These street signs were found on Pi Day 2009 in Tucson, Arizona.

The street signs say...

+--------------------+ | 5th St 400 E | ---------------------- | 3rd Ave 600 N | ---------------------- | STOP 4-Way | +--------------------+the numbers are: 5 400 3 600 4 the math is: 3 * 5 * sqrt(4) * sqrt(400) = 600 rsPhiEval: (600 / 400) / 3 + sqrt(5/4) = Phi * Phi is the golden ratio and it approximates 1.61803399 rsAgeEval: (600 - 400) / 4 + 3! - 5 = 51 * RoadHacker was 51 years young we he found these signs rs42Eval: (600 - 400) / 4 - 5 - 3 = 42 * 42 is the "Answer to Life, the Universe, and Everything" more math: 4^(600 / 400) - 5 = 3 more math: log(400 + 600) / 3 + 4 = 5 more math: log((600 - 400) / sqrt(4)) + 3 = 5Again, these street signs were found on Pi Day 2009 in Tucson, Arizona.

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

**Created:** 05 April 2009

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