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Greek letters

The upper case versions of these Greek letters are only shown when they differ from Roman upper case letters.

Symbol Command Name
α \alpha Alpha
β \beta Beta
γ, Γ \gamma, \Gamma Gamma
δ, Δ \delta, \Delta Delta
ε, ϵ \varepsilon, \epsilon Epsilon
ζ \zeta Zeta
η \eta Eta
θ, ϑ \theta, \vartheta Theta
ι \iota Iota
κ \kappa Kappa
λ, Λ \lambda, \Lambda Lambda
μ \mu Mu
ν \nu Nu
ξ, Ξ \xi, \Xi Xi
π, Π \pi, \Pi Pi
ρ, ϱ \rho, \varrho Rho
σ, Σ \sigma, \Sigma Sigma
τ \tau Tau
ϕ, φ, Φ \phi, \varphi, \Phi Phi
χ \chi chi
ψ, Ψ \psi, \Psi Psi
ω, Ω \omega, \Omega Omega

For omicron, if you are using LaTeX’s default Computer Modern font then enter omicron just as ‘o’ or ‘O’. If you like having the name or if your font shows a difference then you can use something like \newcommand\omicron{o}. The package unicode-math has \upomicron for upright omicron and \mitomicron for math italic.

While the set membership relation symbol ∈ generated by \in is related to epsilon, it is never used for a variable.

© 2007–2018 Karl Berry
Public Domain Software
http://latexref.xyz/Greek-letters.html