incorrect result with Math.wrap()

Thanks. I'll delve into the code myself some day so that I can help out in fixing these issues, but some day so far seems to have been a moving target ;).

As for the fix, I assume you'll just need to use some threshold when converting floating points as you will never get a perfect mapping. I have some code that I wrote a while back for a similar issue, but I'll have to dig it up though ...