### BARS::Pi Sign on AZ Hwy-73 in Arizona

This road sign is on prime number AZ Hwy-73 in Arizona.

```   +--------------------------+
| W.M.A.T. Fairgrounds   2 |
| Tonto Lake            41 |
| Pacheta Lake          41 |
| Maverick              39 |
| Drift Fence Lake      44 |
| Reservation Lake      47 |
| Hurricane Lake        45 |
+--------------------------+
```
```   the numbers are:  2  41  41  39  44  47  45

the math is:  (44 - 41)! = 2 + (47 - 45) + (41 - 39)

observe...  44 - 41 = 3  and  3! = 3 * 2 * 1 = 6

rsPiEval:  44 / ((47 - 41) * (41 - 39) + 2) = Pi (3.14)
* 22/7 approximates Pi (3.14) rounded to nearest hundredth

[solve for 'n']  44 / ((47 - 41) * (n - 39) + 2) = Pi (3.14)
```

Note: This road sign was found on the Pi Day 2008 roadtrip.

##### BAB Milestone

This was the 400th BARS (Basic Arithmetic Road Sign). It is also BAB #1461. As of 16 March 2008, approximately 27.4% of all BABs are BARS.

##### Update::2008.10.31

The following math was discovered on 31 October 2008 after this BARS was selected as one of the BARS of the Week for Week #11 of the fall 2008 semester.

```   the numbers are:  2  41  41  39  44  47  45

the math is:  (47 + 45 - 41 - 41) / (44 - 39) = 2

rsPhiEval:  (2 - 41 / 41 + sqrt(44 - 39)) / (47 - 45) = Phi
* Phi is the golden ratio and it approximates 1.61803399

rsHwyEval:  41 + 41 - 2 - (44 - 39) - (47 - 45) = 73
* This sign was found on AZ Hwy-73.

rsAgeEval:  (47 - 39) * (2 * (44 - 41)) + sqrt(45 - 41) = 50
* RoadHacker was 50 years young when he found this sign.

more math:  sqrt(sqrt(44 + 39 - (47 - 45))) - 41 / 41 = 2

more math:  (44 - 41)! - (41 - 39) - (47 - 45)  = 2

more math:  (47 - 41)! / (44 - 39)! - (45 - 41) = 2
```
##### Update::2009.03.08

This BARS was selected to be one of the BARS of the Week for week #8 of the spring 2009 semester.

```   the numbers are:  2  41  41  39  44  47  45

rs42Eval:  (41 + 41) / 2 + log((44 - 39) * (47 - 45)) = 42
* 42 is the "Answer to Life, the Universe, and Everything"

rsAgeEval: (41 + 41) / 2 + (44 - 39) * (47 - 45) = 51
* MathBabbler was 51 years young when he found this equation.

more math:  (cuberoot(47 - 39) + (45 - 41)) / 2 = 44 - 41

[solve for 'n']  (cuberoot(47 - n) + (45 - 41)) / 2 = 44 - 41
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 16 March 2008 