Geek Clock
By Ben on Wed May 27 2009
Geek Clock
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The Geek Clock($25) for really geek, where all the numerals have been replaced by the equivalent notation, if you can solve them all.
12 - the cubed root of 1728
1 - Legendre's constant is a mathematical constant occurring in a formula conjectured by Adrien-Marie Legendre to capture the asymptotic behavior of the prime-counting function. Its value is now known to be exactly 1.
2 - A joke in the math world: An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says, "You're all idiots," and pours two beers.
3 - A unicode character XML "numeric character reference."
4 - Modular arithmetic, also known as clock arithmetic, is a system of arithmetic for integers, where numbers "wrap around" after they reach a certain value.
5 - The Golden Mean...reworked a little.
6 - Three factorial (3*2*1=6)
7 - Repeating decimal that rounds up to 7.
8 - Graphical representation of binary code.
9 - An example of a base-4 number, which uses the digits 0, 1, 2 and 3 to represent any real number.
10 - A Binomial Coefficient
11 An example of Hexadecimal encoding.
Source   |   Price: $25   |   BUY
  
#1 Post by Peixuan, on Sat Dec 19 2009 11:40 PM
I'm pretty sure 2^-1 mod 7 = 1/2.
#2 Post by fberge, on Tue Dec 29 2009 3:0 PM
2^(-1) in the ring with seven numbers namely 0..6. Denotes the multiplicative inverse to the number 2, which equals to 4 since 4*2 (mod 7) = 1 (mod 7).
1/2 doesn't exist in the ring (mod 7) but 1/2 is the multiplicative inverse of 2 in real numbers. 2*(1/2) = 1.
#3 Post by A_geeks_outing, on Tue Mar 16 2010 1:39 AM
ad. #7:
6.9 periodic IS EXACTLY 7...

1) calculate with decimals && fractals:
1/3 == .3 periodic -> both multiplied by 3...
2) 6.9 periodic is an infinite amount smaller than seven; so this infinite amount can safely (from a pure math point of view) considered AS 7

greetz & thx for the fun ;)
#4 Post by BrianLiu, on Wed Mar 31 2010 1:2 AM
hi,so cool
#5 Post by nanoo, on Sat Sep 24 2011 2:7 AM
looking for free geek clock? check this: http://www.youtube.com/watch?v=FM6uO-aG7Gk
#6 Post by jojo, on Mon Sep 26 2011 8:58 PM
"mod" should not be written in italic because it is not the multiplication of three variables m*o*d
#7 Post by Loretta Cimmieri, on Fri Nov 18 2011 7:58 AM
I come from Italy and I would like to buy it.
How can I do to order and how much is it?
Thanks
Loretta Cimmieri
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