### BARS::Eastbound I-40 From a Train in Arizona

This road sign is on eastbound I-40 in Arizona. The picture was taken from an eastbound Southwestern Chief on 24 December 2015.

```   +---------------------+
| Jct US-191 South  5 |
| Gallup           47 |
| Albuquerque     187 |
+---------------------+
```
```   the numbers are:  191  5  47  187

the math is:  47 % 5 = sqrt(191 - 187)  {check}

rsCardinalityEval:  sqrt(191 - 187) + 47 % 5 = 4
* There are four numbers in this road sign.

rs37Eval:  47 - 5 * sqrt(191 - 187) = 37
* Why rs37Eval? 37 Heaven @ http://thirty-seven.org

rs42Eval:  47 - 5! / (191 - 187)! = 42
* 42 is the "Answer to Life, the Universe, and Everything"

rsStateEval:  5 + 187 - 191 + 47 = 48
off-by-one rsStateEval:  187 % 47 + 191 % 5 = 48-1
* Arizona was the 48th state admitted to the Union.

off-by-one rsAgeEval:  5 * sqrt(191 - 187) + 47 = 58-1
* MathBabbler was 58 years young when he found this road sign.

BARSfunc rsCardinalityEval:  5! / (47 - 187 / sum_digits(191)) = 4
* There are four numbers in this road sign.
* sum_digits(n) = sum the digits of n
domain:  n must be a prime number
* 191 is prime; sum_digits(191) = 1+9+1 = 11
* 5! / (47 - 187 / 11) = 4

BARSfunc rs37Eval:  (187 - 47) / 5 + sum_digits(191) = 37
* sum_digits(191) = 11; (187 - 47) / 5 + 11 = 37
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 12 January 2016 