1 geometric symbol

⊥ ‖ ∠ ⌒ ⊙ ≡ ≌ △

2 algebraic symbols

∝ ∧ ∨ ~ ∫ ≠ ≤ ≥ ≈ ∞ ∶

3 operation symbol

× ÷ √

4-symbol set

∪ ∩ ∈

Five special symbols

∑π(π)

6 reasoning symbol

| a |⊥∽△∞∩∩≦≦≤∈ⅲ

↑ → ↓ ↖ ↗ ↘ ↙ ‖ ∧ ∨

& amp；

① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩

Γ Δ Θ ∧ Ξ Ο ∏ ∑ Φ Χ Ψ Ω

α β γ δ ε ζ η θ ι κ λ μ ν

ξ ο π ρ σ τ υ φ χ ψ ω

Ⅰ Ⅱ Ⅲ Ⅳ Ⅴ Ⅵ Ⅶ Ⅷ Ⅸ Ⅹ Ⅺ Ⅻ

ⅰ ⅱ ⅲ ⅳ ⅴ ⅵ ⅶ ⅷ ⅸ ⅹ

∈ ∏ ∑ ∕ √ ∝ ∞ ∟ ∠ ∣ ‖ ∧ ∨ ∩ ∪ ∫ ∮

∴ ∵ ∶ ∷ ∽ ≈ ≌ ≈ ≠ ≡ ≤ ≥ ≤ ≥ ≮ ≯ ⊕ ⊙ ⊥

⊿ ⌒ ℃

Index 0 123:

symbolic meaning

∞ infinity

Pippi

The absolute value of the |x| function

Set up and merge

Set intersection

≥ greater than or equal to

≤ less than or equal to

≡ Constant is equal to or congruent with.

Natural logarithm of ln(x)

Logarithm with base 2

Log(x) ordinary logarithm

Integer function on floor (x)

Integer function under ceil(x)

X mod y of remainder

{x} fractional part x-floor(x)

∫f(x)δx indefinite integral

∫ [a: b] The definite integral of f (x) Δ x a to b

[p] If p is true, it is equal to 1, otherwise it is equal to 0.

∑[ 1≤k≤n]f(k) and n can be extended to many situations.

For example, ∑ [n is a prime number] [n

∑∑[ 1≤i≤j≤n]n^2

lim f(x)(x-& gt； ? ) seek the limit

M-order derivative function of f(z) f about z

C(n:m) combination number, where m is taken from n.

P(n:m) permutation number

Divisible by n

M⊥n coprime

A ∈ A a belongs to set A.

# Multiple elements in set A

∈ ∏ ∑ √ ∞ ∠ ∣ ‖ ∧ ∨ ∩ ∪ ∫ ∮ ∴ ∵ ∽

≈ ≌ ≠ ≡ ≤ ≥ ≤ ≥ ⊕ ⊙ ⊥ ?

This is the pronunciation of some of them:

Uppercase and lowercase English phonetic notation international phonetic notation Chinese phonetic notation

Alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha.

Beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta.

Gamma gamma gamma gamma.

△δδδδδδδδδδδδδδδδδδδδδδδδδδδδδδδδ

In mathematics and science, the capitalized δ represents the change of variables.

εεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεε εεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεεε

Zeta Zeta

ηηηηη

Sita Sita

Iota Iota and Taitai

Kappa kappa kappa kappa kappa kappa kappa kappa kappa kappa kappa kappa.

∧λλλλλ

Mu Mu Mumiaomiao

Nunu

ξ ξ Xiksi can plug in.

οοοοοο\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\u\\u\\u\\u\\\u\\\\\u\\\u\\u\\\u

π school

ρ ρ rhorou soft.

Sigma Sigma Sigma Sigma Sigma Sigma Sigma

τ τ τ τ sleeve

υu silon jüsilon Yi Puxi long

Φ Φ Φ fly.

χ χ Zhikai Xi

ψ psi psai Puxi

Omega, omega, omega, omega