| 文本/数学模式通用符号 |
表示 |
| { } \{\} {
} |
\{ \} |
| % \% % |
\% |
| … \dots … |
\dots |
| ⋯ \cdots ⋯ |
\cdots |
| 希腊字母 |
表示 |
| α \alpha α |
\alpha |
| θ \theta θ |
\theta |
| υ \upsilon υ |
\upsilon |
| β \beta β |
\beta |
| ϑ \vartheta ϑ |
\vartheta |
| π \pi π |
\pi |
| ϕ \phi ϕ |
\phi |
| γ \gamma γ |
\gamma |
| ι \iota ι |
\iota |
| ϖ \varpi ϖ |
\varpi |
| φ \varphi φ |
\varphi |
| δ \delta δ |
\delta |
| κ \kappa κ |
\kappa |
| ρ \rho ρ |
\rho |
| χ \chi χ |
\chi |
| ϵ \epsilon ϵ |
\epsilon |
| λ \lambda λ |
\lambda |
| ϱ \varrho ϱ |
\varrho |
| ψ \psi ψ |
\psi |
| ε \varepsilon ε |
\varepsilon |
| μ \mu μ |
\mu |
| σ \sigma σ |
\sigma |
| ω \omega ω |
\omega |
| ζ \zeta ζ |
\zeta |
| ν \nu ν |
\nu |
| ς \varsigma ς |
\varsigma |
| η \eta η |
\eta |
| ξ \xi ξ |
\xi |
| τ \tau τ |
\tau |
| Γ \Gamma Γ |
\Gamma |
| Λ \Lambda Λ |
\Lambda |
| Σ \Sigma Σ |
\Sigma |
| Ψ \Psi Ψ |
\Psi |
| Δ \Delta Δ |
\Delta |
| Ξ \Xi Ξ |
\Xi |
| Υ \Upsilon Υ |
\Upsilon |
| Ω \Omega Ω |
\Omega |
| Θ \Theta Θ |
\Theta |
| Π \Pi Π |
\Pi |
| Φ \Phi Φ |
\Phi |
| Γ \varGamma Γ |
\varGamma |
| Λ \varLambda Λ |
\varLambda |
| Σ \varSigma Σ |
\varSigma |
| Ψ \varPsi Ψ |
\varPsi |
| Δ \varDelta Δ |
\varDelta |
| Ξ \varXi Ξ |
\varXi |
| Υ \varUpsilon Υ |
\varUpsilon |
| Ω \varOmega Ω |
\varOmega |
| Θ \varTheta Θ |
\varTheta |
| Π \varPi Π |
\varPi |
| Φ \varPhi Φ |
\varPhi |
| 二元关系符 |
表示 |
| ≤ \leq ≤ |
\leq 或 \le |
| ≥ \geq ≥ |
\geq 或 \ge |
| ≡ \equiv ≡ |
\equiv |
| ≪ \ll ≪ |
\ll |
| ≫ \gg ≫ |
\gg |
| ∼ \sim ∼ |
\sim |
| ⊂ \subset ⊂ |
\subset |
| ⊃ \supset ⊃ |
\supset |
| ≈ \approx ≈ |
\approx |
| ⊆ \subseteq ⊆ |
\subseteq |
| ⊇ \supseteq ⊇ |
\supseteq |
| ⋈ \Join ⋈ |
\Join 或 \bowtie |
| ∈ \in ∈ |
\in |
| ∋ \ni ∋ |
\ni 或 \owns |
| ∝ \propto ∝ |
\propto |
| ∣ \mid ∣ |
\mid |
| ∥ \parallel ∥ |
\parallel |
| ∉ \notin ∈/ |
\notin |
| ≠ \neq = |
\neq 或 \ne |
| ◃ \triangleleft ◃ |
\triangleleft |
| ⋅ \cdot ⋅ |
\cdot |
| ÷ \div ÷ |
\div |
| ▹ \triangleright ▹ |
\triangleright |
| × \times × |
\times |
| ∖ \setminus ∖ |
\setminus |
| ⋆ \star ⋆ |
\star |
| ∪ \cup ∪ |
\cup |
| ∩ \cap ∩ |
\cap |
| ∗ \ast ∗ |
\ast |
| ∘ \circ ∘ |
\circ |
| ∨ \vee ∨ |
\vee |
| ∨ \lor ∨ |
\lor |
| ∧ \wedge ∧ |
\wedge 或 \land |
| ∙ \bullet ∙ |
\bullet |
| ⊕ \oplus ⊕ |
\oplus |
| ⊖ \ominus ⊖ |
\ominus |
| ⊙ \odot ⊙ |
\odot |
| ⊗ \otimes ⊗ |
\otimes |
| ◯ \bigcirc ◯ |
\bigcirc |
| ⨿ \amalg ⨿ |
\amalg |
| △ \bigtriangleup △ |
\bigtriangleup |
| ▽ \bigtriangledown ▽ |
\bigtriangledown |
| ⊲ \lhd ⊲ |
\lhd |
| ⊳ \rhd ⊳ |
\rhd |
| 巨算符 |
表示 |
| ∑ \sum ∑ |
\sum |
| ⋃ \bigcup ⋃ |
\bigcup |
| ⋁ \bigvee ⋁ |
\bigvee |
| ∏ \prod ∏ |
\prod |
| ⋂ \bigcap ⋂ |
\bigcap |
| ⋀ \bigwedge ⋀ |
\bigwedge |
| ∐ \coprod ∐ |
\coprod |
| ⨆ \bigsqcup ⨆ |
\bigsqcup |
| ∫ \int ∫ |
\int |
| ∮ \oint ∮ |
\oint |
| ⨀ \bigodot ⨀ |
\bigodot |
| ⨁ \bigoplus ⨁ |
\bigoplus |
| ⨂ \bigotimes ⨂ |
\bigotimes |
| ∬ ∭ \iint \quad \iiint ∬∭ |
\iint \iiint |
| 数学重音符号 |
表示 |
| a ^ \hat{a} a^ |
\hat{a} |
| a ˇ \check{a} aˇ |
\check{a} |
| a ~ \tilde{a} a~ |
\tilde{a} |
| a ˊ \acute{a} aˊ |
\acute{a} |
| a ˋ \grave{a} aˋ |
\grave{a} |
| a ˘ \breve{a} a˘ |
\breve{a} |
| a ˉ \bar{a} aˉ |
\bar{a} |
| a ⃗ \vec{a} a
|
\vec{a} |
| a ˚ \mathring{a} a˚ |
\mathring{a} |
| a ˙ a ¨ \dot{a} \quad \ddot{a} a˙a¨ |
\dot{a} \ddot{a} |
| A A A ^ \widehat{AAA} AAA
|
\widehat{AAA} |
| A A A ~ \widetilde{AAA} AAA
|
\widetilde{AAA} |
| A B → \overrightarrow{AB} AB
|
\overrightarrow{AB} |
| A B → \underrightarrow{AB}
AB |
\underrightarrow{AB} |
| A B ← \overleftarrow{AB} AB
|
\overleftarrow{AB} |
| A B ← \underleftarrow{AB}
AB |
\underleftarrow{AB} |
| A B ↔ \overleftrightarrow{AB} AB
|
\overleftrightarrow{AB} |
| A B ↔ \underleftrightarrow{AB}
AB |
\underleftrightarrow{AB} |
| 箭头 |
表示 |
| ← \leftarrow ← |
\leftarrow 或 \gets |
| ⟵ \longleftarrow ⟵ |
\longleftarrow |
| → \rightarrow → |
\rightarrow 或 \to |
| ⟶ \longrightarrow ⟶ |
\longrightarrow |
| ↔ \leftrightarrow ↔ |
\leftrightarrow |
| ⟷ \longleftrightarrow ⟷ |
\longleftrightarrow |
| ⇐ \Leftarrow ⇐ |
\Leftarrow |
| ⟸ \Longleftarrow ⟸ |
\Longleftarrow |
| ⇒ \Rightarrow ⇒ |
\Rightarrow |
| ⟹ \Longrightarrow ⟹ |
\Longrightarrow |
| ⇔ \Leftrightarrow ⇔ |
\Leftrightarrow |
| ⟺ \Longleftrightarrow ⟺ |
\Longleftrightarrow |
| ↼ \leftharpoonup ↼ |
\leftharpoonup |
| ⇀ \rightharpoonup ⇀ |
\rightharpoonup |
| ↽ \leftharpoondown ↽ |
\leftharpoondown |
| ⇁ \rightharpoondown ⇁ |
\rightharpoondown |
| ⇌ \rightleftharpoons ⇌ |
\rightleftharpoons |
| ⟺ \iff ⟺ |
\iff |
| ↑ \uparrow ↑ |
\uparrow |
| ↓ \downarrow ↓ |
\downarrow |
| ↕ \updownarrow ↕ |
\updownarrow |
| ⇑ \Uparrow ⇑ |
\Uparrow |
| ⇓ \Downarrow ⇓ |
\Downarrow |
| ⇕ \Updownarrow ⇕ |
\Updownarrow |
| ↗ \nearrow ↗ |
\nearrow |
| ↘ \searrow ↘ |
\searrow |
| ↙ \swarrow ↙ |
\swarrow |
| ↖ \nwarrow ↖ |
\nwarrow |
| 定界符 |
表示 |
| ⌊ \lfloor ⌊ |
\lfloor |
| ⌋ \rfloor ⌋ |
\rfloor |
| ⌉ \rceil ⌉ |
\rceil |
| ⌈ \lceil ⌈ |
\lceil |
| ⟮ \lgroup ⟮ |
\lgroup |
| ⟯ \rgroup ⟯ |
\rgroup |
| ⎰ \lmoustache ⎰ |
\lmoustache |
| ⎱ \rmoustache ⎱ |
\rmoustache |
| 其它符号 |
表示 |
| ∀ \forall ∀ |
\forall |
| ∃ \exists ∃ |
\exists |
| ′ \prime ′ |
\prime |
| ∞ \infty ∞ |
\infty |
| ∇ \nabla ∇ |
\nabla |
| △ \triangle △ |
\triangle |
| □ \Box □ |
\Box |
| ◊ \Diamond ◊ |
\Diamond |
| ∠ \angle ∠ |
\angle |
| √ \surd √ |
\surd |
| ¬ \neg ¬ |
\neg 或 \lnot |
| ∵ \because ∵ |
\because |
| ∴ \therefore ∴ |
\therefore |
参考资料：
1、一份（不太）简短的 LATEX 2ε 介绍
2、【持续更新】Markdown中数学公式及符号整理