I forgot to change the bounds in the do loop in hutch_list_pixel_sq to ints instead of reals, so I fixed that. I also added the same bounds into hutch_list_pixel but I still do the check to see if it is in the circle range. I would like to do away with even that if statement because it would save some calculations, but I dont know how to do it better than I am now. I also deleted the other algorithm because even though I dont entirely understand it, I dont think you can do a helluva lot better than mine. I suppose I could be wrong, though. Still, I dont think so :)