一些基本的$\LaTeX$字符和运算符，供快速查阅使用
其实就是无聊敲的，参照：LaTeX_symbols.pdf
Math Mode Accents
| â |
ǎ |
| á |
à |
| ā |
a⃗ |
| ȧ |
$\ddot{a}$ |
| ă |
ã |
Greek Letters
| A |
α |
| B |
β |
| Γ |
γ |
| Δ |
δ |
| E |
ϵ |
| Z |
ζ |
| H |
η |
| Θ |
θ |
| I |
ι |
| K |
κ |
| Λ |
λ |
| M |
μ |
| N |
ν |
| Ξ |
ξ |
| O |
ο |
| Π |
pi |
| Σ |
σ |
| T |
τ |
| Υ |
υ |
| Φ |
ϕ |
| X |
χ |
| Ψ |
ψ |
| Ω |
ω |
Binary Operation Symbols
| ± |
∩ |
| ⋄ |
⊕ |
| ∓ |
∪ |
| △ |
⊖ |
| × |
⊎ |
| ▽ |
⊗ |
| ÷ |
⊓ |
| ⊲ |
⊘ |
| * |
⊔ |
| ⊳ |
⊙ |
| ⋆ |
∨ |
| ⊲ |
○ |
| ∘ |
∧ |
| ⊳ |
† |
| • |
\ |
| ⊴ |
‡ |
| ⋅ |
≀ |
| ⊵ |
∐ |
| + |
− |
Relation Symbols
| ≤ |
≥ |
| ≡ |
⊨ |
| ≺ |
≻ |
| ∼ |
⊥ |
| ≼ |
≽ |
| ≃ |
∣ |
| ≪ |
≫ |
| ≍ |
∥ |
| ⊂ |
⊃ |
| ≈ |
⋈ |
| ⊆ |
⊇ |
| ≅ |
⋈ |
| ⊏ |
⊐ |
| ≠ |
⌣ |
| ⊑ |
⊒ |
| ≐ |
⌢ |
| ∈ |
∋ |
| ∝ |
= |
| ⊢ |
⊣ |
| < |
> |
Punctuation Symbols
Arrow Symbols
| ← |
← |
↑ |
| ⇐ |
⇐ |
⇑ |
| → |
→ |
↓ |
| ⇒ |
⇒ |
⇓ |
| ↔︎ |
↔︎ |
↕ |
| ⇔ |
⇔ |
⇕ |
| ↦ |
↦ |
↗ |
| ↩︎ |
↪ |
↘ |
| ↼ |
⇀ |
↙ |
| ↽ |
⇁ |
↖ |
| ⇌ |
⤳ |
|
Miscellaneous Symbols
| … |
⋯ |
| ⋮ |
⋱ |
| ℵ |
′ |
| ∀ |
∞ |
| ℏ |
∅ |
| ∃ |
□ |
| ı |
∇ |
| ¬ |
◇ |
| ȷ |
$\surd$ |
| ♭ |
△ |
| ℓ |
⊤ |
| ♮ |
♣ |
| ℘ |
⊥ |
| ♯ |
♢ |
| ℜ |
∖ |
| ♡ |
ℑ |
| ∠ |
∂ |
| ♠ |
℧ |
Variable-sized Symbols
| ∑ |
⋂ |
⨀ |
| ⋂ |
∏ |
⨂ |
| ∐ |
⨆ |
⨁ |
| ∫ |
⋁ |
⨄ |
| ∮ |
⋀ |
|
Log-like Symbols
| arccos |
arcsin |
| arctan |
arg |
| cos |
cosh |
| cot |
coth |
| csc |
deg |
| det |
dim |
| exp |
gcd |
| hom |
inf |
| ker |
lg |
| lim |
liminf |
| limsup |
ln |
| log |
max |
| min |
Pr |
| sec |
sin |
| sinh |
sup |
| tan |
tanh |
Delimiters
| ⌊ |
⌋ |
| ⌈ |
⌉ |
| ⟨ |
⟩ |
| / |
∖ |
| ⎱ |
⎰ |
| ⟯ |
⟮ |
| $\arrowvert$ |
$\Arrowvert$ |
| $\bracevert$ |
|
Some Other Constructions
| $\widetilde{abc}$ |
$\widehat{abc}$ |
| $\overleftarrow{abc}$ |
$\overrightarrow{abc}$ |
| $\overline{abc}$ |
$\underline{abc}$ |
| $\overbrace{abc}$ |
$\underbrace{abc}$ |
| $\sqrt{abc}$ |
$\sqrt[n]{abc}$ |
| f′ |
$\frac{abc}{xyz}$ |