Shop Community vote on product design challenges blog Log In | wish list | registry | trending

888.365.0056 | live chat |

my cart shopping cart checkout

geek wrist watch

This item is sold out and no longer available.

Click here to see more watches in UncommonGoods' assortment.
  • the story

It's Half-Past a Binomial Coefficient

Regular numbers? Those are for amateurs. Show off your mathematical prowess with a watch that features the equivalent notation of each number.

Cheat Sheet (included with each watch):
12 - a radical
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. The modular multiplicative inverse of 2 (mod 7) is the integer /a/ such that 2*/a/ is congruent to 1 modulo 7.
5 - The Golden Mean...reworked a little.
6 - Three factorial (3*2*1=6)
7 - A repeating decimal that is proven to be exactly equal to 7 with Cauchy's Convergence Test.
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, also known as the choose function. 5 choose 2 is equal to 5! divided by (2!*(5-2)!)
11 A hexadecimal, or base-16, number.

Made in China. Standard watch battery included. This watch is not water-proof.

Exclusively at UncommonGoods.

  • details
Item ID
Made from
stainless steel
Band: 9" L adjustable, Face: 1.25" dia. x .31" D

You might also like…

gift finder

Choose one or more options below to find your perfect gift.

gift finder submit