### BARS::Highway Signs in Globe, Arizona

These highway signs were on eastbound US Hwy-60 in Globe, Arizona.

The highway signs say...

```   +-------+   +-------+
| East  |   | East  |
| US 60 |   | US 70 |
+-------+   +-------+
+-------+   +-------+
| North |   | South |
| AZ 77 |   | AZ 77 |
+-------+   +-------+
```
```   the numbers are:  60  70  77  77

the math is:  log(70 - 60) * 77 = 77

observe...
70 - 60 = 10
log(10) = 1
```

These signs cannot be submitted to RoadSignMath.com because RSM discountinued allowing the `log()` function during April of 2006.

MathBabbler supported this change by RSM because the `log(n)` function comes with a free `10`. To do `logyn`, a y is needed, but `log(n)` does not require a ten.

BARS will continue to use the `log(n)` and `ln(n)` functions.

##### Update::2008.04.30

During late-April, 2008, MathBabbler created the `split_into_squares_sum(n)` function.

```   the numbers are:  60  70  77  77

split_into_squares_sum(77) = { 64, 9, 4 }

the numbers become:  60  70  77  64  9  4

the math is:  70 - (sqrt(77 + 4) - sqrt(64) + 9) = 60

observe...
77 + 4 = 81
sqrt(81) = 9
sqrt(64) = 8
9 - 8 + 9 = 10
70 - 10 = 60

This is a RSeval because the highway signs are on US Hwy-60.
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 01 May 2006
`+ added split_into_squares_sum(n) usage` 