.999999 = 1

[makaveli121212]

or 1/9 = .1111111111111
2/9 = .2222222222222
3/9 = .3333333333333
4/9 = .4444444444444
.
.
.
9/9 = .99999999999999 = 1

[BluE_MeaniE]

Wow. That's very interesting.
I stand corrected, unless I can think of some way to disprove that...but it looks perfectly right. There aren't any faults, so I guess it's true.

[Feuergeist]

WTH, since when were you allowed to move variables from one equation to another in a system? IIRC, you can't.

[jewpinthethird]

Ugh...according to your equation, .999 does not equal 1 but 9.999 Minus .999 does. Am I missing something here?

[Lupin_the_3rd]

fuzzy slippers

[Feuergeist]

Ugh...according to your equation, .999 does not equal 1 but 9.999 Minus .999 does. Am I missing something here?

Agreed. Aperson does not know wth hes talking about.

[Lupin_the_3rd]

thats what i said in the 3 door thread (i still say you're wrong)

[aperson]

No Feuergeist, you are just fucking stupid. I plugged in the value of x for 9.999 - .999, which is why above it I wrote 10x - x = 9x.

Nice try.

[Feuergeist]

edit: nm, misread the problem. didnt see you were plugging in x, thought it was a system . Apologies.

[altairian]

no offense to aperson, but that's taught in pretty low level math course generally (like 7th or 8th grade) because it's such a simple "proof" that young kids can understand it easily

[aperson]

It's a joke in lieu of my other recent post.

However, it still causes a shitload of debate as to the validity of that proof.

[banditcom]

Not many people know that .9999... = 1. Most think that there is a .0000...1 difference. There is NO difference as the 9's go on forever. No difference means they must be equal.

That algebra crap you guys are showing is just a simple way to show that they are equal, to help explain. As I recall they aren't really correct, but are good enough to use. :P

[altairian]

on the surface, the proof is basically wrong because you're assigning two different values to a single variable. But infinity is a bitch and for all intents and purposes, .99 repeating is so close to 1 that you might as well call it 1 because the difference between the two is infinitely small.

[banditcom]

altairian: There is NO difference.

EDIT: Since you said "infinitely" small, that's good enough.

[altairian]

like I said, infinity is a bitch. There is a difference, but there isn't. You're saying that an infinitely small number is equal to 0. And you could never ever prove without question that that statement is true.