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#1 2009-08-18 13:49:39
- MathsIsFun
- Administrator
- Registered: 2005-01-21
- Posts: 7,713
Intervals
Another page for your perusal and comment: Intervals
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#2 2009-08-18 15:50:03
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Intervals
Hi MathsisFun;
Explains it nicely. I can not improve on it.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3 2009-08-19 00:06:29
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Intervals
Yep, another nice page.
It might be worth mentioning that an "outward facing" square bracket is sometimes used instead of a round one for open intervals.
eg. (0,1) = ]0,1[
() is my preferred notation though.
Why did the vector cross the road?
It wanted to be normal.
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