This road sign is on the north/east Loop 101 in Scottsdale, Arizona.

The road sign says...

+---------------------------+ | Scottsdale Rd 1/2 | | 64th St CLOSED | | 56th St 2 1/2 | +---------------------------+the numbers are: 1/2 64 56 2 1/2 the math is: 2 1/2 - 1/2 = cuberoot(64 - 56) rsAgeEval: 56 - (2 1/2 - sqrt(cuberoot(64)) + 1/2 = 55 * RoadHacker was 55 years young when he found this road sign. rsPhiEval: reciprocal(cuberoot(sqrt(64))) + sqrt(1/2 * 2 1/2) = Phi * Phi is the golden ratio and it approximates 1.61803399 rsCardinalityEval: cuberoot(64 - 56) + 2 1/2 - 1/2 = 4 * There are four numbers in this road sign. ...playground... * use the ceil(n) and floor(n) functions on the 1/2 and 2 1/2 * ceil(1/2) = 1; floor(1/2) = 0; ceil(2 1/2) = 3; floor(2 1/2) = 2

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 04 November 2012

This work is licensed under a Creative Commons Attribution 3.0 United States License.