A long break between posts.

Mar 31, 2006 00:16

Hey all who infrequently read my lj. I think this is mostly because I post to the lj infrequently. Anyhoo, Hi crowd ( Read more... )

maths

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pippilicious March 30 2006, 22:26:15 UTC
The issue with odd and even and zero is that the concept of odd and even (male and female, good and evil) numbers predates the concept of zero being a number by centuries, let alone negative numbers. Numbers were conceived as some sort of spiritual entities, because they did have power to tell you how the world worked, and they definitely existed because four minus three will ALWAYs leave you with one. But what is 'One'?
We've merely fitted the old mythology of the number entities to our extended numberline even though it doesn't really apply.
The absence of a number, even a very large number, may be something that you can count, but it doens't make it an entity. Not even a spiritual one.

I hold that zero is not even. Neither is it odd. As for negatives, let's just not go there. Modern fabrications, merely!

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midwifealice March 31 2006, 03:14:36 UTC
I was actually about to post a question raised by my mum's maths teacher about proving that 0.99 reccuring equals 1...the three thirds one being the simplest of those discussed!

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babso March 31 2006, 06:06:27 UTC
Now that's just our brains not dealing with infinity very well. If you were to start at the other end, adding 0.3_ three times would give you 1. But 0.9_ is not 1, tho it's a very close number 2.

For your next entry Ed, I highly recommend you rant about infinity for a while. You had me thorougly entertained at Ali's party. I just started you talking with a joke I'd heard and I think an hour later the beer was warm and I was still in stitches :)

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ecumaniac March 31 2006, 00:15:38 UTC
I thought it was because even numbers have form 2n, where n is an integer, and odd numbers are 2n+1.

So if n=0, then zero would be written 2*0. But zero can't be written in the form 2n+1.

Or is there a more deep and meaningful explanation?

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miss__scarlet April 3 2006, 11:15:27 UTC
layman's maths = yay!
(it's the only maths i've been near since year 11... well with the exception of partly understanding ECGs in relation to vectors - do they count?)

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