check this out

This is a discussion on check this out within the A Brief History of Cprogramming.com forums, part of the Community Boards category; http://www.sunlightd.com/m-math/Recurring.htm Looks like he still remembers that old thread too.......

  1. #1
    l'Anziano DavidP's Avatar
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    Cool check this out

    http://www.sunlightd.com/m-math/Recurring.htm

    Looks like he still remembers that old thread too....
    My Website

    "Circular logic is good because it is."

  2. #2
    ¡Amo fútbol!
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    What thread? A link would be nice if possible.

    Also, what does it say? I don't want to download that whatever math thing b/c my comp is slow enough as it is.
    Last edited by golfinguy4; 04-20-2002 at 06:57 PM.

  3. #3
    Just because ygfperson's Avatar
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    i've downloaded the math thing, and it doesn't seem bulky. (then again, in windows...)

    here's basically what it says:
    where E is the weird symbol for infinty and stuff... i haven't taken calculus so i don't know what its name is

    Proof that 0.9 recurring equals 1
    1-.9 = 10 ^ -1
    1-.99 = 10 ^ -2
    1 - .99999 = 10 ^-5


    Code:
        x
    1 - E (9 x 10 ^ -x) = 10 ^ -x
       i=1
    However:
    Code:
    lim x->infinity {10 ^ -x } = 1/(ln 10) * lim x->infinity { e^-x} = 0
                                     x
    therefore  lim x-> infinity { 1- E (9 x 10 ^ -i)} = 0
                                    i=1
    Last edited by ygfperson; 04-20-2002 at 07:41 PM.

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