Uses of Greek Letters

Scientists and engineers employ Greek letters to represent a wide variety of quantities. This reduces ambiguity and distinguishes special constants from ordinary variables. The list below summarises common applications for each letter. Click on a letter’s name to visit its dedicated page.

Alpha (Α α)

Beta (Β β)

Gamma (Γ γ)

Delta (Δ δ)

Epsilon (Ε ε)

Zeta (Ζ ζ)

Eta (Η η)

Theta (Θ θ)

Iota (Ι ι)

Kappa (Κ κ)

Lambda (Λ λ)

Mu (Μ μ)

Nu (Ν ν)

Xi (Ξ ξ)

Omicron (Ο ο)

Pi (Π π)

Rho (Ρ ρ)

Sigma (Σ σ)

Tau (Τ τ)

Upsilon (Υ υ)

Phi (Φ φ)

Chi (Χ χ)

Psi (Ψ ψ)

Omega (Ω ω)