Interesting question. Does 1.99999999999... = 2

[BL!NKEY]

0.9 recuring he means usually shown with a dot above the 9.

ya

here is a page with more reasons why it is equal
http://polymathematics.typepad.com/p...sorry_it_.html

[Wootzeh]

Not a very good teacher is he if he doesn't know his their, there and they're s.
And no 1.999999 does not equal 2 because they're their own separate numbers, that's like saying pi is 3.142.

[WarezKid]

it 1.9999 = 1.9999

Or i just dont ****** get it

[Energizer]

no it doesn't..

[Plank]

I would say it isn't because if your using an infinity number of recurring numbers, then it isn't going to reach 2?

No matter how many 9s you add, infinitely, it will NEVER equal one.

Additionally, all of your calculations have infinitely repeating decimals which you very kindly shortened up for us (which you can't do, because again, you can't represent the concept of infinity on paper or even in html). If you had stopped the numbers where you did, the numbers would have rounded and the calculation would indeed, equal 1.
Bottom line is, you will never EVER get 1/1 to equal .99999999... You people think you can hide behind elementary algebra to fool everyone, but in reality, you're only fooling yourselves. Infinity: The state or quality of being infinite, unlimited by space or time, without end, without beginning or end. Not even your silly blog can refute that.

[Aflux]

No it doesn't.

[FlyingJesus]

.9 recurring will always be infinitesimally smaller than 1, so no this can't be the case. Using fractions like that doesn't work, as it's an illogical method.

[BL!NKEY]

it 1.9999 = 1.9999

Or i just dont ****** get it

That is correct but we are not talking about 1.99999

we are talking about 1.9999999999999999... (an infinite amount of 9's)

.9 recurring will always be infinitesimally smaller than 1, so no this can't be the case. Using fractions like that doesn't work, as it's an illogical method.

Why does 0.9999... = 1 ?


Basically because there is no rational number small enough to fit between .9999... and 1. Therefore there is no difference making it the same number.

[FlyingJesus]

So not having a rational number between two numbers makes them the same number? That's irrational itself.

[BL!NKEY]

Maybe I explained that wrong. Maybe it was another word instead of rational number.

But the point was along the lines of if there is no number that can show the difference between .999... and 1 then they are the same number.

Wikipedia could explain it better

http://en.wikipedia.org/wiki/Proof_t...99..._equals_1