Special Characters

The latter is not varpi, it’s varphi a variant of phi

Yes, as I corrected myself above.
This (ϖ) is varpi (I figured out how to make a text version).

How? Inquiring minds and all that.

ϖ will do it in plain HTML, but vBulletin requires you to use the number code ϖ

Quote my post, and it will convert to the symbol.