Greek letters in LaTeX

All Greek letters are available in math mode. Lowercase use \alpha, uppercase use \Alpha (capitalized command).

Quick answer

latex

$\alpha$  $\beta$  $\gamma$  $\delta$  $\omega$
$\Gamma$  $\Delta$  $\Sigma$  $\Omega$

Lowercase Greek letters

Symbol	Command	Symbol	Command
α	\alpha	β	\beta
γ	\gamma	δ	\delta
ϵ	\epsilon	ε	\varepsilon
ζ	\zeta	η	\eta
θ	\theta	ϑ	\vartheta
ι	\iota	κ	\kappa
λ	\lambda	μ	\mu
ν	\nu	ξ	\xi
π	\pi	ϖ	\varpi
ρ	\rho	ϱ	\varrho
σ	\sigma	ς	\varsigma
τ	\tau	υ	\upsilon
ϕ	\phi	φ	\varphi
χ	\chi	ψ	\psi
ω	\omega

Uppercase Greek letters

Only letters that differ from their Latin equivalents have dedicated commands. A, B, E, Z, H, I, K, M, N, O, P, T, X are just A, B, etc.

Symbol	Command	Symbol	Command
Γ	\Gamma	Δ	\Delta
Θ	\Theta	Λ	\Lambda
Ξ	\Xi	Π	\Pi
Σ	\Sigma	Υ	\Upsilon
Φ	\Phi	Ψ	\Psi
Ω	\Omega

Variant forms

latex

$\epsilon$ vs $\varepsilon$   % epsilon variants
$\theta$   vs $\vartheta$    % theta variants
$\phi$     vs $\varphi$      % phi variants
$\pi$      vs $\varpi$       % pi variants
$\rho$     vs $\varrho$      % rho variants
$\sigma$   vs $\varsigma$    % sigma variants

Greek in text mode

Greek letters are math-mode only by default. For upright Greek in text, use the textgreek or upgreek packages.

latex

% Always works (math mode):
The parameter $\alpha$ controls the rate.

% Upright Greek in text (upgreek package):
\usepackage{upgreek}
The value \upalpha{} was measured.

Greek letters in LaTeX

Lowercase Greek letters

Uppercase Greek letters

Variant forms

Greek in text mode

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