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Author Topic:   0.99999~ = 1 ?
Iblis
Member (Idle past 3895 days)
Posts: 663
Joined: 11-17-2005


Message 81 of 237 (544066)
01-23-2010 5:12 AM
Reply to: Message 1 by Huntard
01-15-2010 8:19 AM


and now for something completely different
For those of you who like this sort of thing, but need something a bit more substantial than "a one by any other name"; give it up for Infigers !!! The rest of that thread will be a bit of a deja vu.
As for the current problem, here's what it looks like for those of us who do our math in our heads.
1/3 = .333...
ergo
1/1 = .999...
qed

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Iblis
Member (Idle past 3895 days)
Posts: 663
Joined: 11-17-2005


Message 106 of 237 (544143)
01-24-2010 2:52 AM
Reply to: Message 104 by Jon
01-24-2010 2:35 AM


Re: Totally right!
Do you really not understand? I assumed you were playing riverrat for this thread. I'm still not convinced, but whatever, anything for doubt.
The definitions are made up after the fact and rely on some work by Cantor (set theory.) Initially, real numbers are a set devised to include both rational and irrational numbers. What they do not include are things like imaginary and undefined numbers. These are products of the square root of -1 and of 1/0 respectively. To the extent that new formulations are made up that do not seem to constitute rational or irrational numbers in the same way, the definitions will be expected to show why. For example, the square root of negative 2 could be considered irrational, but it isn't, specifically because it is imaginary.

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 Message 104 by Jon, posted 01-24-2010 2:35 AM Jon has not replied

  
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