### BARS::Clearance Sign on US Hwy-60 at 48th St. in Mesa, Arizona

These road signs were found on westbound US Hwy-60 in Mesa, Arizona.

The road signs say...

```   +------------+
|   48th St  |
| 16ft - 4in |
+------------+

the numbers are:  48  16   4

the math is:  48 / 4! = sqrt(sqrt(16))

observe...
4! = factorial(4) = 4 x 3 x 2 x 1 = 24
48 / 24 = 2
sqrt(16) = 4
sqrt(4) = 2
```
##### Zero RSeval

Google.com::Calculator:: 48 / 4! - sqrt(sqrt(16))

These road signs were discovered while finishing a roadtrip to Winkelman. Earlier in the day, while heading east on US Hwy-60, we noticed standalone clearance signs that read `16 ft. - 4 in.`. Upon returning to town, heading west on US Hwy-60, the road signs used in this BARS was the only one that read `16 ft. - 4. in.`; however, the `48th St.` sign complicated the math.

```   if only two numbers...  sqrt(16) = 4
```
##### Off by an Inch

When we initially looked at these road signs for math, we discovered an off-by-one example.

```   48 / 16 = 3      [the 3 needs to be 4]

in this case, we are off by an inch
```

Creator: Gerald D. Thurman [gthurman@gmail.com]
Created: 19 May 2006 