BARS::Dog and Skateboarding Signs in Downtown Tucson, Arizona

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

The park signs say...

   +---------------------+
   |  Keep Dogs Leashed  |
   |    (T.C.C. 4-97)    |
   | Pick Up Dog Litter  |
   |    (T.C.C. 4-102)   |
   |    Skateboarding    |
   |      Prohibited     |
   | Tucson Code Section |
   |        21-3-7       |
   +---------------------+
   the numbers are:  4  97  4  102  21  3  7

   the math is:  (21 / 7) * 4 + sqrt(4) = sqrt(102 + 97 - 3)

   rsPiEval:  ((102 - 97 - 4) * (4 - 3) + 21) / 7 = Pi
   * 22/7 approximates Pi (3.14) rounded to nearest hundredth

   rsPhiEval:  (4 / 4 + sqrt(102 - 97)) / ((21 / 7)! / 3) = Phi
   * Phi is the golden ratio and it approximates 1.61803399

   more math:  (21 - ((102 - 97) * 4)) * 4 + 3 = 7

   more math:  21 - 102 + 97 - 4 - sqrt(4) - 3 = 7

   There are great numbers in this BARS and many more equations 
   to be found, but MathBabbler will find them later.  In other 
   words, this BARS is to be continued!

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 13 April 2009

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