This road sign was located on AZ Hwy-77 in Winkelman, Arizona.

```   +----------------+
| Mammoth     20 |
| Jct SR 79   43 |
| Tucson      68 |
+----------------+
```
```   the numbers are:  20  43  68  79

the math is:  floor(summation(68, 79) / 43) = 20

observe...
summation(68, 79) = 882
882 / 43 = 20.51162790
floor(20.512) = 20  ...or...  truncate(20.512, 0) = 20

rsHwyEval:  79 - sqrt(20 / sqrt((68 - 43))) = 77
This road sign is on AZ Hwy-77.

observe...
68 - 43 = 25
sqrt(25) = 5
20 / 5 = 4
sqrt(4) = 2

rsAgeEval???  expression = 48
This road sign was found when MathBabbler was 48.
```
##### Update::2008.05.05

The following math was inserted after the `split_into_squares_sum(n)` function was created during April of 2008.

```   split_into_squares_sum(20) = { 16, 4 }
split_into_squares_sum(68) = { 64, 4 }

the numbers become:  16  4  36  64  4

the math is:  sqrt(79 - 43 + 64) + 4 + sqrt(4) = 16

observe...
79 - 43 + 64 = 100
sqrt(100) = 10
sqrt(4) = 2
```
##### Update::2008.05.16

On 1 May 2008, MathBabbler wrote this C++ program to convert a string into a number. The program converts the string into the digits that MathBabbler needs to press on his cell phone in order to send the string as a text message. The number of the string-to-number conversion is the sum of the digits digits needed to send to enter the string as a text message.

```   mammoth: 6266666844      (sums to 54)
sr: 7777777         (sums to 70)
tucson: 888222777766666 (sums to 109)
jct: 52228           (sums to 19)
```
```   the numbers become:  20  79  43  68  54  70  109  19

the math is: (20 + 79) - (109 - 19) = (68 - 43) - (70 - 54)
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 21 May 2006