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What is a mathematical symbol?
The invention and use of mathematical symbols are later than numbers, but their number exceeds numbers. Now there are more than 200 commonly used mathematical symbols.

Types of mathematical symbols:

1, quantity symbol

2. Budget symbols

3. Relationship symbols

4, combined with symbols

5. Natural symbol

Step 6 omit symbols

7. Arrange the combination symbols

8, discrete mathematical symbols

9. Greek letters

α, β, γ, δ, ε, λ, ζ, η, θ, ξ, σ, φ, ψ, ω are all Greek letters.

Pronunciation and common meanings of Greek letters;

Common meanings of pronunciation of Greek letters

α α angle, coefficient, angular acceleration, the first one

β/β magnetic flux coefficient, angle, coefficient

γ-γ/γ conductivity, angle and specific heat capacity ratio

δ/Diota change, heating in chemical reaction, diopter, discriminant in quadratic equation.

The cardinal number of ε ε logarithm, dielectric constant

Zeta coefficient, azimuth, impedance, relative viscosity

η η/η lag coefficient, efficiency

Theta tower temperature, angle

Eota is small, a little.

κ Kempa dielectric constant, adiabatic index

λ λ wavelength, volume, thermal conductivity

μ μ/μ permeability coefficient, micro, dynamic friction coefficient (factor) number, hydrodynamic viscosity, micro (one thousandth), amplification factor (lowercase)

ν/Nuer magnetoresistance coefficient, kinematic viscosity of fluid, photon frequency, stoichiometry

ξ Cauchy/Sai random variable, a specific value unknown in the (small) interval.

ο Euclidean (A ~)M- admissible higher-order infinitesimal functions

Pi Pi = perimeter ÷ diameter

ρ elasticity /Ruo resistance coefficient, polar diameter and density in cylindrical coordinates and polar coordinates.

σ,? Harmonicity, surface density, transconductance, normal stress

τ sleeve/camel time constant, shear stress, 2π (double π)

υ Yu (a ~) Pushilon displacement

φ Frey/Frey magnetic flux, auxiliary angle, lens power, heat flux

χ Kai/Yi Ke statistics have chi-square (χ 2) distribution.

ψ Sai/Pusai/Puxi angular velocity, dielectric flux, ψ function.

Ω Ω/Ω ohm, angular velocity, electric angle of alternating current, mass fraction in chemistry.

Greek alphabet is a letter used in Greek, and it is also widely used in mathematics, physics, biology, astronomy and other disciplines. Greek letters are the earliest letters with vowels in the world. Cyrillic alphabet and Georgian alphabet used in Russian, Ukrainian, etc. Are all developed from the Greek alphabet.