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Vector A
Supreme tranceaddict



Registered: Apr 2011
Location: U.S.
Re: Re: 0.999...

quote:
Originally posted by Looney4Clooney
that would not be a real number if the 9 extends to infinity.

Actually, it would be -- one casual definition of a "real number" is just that it is any number that can be represented by an infinite decimal (even if, as in the case of integers, that infinite decimal would just be something like 1.000000...).

quote:
Originally posted by Joss Weatherby
Essentially it can't be a number because it is constantly changing, its always going to be more or less than itself, never equal, and not any other number.

The mistake here is in thinking of a number as being created by a "process" such as adding numbers one by one after the decimal point. A number isn't an algorithm, it's just an abstract mathematical object that is always the same thing independent of representations or means of calculation.

Old Post Jun-05-2012 01:21  United States
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Vector A
Supreme tranceaddict



Registered: Apr 2011
Location: U.S.

In other words, "0.999..." and "1" are two different representations that refer to the same object.

We can also write this number as:

-(e^(i*pi))

integral from 1 to infty of 1/(x^2) dx

greatest_common_factor(104723, 104729)

Old Post Jun-05-2012 01:36  United States
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Zharen
Put down the plate



Registered: Mar 2003
Location: I wonder what you taste like

Why the fuck anyone would care about this oughta be the real question.


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My first ebook: The Plastic Wilderness / 2010 prog/deep mix

Old Post Jun-05-2012 04:55  United States
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