1, α, α, α, a:lf, α, angle; Coefficient.

2, β, β, bet, β, magnetic flux coefficient; Angle; Coefficient.

3.γ, γ, γ, ga:m, γ, conductivity (lowercase).

4, delta, delta, delta, delta, change; Density; Refraction.

5.ε, ε, ε, ep`silon, ε, radix of logarithm.

In mathematics

Greek letters are usually used to represent constants, special functions and some specific variables. In the field of mathematics, the meanings of uppercase and lowercase Greek letters are usually different and irrelevant.

Some capitalized Greek letters are the same or very similar to the corresponding Latin letters, so they are not used, such as: A, B, E, Z, H, I, K, M, N, O, P, T, Y, X. In addition, lowercase ι(iota), ο(omicron) and μ (up