WooHoo! Thanks for that tip Rick! By looking at the
browser source, I could see that RH was deleting the Δ
entries that I hardcoded, and I also noticed that RH mysteriously
added, to some other unrelated part of the same paragraph, the
  bogus code. At the end of the paragraph in question, it
shows "  For example,       if
the starting trend point...." Don't have a clue what   is
for - nothing shows for it when viewing the paragraph in the
browser.
At any rate, using notepad on the output file, I inserted the
Δ everywhere it needed to go, then removed all spurious
entries for   and the page looks exactly as it should now.
Thanks so much. to both of you, for you wisedom!
ONWARD!
dar2009