I wasn’t entirely happy with any of the Greek letter charts I’ve found on the Internet (I need one that looks good on a projector), so I made my own.
Omikron is o as in “dog” and omega is o as in “low”.
The Greek alphabet is on my list of Things I Wish My Teachers Had Mentioned In Math Class, because it just started getting thrown at me as variable names and I would look at the squiggles for, say, “xi” and my brain would explode.
Incidentally, the obsolete symbol “sampi”
looks very nice. Does anyone know if it has been used in a math text before?