Re: Problems I have with 1.999...=2



stephen@xxxxxxxxxx wrote:

Kirby Cook <kwmcook@xxxxxxxxxxx> wrote:
: Problems I have with 1.999...=2

First problem, what do you mean by 1.999... ?

<snip>
I think of it as a sum or progression.

From the sci.math FAQ:

"In modern mathematics, the string of symbols "0.9999..." is
    understood to be a shorthand for "the infinite sum  9/10 + 9/100
    + 9/1000 + ...." This in turn is shorthand for "the limit of the
    sequence of real numbers 9/10, 9/10 + 9/100, 9/10 + 9/100 + 9/1000,
    ..."  Using the well-known epsilon-delta definition of limit, one
    can easily show that this limit is 1.  The statement that
    0.9999...  = 1 is simply an abbreviation of this fact.

The assertion that the sum is infinite means, to me, that there is no point where it will equal 1 and be, therefore, finished, and finite.

<snip>
Learn some math.

Stephen

DIS-missed. .



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