### BARS::Parking Sign at Four Peaks Brewery in Tempe, Arizona

This parking sign is on 8th Street outside of Four Peaks Brewery in Tempe, Arizona.

The parking sign says...

```   +-------------------+
| 90 Minute Parking |
|     8am to 4pm    |
|    Mon Thru Fri   |
|  except holidays  |
+-------------------+
```
```   the numbers are:  90  8  4

the math is:  90 % 8 = sqrt(4)

more math:  90 % 4 = cuberoot(8)

rsAgeEval:  90 - 8 * 4 = 58
* MathBabbler was 58 years young when he found this parking sign.

rsPiEval:  (90 * (8 / 4))° = Pi radians
* 180 degrees = 3.14159265 radians

off-by-one rsStateEval:  90 / sqrt(4) + cuberoot(8) = 48-1
* Arizona was the 48th state admitted to the Union.

off-by-one rs42Eval:  90 / sqrt(4) - cuberoot(8) = 42-1
* 42 is the "Answer to Life, the Universe, and Everything"

off-by-one rs37Eval:  90 % 4! * cuberoot(8) = 37-1
* Why rs37Eval? 37 Heaven @ http://thirty-seven.org

BARSfunc rsCardinalityEval:  spf(90) - sqrt(4) - 8 = 3
* There are three numbers in this parking sign.
* spf(n) = the sum of the prime factors of n
domain: n must be a composite number
* 90 is composite; spf(90) = 2+3+3+5 = 13

BARSfunc math:  sqrt(4)^mult_digits(spf(90)) = 8
* mult_digits(n) = product of the digits of n
domain:  n must be a prime number
* spf(90) = 13; 13 is prime; mult_digits(13) = 1*3 = 3

BARSfunc math:  sum_digits(spf(90)) + 4 = 8
* sum_digits(n) = sum the digits of n
domain:  n must be a prime number
* spf(90) = 13; 13 is prime; sum_digits(13) = 1+3 = 4
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 17 February 2016