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#1 2009-08-18 13:49:39

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,630

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
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,357

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.
No great discovery was ever made without a bold guess.

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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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