This electronic road sign was seen on westbound I-10 in Tempe, Arizona.

The road sign says...

+--------------------+ | Minutes To | | I-17 7th St 10 | | I-10 7th St 12 | +--------------------+the numbers are: 7 7 10 10 12 17 the math is: 10 + 7 + 7 = (17 - 12 - log(10))! more math: (sqrt(17 - log(10)) + 7 / 7)! / 10 = 12 rsPhiEval: (log(10) + sqrt(12 - 7)) / (log(10) + log(17 - 7)) = Phi * Phi is the golden ratio and it approximates 1.61803399 rsPiEval: (10 + 12 * (17 - 7) / 10) / 7 = Pi * 22/7 approximates Pi rounded to nearest hundredth (3.14) * 3.1415926535897932384626 rsStateEval: (17 % 7)! * (12 - 10)^(10 - 7) = 48 * Arizona was 48th state admitted to the Union. off-by-one rsAgeEval: 7 * 10 - 10 - 7 + (12 - 7) = 57-1 off-by-one rsAgeEval: cuberoot(7+log(10))*(12/cuberoot(10+17)*7 = 57+1 off-by-one rsAgeEval: (7 + 10 + 12) * (log(10) + log(17 - 7)) = 57+1 * TempeHiker was 57 years young when he saw this electronic sign. rsModeEval: mod(17 - 10, 7, 12 - 10) = 7 rsRangeEval: range(7 , 7, 10, 12, 17) = 10

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

**Created:** 26 May 2015 (posted 27 May 2015)

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