This hours sign is at the Scottsdale Public Library-Civic Center Library located in downtown Scottsdale, Arizona. MathBabbler saw the sign when he attended the Scottsdale Science Cafe on 18 March 2014.

The hours sign says...

+--------------------+ | Library Hours | | Mon-Thurs 9am-9pm | | Fri-Sat 10am-6pm | | Sunday 1pm-5pm | +--------------------+the numbers are: 9 9 10 6 1 5 the math is: 10 + 6 + sqrt(5 - 1) - 9 = 9 more math: 9 * (log(10) + 1 + 5 - 6) = 9 rsAgeEval: (10! / 9!) / 9! * 6 + 1 - 5 = 56 * MathBabbler was 56 years young when he found this equation. rsStateEval: 9 + 9 - 10 * sqrt(6 * (1 + 5)) = 48 * Arizona was the 48th state admitted to the Union. rs42Eval: 6 * 5 + 10 + 1 + 9 / 9 = 42 rs42Eval: 6 * 10 - 5 - 1 - 9 - sqrt(9) = 42 rs42Eval: (9 + 9 + 10) / (5 - 1) * 6 = 42 * 42 is the "Answer to Life, the Universe, and Everything" rs37Eval: 9 + sqrt(9)! + 10 + 6 + 1 + 5 = 37 * Whyrs37Eval? 37 Heaven @ http://thirty-seven.org rsCardinalityEval: sqrt(9 - 5) + sqrt(10 - 6) + sqrt(9) - 1 = 6 rsCardinalityEval: sqrt(9 - 5) + sqrt(10 - 6) + cuberoot(9 - 1) = 6 rsCardinalityEval: mode(sqrt(9), 9, 10, 6, (1 + 5)) = 6 * There are six numbers in this sign. rsPiEval: (10 * sqrt(9) - 5 - sqrt(9)) / (6 + 1) = Pi * 22/7 approximates Pi rounded to nearest hundredth (3.14) * 3.14159265358979323846264338327950 rsPhiEval: (1 + sqrt(5)) / (sqrt(10 - 6) * 9 / 9) = Phi * Phi is the golden ratio and it approximates 1.61803399

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

**Created:** 24 March 2014 (posted 25 March 2014)

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