Greek Small Letter Omicron

ο
Symbol Format Data
ο Code Point
U+03BF
TeX
\omicron
omicron SVG
Symbol Table

Usage

The Greek small letter (omicron) is visually very similar to the Latin small letter o and the digit 0 (zero), so it is rarely used in math.

Related

capital omicron

The Greek capital letter Ο (omicron).