Omicron (letter)

Omicron (Ο ο) is the 15th letter of the Greek alphabet and has a numeric value of 70.

The upper-case letter Ο is used as a symbol for:

• In complexity theory, the asymptotic rate of growth of a function (Big O notation).

See also:

• Alpha - Beta - Gamma - Delta - Epsilon - Digamma - Zeta - Eta - Theta - Iota - Kappa - Lambda - Mu - Nu - Xi - Omicron - Pi - San - Qoppa - Rho - Sigma - Tau - Upsilon - Phi - Chi - Psi - Omega - Sampi