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Thread: Hi explain why 0.999.... != 1 please.

  1. #16

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    Learnt this in Maths C

    let x = .9999
    10x = 9.9999
    9x = 9
    x = 9/9 = 1

    I didn't read through that website that Samuraid posted, if its in that, sorry.

    EDIT: Damn, it did. Oh well! I am smart in my own mind!

  2. #17
    Your very own Pikachu! Banned Peegee's Avatar
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    Grin

    In that thread i took the position that 0.9999 = 1 too.

    *sigh* do I get dumber as I age?

  3. #18
    Banned Morgoth_Bauglir's Avatar
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    i always hated math

  4. #19
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    Quote Originally Posted by Samuraid
    A couple of years ago I had to proof that 0,999999..... = 1 with "the real proof" It's not that difficult though if you look at it for an hour or so
    "Keep smiling, it makes people wonder what you're up to."

  5. #20
    Northern String Twanger Shoden's Avatar
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    I seriously suck at maths. Stuff that gets as complicated as this is way out of my understanding. I'm only doing Intermediate GCSE maths! I think by what I understand at the moment that some of these guys are madly and nerdly correct!

    LET THE HAMMER FALL

  6. #21
    Who's scruffy lookin'? Captain Maxx Power's Avatar
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    If 1 = 0.9999..., then why when I have an apple and take another apple I have 2 apples and not 1.9999... apples?
    There is no signature here. Move along.

  7. #22
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    Thank you people. My brain just imploded. The one thing I know is 0.9 and 0.9999 have the same value, as the 9 is recurring, so I see where PG came from.

    LET THE HAMMER FALL

  8. #23
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    Quote Originally Posted by Maxx Power
    If 1 = 0.9999..., then why when I have an apple and take another apple I have 2 apples and not 1.9999... apples?

    you will have 1,99999999..... apples because
    1 apple + 1 apple = 1 apple + 0,999999999 apples = 1,999999999.... apples


    Ow yes I luv maths
    "Keep smiling, it makes people wonder what you're up to."

  9. #24
    sly gypsy Recognized Member Levian's Avatar
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    Oh my god. I hated that thread. I hate this thread too. 0,999whatever is not 1.


  10. #25
    阴影龙 Zante's Avatar
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    Im going to go with common sence on this one and say that 0,9999...<1, proof or no proof.

  11. #26

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    If you mean 0.999 requring ( if thats how its spelt ) it will never reach 1. It will just keep going forever and ever and ever...

  12. #27
    Oh go on then Cz's Avatar
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    Quote Originally Posted by Samuraid
    The guy who wrote this article is a total jerk, so it's a shame that he's also correct. .9 recurring is equal to 1, because there is no number in between the two. And I suck at maths.
    "The most important and recognize player in the history of the country."

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  13. #28
    sly gypsy Recognized Member Levian's Avatar
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    Just because there's no number in between doesn't make it equal to it. >:/ Then .9[insert 9s here]8 would be equal to .9[insert 9s here]9 who's apparantly equal to 1. So in the long run 1 would be equal to 9. And that just ain't right, girlfriend.


  14. #29
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    This is decimals, Levian. It's a totally different and screwed up world of numbers then the basic 1, 2, err, 3, 4, 5, 6, 7, 8 and 9 (yay I got it right!)

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  15. #30
    Oh go on then Cz's Avatar
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    Quote Originally Posted by Levian
    Just because there's no number in between doesn't make it equal to it. >:/ Then .9[insert 9s here]8 would be equal to .9[insert 9s here]9 who's apparantly equal to 1. So in the long run 1 would be equal to 9. And that just ain't right, girlfriend.
    But the number 5 falls between 1 and 9, so the two can't possibly be equal. The idea of adding an 8 onto the end of .9 recurring doesn't really work, because there is no end to the sequence of nines for the 8 to be added to (since a recurring figure is repeated endlessly).

    The easiest way to think about it is to think of .999 recurring as 3 x .333 recurring. Since .333... is equal to one third, three times that amount is equal to 1. 3 x .333... = .999, so .999 must be equal to 1.

    This is a sucky explanation, and the reasoning is probably flawed, but that's the way I've always seen it. *shrug*
    "The most important and recognize player in the history of the country."

    Sometimes I wonder what my life would be like if I were as great as Paulo Wanchope.

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