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Greek Math Symbols
Explore our complete math symbols list and interactive keyboard to lookup meanings, LaTeX codes, and UTF-8 characters for greek math symbols. Uppercase and lowercase Greek letters standardly utilized across mathematical equations, constants, and physics.
Greek Math Symbols Reference Table
| Action | Symbol | Name | Meaning | Example | LaTeX | Unicode |
|---|---|---|---|---|---|---|
| α | Alpha (Lowercase) | Commonly represents angles, significance levels in statistics, or thermal diffusivity. | α = 0.05 | \alpha | U+03B1 | |
| β | Beta (Lowercase) | Represents angles, Type II error rates, regression coefficients, or beta function. | β = 0.20 | \beta | U+03B2 | |
| γ | Gamma (Lowercase) | Euler-Mascheroni constant (0.5772...) or photon/gamma ratio in physics. | γ ≈ 0.577215 | \gamma | U+03B3 | |
| Γ | Gamma (Uppercase) | The Gamma function extending factorial to complex numbers: Γ(n) = (n−1)!. | Γ(5) = 4! = 24 | \Gamma | U+0393 | |
| δ | Delta (Lowercase) | Epsilon-delta limit proofs, Kronecker delta, or Dirac delta distribution. | |x − c| < δ ⟹ |f(x) − L| < ε | \delta | U+03B4 | |
| Δ | Delta (Uppercase) | Represents change/difference (Δx) or the polynomial discriminant (b² − 4ac). | Δy / Δx = slope | \Delta | U+0394 | |
| ε | Epsilon | Arbitrarily small positive quantity in calculus limits; error term in statistics. | ∀ ε > 0, ∃ δ > 0 | \varepsilon \text{ or } \epsilon | U+03B5 | |
| θ | Theta (Lowercase) | Standard notation for angles in trigonometry, polar coordinates, and parametric curves. | sin²θ + cos²θ = 1 | \theta | U+03B8 | |
| λ | Lambda (Lowercase) | Eigenvalues in linear algebra, Poisson rate parameter, or wavelength in physics. | Av = λv | \lambda | U+03BB | |
| μ | Mu (Lowercase) | Population mean in statistics, micro (10⁻⁶) prefix, or measure in measure theory. | μ = (∑ x_i) / N | \mu | U+03BC | |
| π | Pi (Lowercase) | Mathematical constant equal to the ratio of a circle's circumference to diameter (≈ 3.14159). | Circumference = 2πr | \pi | U+03C0 | |
| σ | Sigma (Lowercase) | Population standard deviation in statistics; stress in mechanical physics. | σ = √(Var(X)) | \sigma | U+03C3 | |
| Σ | Sigma (Uppercase) | Summation notation over indices; covariance matrix in multivariable statistics. | ∑_{k=1}^n k | \Sigma | U+03A3 | |
| ω | Omega (Lowercase) | Angular frequency in physics, first infinite ordinal in set theory. | ω = 2πf | \omega | U+03C9 | |
| Ω | Omega (Uppercase) | Sample space in probability; Ohm resistance in physics; asymptotic lower bound in computer science. | Ω = {Heads, Tails} | \Omega | U+03A9 | |
| τ | Tau (Circle Constant) | Circle constant equal to 2π ≈ 6.28318 radians in a full turn. | τ = 2π ≈ 6.2832 | \tau | U+03C4 |