# Greek Alphabet Symbols & Characters: mathematical uses

### The Greek alphabet is widely used in mathematical and scientific equations with letters like psi, rho, eta, mu, omega and many more being widely used.

**Letter & Symbols Includes:**

Greek alphabet
Mathematical symbols
Mathematical constants
Typographical symbols

The Greek alphabet is widely used to demote various constants and values within the scientific and technology arenas. Letters including omega, eta, rho, mu and many more are used to denote a whole range of mathematical, scientific and engineering measures. Everything from resistivity, through to impedance, permeance and ratios of circles and much more.

The Greek alphabet only has 24 letters compared to the Latin based script that uses 26. However the Greek alphabet does have both capital and small versions, and virtually all of the letters are widely used for a variety of different measures.

The different Greek letters have different meanings or they are used to denote different measures as outlined in the list below.

Greek Alphabet Characters and Symbols List |
|||
---|---|---|---|

Greek letter | Greek symbol | Used to denote | |

Capital | Small | ||

Alpha | Α | α | Angles, coefficients, attenuation constant, absorption factor, area |

Beta | Β | β | Angles, coefficients, phase constant |

Gamma | Γ | γ | Complex propagation constant (cap), specific gravity, angles, electrical conductivity, propagation constant |

Delta | Δ | δ | Incrment or decrement, determinant (cap), permittivity (cap), density, angles |

Epsilon | Ε | ε | Dielectric constant, permittivity, electric intensity |

Zeta | Ζ | ζ | Coordinates, coefficients |

Eta | Η | η | Intrinsic impedance, efficiency, surface charge density, hysteresis, coordinates |

Theta | Θ | θ | Angular phase displacement, angles, time constant, reluctance |

Iota | Ι | ι | Unit vector |

Kappa | Κ | κ | Susceptibility, coupling coefficient, thermal conductivity |

Lambda | Λ | λ | Permeance (cap), wavelength, attenuation constant |

Mu | Μ | μ | Permeability, amplification factor (in valves/ vacuum tubes), prefix for the micro multiplier. |

Nu | Ν | ν | Reluctivity, frequency |

Xi | Ξ | ξ | Coordinates |

Omicron | Ο | ο | |

Pi | Π | π | Universally used for 3.1416 . . . . |

Rho | Ρ | ρ | Resistivity, volume charge density, coordinates |

Sigma | Σ | σ | Summation (cap), surface charge density, complex propagation constant, electrical conductivity, leakage coefficient, deviation |

Tau | Τ | τ | Time constant, volume resistivity, time-phase displacement, transmission factor, density |

Upsilon | Υ | υ | |

Phi | Φ | φ | Scalar potential (cap), magnetic flux, angles |

Chi | Χ | χ | Electric susceptibility, angles |

Psi | Ψ | ψ | Dielectric flux, phase difference, coordinates, angles |

Omega | Ω | ω | Electrical resistance (cap), solid angle, angular velocity |

**Note:** The small Greek letter in the alphabet is used except where the notation (cap) is used where the capital version of the Greek letter is used.

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