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Greek Alphabet


Letter Name Usage
Α α alpha angle
Β β beta angle
Γ γ gamma monitor nonlinearity, Generalization of factorial, angle
Δ δ delta Difference, impulse signal (Dirac delta), angle
Ε ε epsilon infinitesimal quantity, dialectric susceptibility
Ζ ζ zeta complex Riemann function
Η η eta -
Θ θ theta angle
Ι ι iota -
Κ κ kappa -
Λ λ lambda wavelength, length
Μ μ mu magnetic susceptibility
Ν ν nu frequency (in quantum theory)
Ξ ξ xi -
Ο ο omicron -
Π π pi Product, ratio of circumference to diameter
Ρ ρ rho density
Σ σ sigma Sum
Τ τ tau -
Υ υ upsilon -
Φ φ phi angle
Χ χ chi -
Ψ ψ psi Heisenberg wave function
Ω ω omega angular velocity