BARS::Sign Seen On The Great Food Truck Race

This road sign was seen while watching the Food Network's "The Great Food Truck Race."

The road sign says...

   +------------------------+
   | I-90   I-39  US Hwy-51 |
   | Rockford       Chicago |
   +------------------------+
   the numbers are:  90  39  51

   the math is:  90 = 39 + 51
   
   rsCardinalityEval:  gcf(90, 39, 51) = 3
   * There are three numbers in this sign.

   rsPiRadiansEval:  (90 + 39 + 51)° = Pi radians
   * 180 degrees = 3.14159265 radians

   BARSfunc rsDupEval:  90 % 39 = 51 - dup(39)
   * dup(n) = n       domain: all real numbers

   * spf(n) = the sum of the prime factors of n
     domain: n must be a composite number
   * 90, 39, 51 are all composite numbers
   * spf(90) = 2+3+3+5 = 13
   * spf(39) = 3+13 = 16
   * spf(51) = 3+17 = 20

   BARSfunc rs37Eval:  90 - 51 - sqrt(sqrt(spf(39))) = 37
   * Why rs37Eval? 37 Heaven @ http://thirty-seven.org

   BARSfunc rs42:  90 - 51 + sqrt(sqrt(spf(39))) = 42-1
   * 42 is the "Answer to Life, the Universe, and Everything"

   BARSfunc off-by-one rsAgeEval: spf(90) + spf(39) + spf(51) = 58+1
   * MathBabbler was 58 years young when he saw this sign.
     Note: MathBabbler was closer to 59 than 58.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 16 February 2016

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