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# .9 repeating = 1

Discussion in 'Off-Topic' started by DurfBarian, Apr 2, 2004.

1. ### DurfBarianIncGamers Member

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2. ### {KOW}SpazedBanned

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You've been beat.

Here

I swear this was one of the signs of the apocolypse. *Re-reads Revelations*

Yep right here, "And he who is known as Durf will be beat three times with the sharing of queer news."

This is strike two. . .THE END IS NEAR!

3. ### DurfBarianIncGamers Member

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4. ### TheHillbillyIncGamers Member

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This is a very old riddle, and the proof is correct. You cant really debate math.

Another way to look at it is that 1/3 is .33...
and .33... x 3 = .99..., therefore .99... = 1.

Although seemingly illogical, it is correct.

5. ### SPARCIncGamers Member

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I never could understand why people wouldn't think .99.. = 1.

6. ### Wuhan_ClanIncGamers Member

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Didn't this topic come up again just a week ago? Anyways, go go US Army Super Soakers !!

7. ### MattIncGamers Site Pal

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Im sure most people think its is VERY close but if you asked them, is this number exactly one, they would say no, because its not written "1" its written .99999999 (ad nauseam) I actually had not known that .99999-> is one, but the fact that it is 1/3x3 makes much more sense, i understand now

-Matt

8. ### Suicidal ZebraIncGamers Member

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Ah yes, but then we get the question "does 0.3 reoccuring = 1/3?", which has a similar problem. :flip:

9. ### mathilIncGamers Member

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the 1/3 thing is wrong. to accurately display the number, you would have to abbreviate it .333333+1/(3x10^n). otherwise its just a rounding error. to accurately display the number 1/3 we could revert the number to base 3. in which case it would be .1 and the whole 1/3 thing doesn't pan out.

the limit thing is also wrong. because the limit is one, doesn't mean it is one. again, its just rounding.

the "thus" proof is also wrong. dealing with real numbers (not infinitely repeating. just TRY doing math with numbers that don't end) 10x will have one less decimal '9' than x. meaning that 9.9990-.9999=8.999

and that is "why people wouldn't think .99.. = 1."

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This is a lot better than what they did last year. All they did last year was replace the war3 icons with lost vikings ones.