@Todd Zuercher, @ArcEye, @andypugh
Thank you all. The mist has lifted from my eyes. Following Andy's link, I now put an (AXIS, stop) comment--I interpet that to mean "stop helping" :^)--on the line immediately before the ACOS and the script was read in just fine.
(Just discovered Named Parameters #<localvar>, #<_globalvar>, so I'm doing a complete rewrite, again. "You can always tell a programmer; but you cain't tell him much...")
Big Thanks!
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clunc