Greek Alphabet & Mathematical Symbols
All 24 letters of the Greek alphabet with Uppercase, Lowercase, HTML entity, and scientific meanings in Physics and Mathematics.
| Letter Name | Upper | Lower | Unicode | Entity | Common Physics & Math Usage |
|---|---|---|---|---|---|
| Alpha | Α | α | U+0391 / U+03B1 | α | Angles, acceleration, absorption |
| Beta | Β | β | U+0392 / U+03B2 | β | Beta radiation, sound level |
| Gamma | Γ | γ | U+0393 / U+03B3 | γ | Gamma rays, Lorentz factor |
| Delta | Δ | δ | U+0394 / U+03B4 | δ | Change, difference, discriminant |
| Epsilon | Ε | ε | U+0395 / U+03B5 | ε | Permittivity, arbitrary small value |
| Zeta | Ζ | ζ | U+0396 / U+03B6 | ζ | Riemann zeta function, damping |
| Eta | Η | η | U+0397 / U+03B7 | η | Efficiency, viscosity |
| Theta | Θ | θ | U+0398 / U+03B8 | θ | Plane angle, temperature |
| Iota | Ι | ι | U+0399 / U+03B9 | ι | Inclusion map, matrix |
| Kappa | Κ | κ | U+039A / U+03BA | κ | Curvature, thermal conductivity |
| Lambda | Λ | λ | U+039B / U+03BB | λ | Wavelength, eigenvalue |
| Mu | Μ | μ | U+039C / U+03BC | μ | Micro prefix, friction coefficient |
| Nu | Ν | ν | U+039D / U+03BD | ν | Frequency, kinematic viscosity |
| Xi | Ξ | ξ | U+039E / U+03BE | ξ | Random variable, partition |
| Omicron | Ο | ο | U+039F / U+03BF | ο | Big O notation |
| Pi | Π | π | U+03A0 / U+03C0 | π | Pi constant (3.14159), product operator |
| Rho | Ρ | ρ | U+03A1 / U+03C1 | ρ | Density, resistivity |
| Sigma | Σ | σ | U+03A3 / U+03C3 | σ | Summation operator, standard deviation |
| Tau | Τ | τ | U+03A4 / U+03C4 | τ | Torque, shear stress, proper time |
| Upsilon | Υ | υ | U+03A5 / U+03C5 | υ | Frequency ratios |
| Phi | Φ | φ | U+03A6 / U+03C6 | φ | Golden ratio (1.618), magnetic flux |
| Chi | Χ | χ | U+03A7 / U+03C7 | χ | Chi-squared distribution |
| Psi | Ψ | ψ | U+03A8 / U+03C8 | ψ | Wave function in quantum physics |
| Omega | Ω | ω | U+03A9 / U+03C9 | ω | Ohm electrical resistance, angular velocity |