These airport signs are at Sky Harbor International Airport in Phoenix, Arizona.

The airport signs say...

+-------------------+ | P Terminal 3 | | P West Economy | | C Cell Phone Lot | | Terminal 2 | +-------------------+ | West to 24th St | | Downtown Phoenix | | Rental Car Center | | I-10 I-17 AZ-51 | | West to 24th St | +-------------------+ | Terminal 3 | +-------------------+the numbers are: 2 3 3 10 17 24 51 the math is: 24 + 17 + 10 + 2 * (3 - 3) = 51 more math: 2^3 * cuberoot(51 - 24) + 3 - 10 = 17 more math: mode(3, 2, 10, 17, 3) = cuberoot(51 - 24) more math: 51 - 24 - 17 - 2 - 3! + log(10) = 3 rsAgeEval: 51 - 24 + 17 + 3 * (3 + 2) * log(10) = 59 * MathBabbler was 59 years young when he found these signs. rs37Eval: 51 / 17 + 10 + 24 * (2 - 3 / 3) = 37 * Whyrs37Eval? 37 Heaven @ http://thirty-seven.org rs42Eval: 51 - 17 * 3 + 10 + 24 + 2^3 = 42 * 42 is the "Answer to Life, the Universe, and Everything" rsPiEval: (51 - 17 + 3! + 3! - 2) / (24 - 10) ~= Pi * 22/7 approximates Pi rounded to nearest hundredth (3.14) * 3.1415926535897932384626 rsPhiEval: (3 / 3 + sqrt(10 / cuberoot(24 / (51 / 17)))) / 2 = Phi * Phi is the golden ratio and it approximates 1.61803399 rsStateEval: (51 - 3) * (2 - ((10 + 17 - 24) / 3)) = 48 * Arizona was the 48th state admitted to the Union. rsCardinalityEval: 51 / 3 - 17 + 10 / cuberoot(24 / 3) + 2 = 7 * There are seven numbers in these signs. rsMaxTweetLenEval: 51 * 3 - (17 - (24 - 10) / 2 + 3) = 140 * The maximum length of a tweet is 140 characters.

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

**Created:** 16 January 2017

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