Friday, January 4, 2008

clock of nines

the 7 o'clock isn't exactly equal to 7, but i dont mind rounding up.... i'm not that big of a nerd! cool clock!


link: here

6 comments:

kevinwparker said...

the 7 o'clock isn't exactly equal to 7

Sure it is - there's no mathematical difference between 1 and 0.999999...

Anonymous said...

kevinwparker is right. Here's the proof:

1/9 = 0.1111111...
9 * (1/9) = 9 * 0.111111...
1 = 0.999999...

Your brain truncates the digits, which is why it is hard for people to understand this. It is this truncation that later makes you believe you have to "round up."

Mikhail said...

Here's the Wikipedia page, which was actually a featured article:

http://en.wikipedia.org/wiki/0.999...

The most interesting part of this article is perhaps the "Skepticism in Education" section.

astropixie said...

i feel as though i am uninformed no longer. wow. thanks for the thorough explanations folks!

Anonymous said...

where can i get one of these? i want one for my precal teacher

astropixie said...

you can find it here: http://www.cafepress.com/triplenine.2445706