Challenges

[Dav]

Weird, I get an "Illegal Function on Line 22" crash.

x2 = Abs(Sqr(r2 - y2 * y2)) doesn't work on MacOS?  

Hmm, I think that is the same radius < 1 error that happened when we were testing out the filled circle routine last year, some mac users had that.  See if this clear it up.  Add this between line 19 and 20, to keep rad from being 0.

if rad < 1 then rad = 1

- Dav