it does

As a result, 9.999~ - 0.999~ does not equal 9 by the same logic, since you are assuming an infnite number of 9's follows the decimal point
It is true. In exactly the same way that infinity*0=1.

Infinity x 0 = Undefined

EDIT: Wrong word damnit. It's late and I need sleep

Last edited by Gawwad (2006-11-30 14:44:28)

2006-11-30 14:44:07

#202

-=raska=-: Canada's French Frog; +123|6884|Quebec city, Canada

I think this answers well : http://en.wikipedia.org/wiki/Infinity#I … umber_line

Last edited by -=raska=- (2006-11-30 14:47:43)

2006-11-30 14:46:10

#203

Mong0ose: Will it blend?; +24|6744|UK

Infinity x 0 = Infinity

Negative

If you took abosultely nothing, then multiplied it by absolutely everything that has ever existed since the dawn of time, you would still have nothing

By definition, 0 multiplied by anything is zero

2006-11-30 14:49:36

#204

Gawwad: My way or Haddaway!; +212|6943|Espoo, Finland

Infinity -x+(what ever) Infinity or X = Infinity or -Infinity
Infinity / x = 0

2006-11-30 14:50:36

#205

Mong0ose: Will it blend?; +24|6744|UK

-=raska=- wrote:
I think that infinity - infinity = 0

because pi (infite number of decimals) - pi = 0, there is no decimals left, the infinity is removed by the infinity.

Pi and infinity are not even comparable

2006-11-30 14:50:45

#206

Gawwad: My way or Haddaway!; +212|6943|Espoo, Finland

Mong0ose wrote:
Infinity x 0 = Infinity

Negative

If you took abosultely nothing, then multiplied it by absolutely everything that has ever existed since the dawn of time, you would still have nothing

By definition, 0 multiplied by anything is zero

Identify x 0 = Undefined

It's like x/0

I'm off to sleep now ->

Last edited by Gawwad (2006-11-30 14:51:10)

2006-11-30 14:54:06

#207

Mong0ose: Will it blend?; +24|6744|UK

eh?

2006-11-30 14:56:10

#208

mooseboys: Member; +1|6899

Gawwad wrote:
Mong0ose wrote:
Infinity x 0 = Infinity

Negative

If you took abosultely nothing, then multiplied it by absolutely everything that has ever existed since the dawn of time, you would still have nothing

By definition, 0 multiplied by anything is zero
Identify x 0 = Undefined

It's like x/0

I'm off to sleep now ->

You guys are using infiniti like a real number. infiniti is not in the real number domain, so you can't add and subtract it like you would pi, or x, or zero. Definitions, axioms, theorems, etc, therefore do not apply to it. It is for this reason that infiniti - infiniti is not defined, rather than zero.

2006-11-30 15:09:29

#209

Mong0ose: Will it blend?; +24|6744|UK

well said, hence my post on the flaw of comparing pi and infinity

2006-11-30 15:23:26

#210

Bertster7: Confused Pothead; +1,101|6840|SE London

Mong0ose wrote:
"It is true. In exactly the same way that infinity*0=1."

LMAO - i wont dignify that with a mathematical response

Then you clearly don't understand maths.

Look up what a delta function is.
They are functions with an infinite height, zero width and an area of unity (1).

If you can't understand that then leave the discussion to the big boys.....

*edit*
There's actually quite a comprehensive Wiki article on them.
http://en.wikipedia.org/wiki/Dirac_delta_function

Last edited by Bertster7 (2006-11-30 15:28:18)

2006-11-30 15:53:00

#211

JimmyBotswana: Member; +82|6844|Montreal

Mong0ose wrote:
Mathematically, its impossible to prove that 1 = 0.99999, unless of course you break all the laws of algebra, including basic BODMAS

No it is not impossible to prove. .999999999999 repeating ad infinitum is equal to 1

Its very easy to prove .99999999999999... is equal to 1

.99999999999999... is equal to .33333333333333333333.... x3

.33333333.... is equal to 1/3

therefore

.3333333333..... x 3 = .99999999999...

can also be written as 1/3 x 3 = 1

therefore

.99999999999..... = 1

It is because 1/3 is actualy not .333333333... but it is so close we humans do not care for the difference.

No one disagrees that 1/3 x 3 = 1 but when you say .333333333... x 3 = 1 people disagree because they say it is .99999999999..... not realizing .9999999999999..... is another way of saying 3/3 and of course 3/3 = 1

2006-11-30 15:56:22

#212

47man: Member; +46|6682|Cali

wrote:
It is because 1/3 is actualy not .333333333... but it is so close we humans do not care for the difference.

That is what I'm saying, for all viable purposes .99999 = 1... but it is not in reality.

Last edited by 47man (2006-11-30 15:56:37)

2006-11-30 16:02:16

#213

jonsimon: Member; +224|6753

47man wrote:
wrote:
It is because 1/3 is actualy not .333333333... but it is so close we humans do not care for the difference.
That is what I'm saying, for all viable purposes .99999 = 1... but it is not in reality.

It is a notational flaw that bends the rules of algebra. As far as the rules of base 10 mathematics are concerned, .99... is equal to 1. But the value .99... represents is not the same value the number 1 represents.

Last edited by jonsimon (2006-11-30 16:02:31)

2006-11-30 16:02:54

#214

RAIMIUS: You with the face!; +244|6973|US

0.99999999 (repeating) is defined as 1 in math theory, if I am not mistaken.

2006-11-30 16:46:13

#215

mooseboys: Member; +1|6899

The thing is, the value of .999999999... itself is very unscientific.
If you want to represent x=1, you say x=1.
If you want to have x be infinitesimally smaller than 1, you say x-->1^-
If you want x to be infinitesimally greater than 1, you say x-->1⁺
Anyone who writes out .99999... is an idiot.

2006-11-30 17:07:41

#216

Bertster7: Confused Pothead; +1,101|6840|SE London

mooseboys wrote:
The thing is, the value of .999999999... itself is very unscientific.
If you want to represent x=1, you say x=1.
If you want to have x be infinitesimally smaller than 1, you say x-->1^-
If you want x to be infinitesimally greater than 1, you say x-->1⁺
Anyone who writes out .99999... is an idiot.

Which is kind of what I've been getting at for a while now.

It's an interesting little quirk of maths, but 0.999999999999999 etc. is of no practical use. Except possibly in something weird and quirky itself like quantum field theory a lot of using infinity in that....

It's not a real (by that I mean in the literal sense not the mathematical sense) number, it can never exist in nature, so who cares about it.

2006-11-30 17:21:51

#217

usmarine: Banned; +2,785|7020

Sorry, but this is the biggest geek debate I have ever seen. WTF are you tools talking about?

2006-11-30 17:42:29

#218

-=raska=-: Canada's French Frog; +123|6884|Quebec city, Canada

From Charles J. Sikes' list :

Rule No. 11: Be nice to nerds. You may end up working for them. We all could.

Last edited by -=raska=- (2006-11-30 17:42:45)

2006-12-01 00:07:32

#219

jimmanycricket: EBC Member; +56|6913|Cambridge, England

Bertster7 wrote:
mooseboys wrote:
The thing is, the value of .999999999... itself is very unscientific.
If you want to represent x=1, you say x=1.
If you want to have x be infinitesimally smaller than 1, you say x-->1^-
If you want x to be infinitesimally greater than 1, you say x-->1⁺
Anyone who writes out .99999... is an idiot.
Which is kind of what I've been getting at for a while now.

It's an interesting little quirk of maths, but 0.999999999999999 etc. is of no practical use. Except possibly in something weird and quirky itself like quantum field theory a lot of using infinity in that....

It's not a real (by that I mean in the literal sense not the mathematical sense) number, it can never exist in nature, so who cares about it.

0.999~ exists all the time in nature considering as its 1 and all.

2006-12-01 00:15:48

#220

HCSkorpio: Hind Secks; +8|6795|California

.9999...... is potential infinity. (ex. 3.14159)

.9999...... = 1, which is actual infinity ( we make it a thing) (ex 3.14159 = Pi)

2006-12-01 00:24:06

#221

B1GBUD: Member; +17|6854|Under an Artillery Shell

My head hurts..... a lot... >infinity

2006-12-01 00:52:44

#222

DonFck: Hibernator; +3,227|6890|Finland

Wow. 9 pages of arguing over numbers..

.99999~ isn't 1. 1 is 1.

If you try to prove this by divisions, I'll have to refer to the "Chewbacca defense": "It does NOT make SENSE, everybody".

I could just as easily state that 1/2^infinity = 0. Why? "Because it does NOT make SENSE!"
See, infinite division brings you close to the number zero, REALLY close, but doesn't deliver.
Same goes for .99999~. You have an infinite amount of decimals, but infinite isn't just enough.

This is why 1 divided by three isn't referred as .33333~, but a one third, aka 1/3.

So, if Chewbacca lives on the planet Endor with Ewoks, which does NOT make SENSE, you must realize that the number 1 is 1. Not .99999~

https://content.answers.com/main/content/wp/en/thumb/8/83/200px-0330chewbacca.jpg

Last edited by DonFck (2006-12-01 00:57:20)

I need around tree fiddy.

2006-12-01 02:17:47

#223

mcminty: Moderating your content for the Australian Govt.; +879|6980|Sydney, Australia

I closed this because [unfortunately] Fancy was right. It does equal one of you look at it as a sum to infinity of a geometric sequence.

$https://upload.wikimedia.org/math/d/0/a/d0affd549e6c0869bbf56de921b4ed12.png$

Just a few observations,

See, infinite division brings you close to the number zero, REALLY close, but doesn't deliver.

That ain't right. Division by "infinity", for example, is used to find limits in functions. As x-->Infinity is used for this purpose. Furthering the example, if you have 1/x, then as x-->infinity, 1/x = 0.

I'll draw up a diagram for those who are having trouble

Also, for some reason people failed to see my explination of why the algebra for 2=1 was incorrect.

I didn't want you guys to start a forum fight over MATHS...

Mcminty.

BF2S Forums .99999999~ = 1!!!!

Bertster7 wrote:

Mong0ose wrote:

Gawwad wrote:

-=raska=- wrote:

Mong0ose wrote:

Gawwad wrote:

Mong0ose wrote:

Mong0ose wrote:

Mong0ose wrote:

wrote:

47man wrote:

wrote:

mooseboys wrote:

Bertster7 wrote:

mooseboys wrote:

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