LIST OF LETTERS USED IN MATHEMATICS AND SCIENCE

Some common conventions:

★ Intensive quantities in physics are usually denoted with minuscules, while extensive are denoted with capital letters.

★ Most symbols are written in italics.

★ Vectors are bold.

★ Sets of numbers are blackboard bold.

Contents

Latin

Greek

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Latin

Å - Ångström,
'A' - Ampere, Area, a Blood type, a Spectral type, Vector potential, Work,
'B' - B meson, a Blood type, Boron, Luminance, Magnetic field, a Spectral type,
'C' - Carbon, Degrees Celsius, Set of complex numbers, Coulomb, Molar heat capacity ('C'_p), a Programming language, Specific heat capacity,
'D' - Deuterium, Differential operator, Electric displacement,
'E' - Electric field, Energy, SI prefix: (exa-), Expected value,
'F' - degrees Fahrenheit, Farad, Fluorine, Force, Helmholtz free energy, a Spectral type,
'G' - Einstein tensor, SI prefix: (giga-), Gibbs free energy, Gravitational constant, Green's function, Momentum, a Spectral type,
'H' - Auxiliary magnetic field, Enthalpy, Hamiltonian, Hankel function, Heaviside step function, Henry, Higgs boson, Homology group, Hubble constant, Hydrogen, Set of Quaternions,
'I' - Current, Iodine, Impulse, Luminous intensity, Moment of inertia,
'J' - Angular momentum, Bessel function of the first kind, Current, Joule,
'K' - Kaon, Kelvin, Potassium, Sectional curvature,a Spectral type,
'L' - Angular momentum, Inductance, Lagrangian, Litre, a Spectral type,
'M' - Magnetization, Mass, SI prefix: (mega-), a Spectral type, Torque,
'N' - Avogadro's number ('N'_A), Bessel function of the second kind, Set of natural numbers, Newton, Nitrogen, Normal distribution, Normal vector,
'O' - Big O notation, a Blood type, Oxygen, a Spectral type,
'P' - Legendre polynomial, Luminous flux, Phosphorus, Polarization, Power, Pressure, Probability, Projection,
'Q' - Electric charge, (Quantity of) heat, Set of rational numbers, Flow rate,
'R' - Curvature tensor, Electrical resistance, Radius, Set of real numbers,
'S' - Area, Entropy, Siemens, Sphere, Spin operator, Sulfur, Symmetric group,
'T' - a Spectral type, Temperature, Tesla, Tritium,
'U' - Potential energy, Uranium, Unitary operator,
'V' - Potential energy, Vanadium, Volt, Voltage, Volume,
'W' - Energy, Lambert's W function, Tungsten, Watt, W boson, Work, Work function,
'X' - Random variable,
'Y' - Bessel function of the second kind, SI prefix: (yotta-), Yttrium,
'Z' - Atomic number, Impedance, Set of integers, Partition function (statistical mechanics), Partition function (quantum field theory), Z boson, SI prefix: (zetta-),
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'a' - SI prefix: (atto-), Acceleration, Reflectance,
'b' - Bottom quark,
'c' - SI prefix: (centi-), Charm quark, Speed of light, Speed of sound,
'd' - SI prefix: (deci-), Distance, Down quark, Infinitesimal quantity, differential operator,
'e' - Napier's constant, Electron, Electric charge,
'f' - SI prefix: (femto-), Frequency,
'g' - gram, Gravitational acceleration, Gravitational field, Distance metric of spacetime,
'h' - Height, Hour, Planck's constant, Spherical Hankel function,
'i' - Imaginary unit, Unit vector, Current,
'j' - Current and current density, Imaginary unit, Radiant intensity, Spherical Bessel function of the first kind, Unit vector,
'k' - Boltzmann constant ('k'_B), Imaginary unit (quaternion), SI prefix: (kilo-), Wave vector, Unit vector,
'l' - Length, Litre, Mean free path,
'm' - magnitude, Mass, SI prefix: (milli-), Metre, Minute,
'n' - SI prefix: (nano-), Neutron, Refractive index, Spherical Bessel function of the second kind,
'o' - small o notation.
'p' - Electric dipole moment, Momentum, SI prefix: (pico-), Proton,
'q' - Electric charge, Generalized coordinate,
'r' - Position (vector), Radial polar coordinate, Radius,
's' - Second, Strange quark,
't' - Period, Time, Top quark,
'u' - Up quark,
'v' - Velocity,
'w' - Velocity,
'x' - Position coordinate,
'y' - Position coordinate, SI prefix: (yocto-),
'z' - Complex number, Position coordinate, SI prefix: (zepto-),

Greek

'Β' - Beta function,
'Γ' - Angular momentum, Gamma function, Christoffel symbols,
'Δ' - A macroscopic change in the value of a variable, Laplace operator, Delta particle
'Θ' - Heaviside step function,
'Λ' - Iwasava algebra, Lorentz transformation, Lambda Hyperon
'Ξ' - Cascade Hyperon
'Π' - Product,
'Σ' - Sum, Surface, Sigma Hyperon
'Φ' - Alternative symbol for Quantum mechanical wavefunction,
'Ψ' - Quantum mechanical wavefunction
'Ω' - Chaitin's constant, Ohm, Solid angle, Omega Hyperon
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'α' - Alpha particle, Fine structure constant, Angular acceleration,
'β' - Beta particle, Inverse temperature,
'γ' - Euler-Mascheroni constant, Gamma-ray (Photon), Photon, Relativistic gamma factor,
'δ' - Dirac delta function, Infinitesimal quantity, Kronecker delta,
'ε' - Infinitesimal quantity, Permittivity,
'ζ' - Damping Ratio, Riemann zeta function
'η' - Distance metric of flat spacetime, Efficiency, Dynamic viscosity,
'θ' - Angle, Angular polar coordinate, Temperature,
'ι' -
'κ' - Gravitational constant,
'λ' - Half life, Lagrangian multiplicator, Lambda expression,
Thermal conductivity, Wavelength,
'μ' - Absorption coefficient, Chemical potential, Magnetic dipole moment, Mean, SI prefix: (micro-), Micron, Muon, Permeability, Reduced mass,
'ν' - Frequency, Kinematic viscosity, Neutrino,
'ξ' -
'ο' -
'π' - Fundamental group, Conjugate momentum, Homotopy groups, Number π, Pion, Prime-counting function, Projection
'ρ' - Density, Electrical resistivity, Radial polar coordinate,
'σ' - Cross section, Electrical conductivity, Spin, Standard deviation, Stefan-Boltzmann constant,
'τ' - Tau lepton, Torque, Shear stress, Time constant
'υ' -
'φ' - Angular polar coordinate, Electric potential, Euler's totient function, Golden mean, Phase, Potential energy,
'χ' - Electric susceptibility,
'ψ' - Quantum mechanical wavefunction, J/ψ particle
'ω' - Frequency (in radians/s), angular velocity,

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'Ш' - Shafarevich-Tate group ('Ш'(''G'')),
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'ℵ' - Cardinality of infinite sets
'ב' - Cardinality of infinite sets
'∂' - Partial derivative.