Sure, run the speed test. I'm curious to see if my two uses of SQR are slower than the fluffy version yall are using.
EDIT
Lol, you can remove the ,B at the end of my LINE statement though... Oh and for that matter, I can see how this can be made 4 times as fast. Let me know if you actually want to run a test and I'll cook up a different function. Or hell, use the one as-is, I'm still curious.