基础数学
∞ \infty |
= \neq |
× \times |
÷ \div |
∼ \sim |
± \pm |
∓ \mp |
≤ \leq |
≥ \geq |
≈ \approx |
% % |
∗ \ast |
⋅ \cdot |
≡ \equiv |
≅ \cong |
∈ \in |
∋ \ni |
∃ \exists |
∄ \nexists |
∝ \propto |
∪ \cup |
∩ \cap |
⊥ \perp |
∥ \parallel |
∘ \circ |
希腊字母
α \alpha |
β \beta |
γ \gamma |
δ \delta |
ϕ \phi |
ϵ \epsilon |
ζ \zeta |
η \eta |
θ \theta |
ι \iota |
κ \kappa |
λ \lambda |
μ \mu |
ν \nu |
ξ \xi |
ρ \rho |
σ \sigma |
τ \tau |
υ \upsilon |
φ \varphi |
χ \chi |
ω \omega |
π \pi |
ψ \psi |
Ξ \Xi |
Γ \Gamma |
Δ \Delta |
Λ \Lambda |
Ω \Omega |
Φ \Phi |
Ψ \Psi |
Π \Pi |
Σ \Sigma |
Θ \Theta |
Υ \Upsilon |
字母类符号
ℵ \aleph |
ℶ \beth |
ℸ \daleth |
ℷ \gimel |
∂ \partial |
Ⅎ \Finv |
ℜ \Re |
ℓ \ell |
ð \eth |
ℑ \Im |
ℏ \hslash |
∁ \complement |
℘ \wp |
∀ \forall |
|
运算符
∫ \int |
∬ \iint |
∭ \iiint |
∭
\oiiint |
∑ \sum |
∏ \prod |
∐ \coprod |
⋀ \bigwedge |
⋁ \bigvee |
⋂ \bigcap |
⋃ \bigcup |
⨀ \bigodot |
⨁ \bigoplus |
⨂ \bigotimes |
⨄ \biguplus |
\ \backslash |
/ / |
⋇ \divideontimes |
⋆ \star |
≀ \wr |
△ \vartriangle |
‡ \ddag |
⋄ \diamond |
† \dag |
∧ \wedge |
∨ \vee |
⊙ \odot |
⊗ \otimes |
⊕ \oplus |
⊖ \ominus |
⋓ \Cup |
⋒ \Cap |
∔ \dotplus |
⊺ \intercal |
∵ \because |
∴ \therefore |
∽ \backsim |
⊎ \uplus |
≃ \simeq |
|
箭头
← \leftarrow |
→ \to |
→ \rightarrow |
↑ \uparrow |
↓ \downarrow |
⟵ \longleftarrow |
⟶ \longrightarrow |
⇐ \Leftarrow |
⇒ \Rightarrow |
↦ \mapsto |
↔ \leftrightarrow |
↚ \nleftarrow |
↛ \nrightarrow |
⇀ \rightharpoonup |
↼ \leftharpoonup |
↮ \nleftrightarrow |
⇔ \Leftrightarrow |
⇎ \nLeftrightarrow |
⇍ \nLeftarrow |
⇏ \nRightarrow |
几何学
∠ \angle |
∢ \sphericalangle |
∤ \nmid |
∦ \nparallel |
■ \blacksquare |
分数
基本格式:
\frac{分子}{分母}
→
分母分子
样例:
dxdy ← \frac{dy}{dx}
∂x∂y ← \frac{\partial y}{\partial x}
上下标
基本格式:
anytext_{downtext}^{uptext}
→
anytextdowntextuptext
也可以颠倒过来:anytext^{uptext}_{downtext}
还可以只加一种:anytext_{downtext}
或 anytext^{uptext}
样例:
x2 ← x^{2}
H2O ← H_{2}O
根式
基本格式:
\sqrt[开根幂次数]{被开根数}
→
开根幂次数被开根数
样例:
2
← \sqrt{2}
32
← \sqrt[3]{2}
n3
← \sqrt[n]{3}
积分
基本格式:
\int_{积分下限}^{积分上限}
→
∫积分下限积分上限
也可以颠倒过来:\int^{积分上限}_{积分下限}
样例:
∫83x3dx ← \int{3}_{8}x3dx
大型运算符
基本格式:(以连乘运算符为例)
\prod_{downtext}^{uptext}
→
∏downtextuptext
样例:
∏k=1nf(k) ← \prod_{k=1}^{n}f(k)
括号
( ( |
) ) |
[ [ |
] ] |
{ \{ |
} \} |
∣ \vert |
∥ \Vert |
/ / |
|
函数
Pr \Pr |
sin \sin |
cos \cos |
exp \exp |
det \det |
lim \lim |
ln \ln |
log \log |
max \max |
min \min |
tan \tan |
arg \arg |
lg \lg |
|
|
强调符号
a˙ \dot a |
a¨ \ddot a |
a^ \hat a |
a~ \tilde a |
aˉ \bar a |
a
\vec a |
xyz \overline{xyz} |
xyz
\widehat{xyz} |
xyz
\widetilde{xyz} |
|
矩阵
⋯ \cdots |
… \ldots |
⋮ \vdots |
⋱ \ddots |
其他常用符号
whitespace white space |
‵ \backprime |
′ \prime |