### BARS::8 Miles From "Hole In The Wall" in California

This road sign is in the Mojave National Preserve in California.

The road sign says...

```   +------------------------+
| Hole In The Wall       |
|   Campground      7 -> |
|   Visitor Center  8 -> |
| Mitchell Caverns 22 -> |
| <- Kelso         23    |
+------------------------+
```
```   the numbers are:  7  8  22  23

the math is:  22 + 8 - 7 = 23

rsPiEval:  22 / sqrt(7 * (23 % 8)) = Pi
* 22/7 approximates Pi (3.14) rounded to nearest hundredth

rsPiEval:  (7 + 23) * (22 % 8) degrees = Pi radians

rs42Eval:  22 * sqrt(sqrt(23 - 7)) - cuberoot(8) = 42
* 42 is the "Answer to Life, the Universe, and Everything"

rsBARSfunc math:  8 - 7 = log(reverse_digits(23) - 22)
* reverse_digits(n) = the digits of n reversed
* domain:  n must be a prime number
* 23 is a prime number; reverse_digits(23) = 32

off-by-one rsStateEval:  22 + 23 - 8 - 7 = 31-1
* California was the 31st state admitted to the Union.

off-by-one rsAgeEval:  22 + 23 + 8! / 7! = 52+1
* RoadHacker was 52 years young when he found this road sign.
```

Note: This road sign was found the day after Pi Day 2010.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 17 March 2010

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