boundary/bear — pull request #9 by james-ar (2013-07-01 16:08:54+00:00)
Title: Add math_log/1 and inverse/1 patterns to catch 0.0

inverse/1 bombs on 0.0.

```
1> bear:scan_values([0.039,0.001,0.00,0.028]).
** exception error: an error occurred when evaluating an arithmetic expression
in function bear:scan_values/2
in call from lists:zip/2
```