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LATEX 常用字符和表达式。
1. 数学符号
1.1. 关系符号
符号 |
语法 |
符号 |
语法 |
符号 |
语法 |
∼ |
\sim |
≃ |
\simeq |
≅ |
\cong |
= |
= |
̸= |
\neq or \ne |
=˙ |
\dot= |
≡ |
\equiv |
̸≡ |
\not\equiv |
≈ |
\approx |
≫ |
\gg |
⋙ |
\ggg |
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|
≪ |
\ll |
⋘ |
\lll |
|
|
≥ |
\ge |
≧ |
\geqq |
∝ |
\propto |
≤ |
\leq |
≦ |
\leqq |
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|
1.2. 运算符号
符号 |
语法 |
符号 |
语法 |
符号 |
语法 |
± |
\pm |
∓ |
\mp |
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|
∖ |
\setminus |
÷ |
\div |
ba |
\frac{a}{b} |
× |
\times |
⋅ |
\cdot |
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|
1.3. 大型运算符
符号 |
语法 |
符号 |
语法 |
i=1∑Nk2 |
\sum_{k=1}^{N} k^2 |
i=1∏Nai |
\prod_{i=1}^{N} a_i |
n→∞limxn |
\lim_{n \to \infty} x_n |
i=1∐Nai |
\coprod_{i=1}^{N} a_i |
∫abf(x)dx |
\int_{a}^{b} f(x)\, dx |
∬abf(x)dxdy |
\iint_{a}^{b} f(x)\, dx\, dy |
∭abf(x)dxdydz |
\iiint_{a}^{b} f(x)\, dx\, dy\, dz |
∮Cx2dx+4y2dy |
\oint_{C} x^2\, dx + 4y^2\, dy |
2. 函数
2.1. 常用函数
符号 |
语法 |
符号 |
语法 |
符号 |
语法 |
符号 |
语法 |
log |
\log |
lg |
\lg |
ln |
ln |
logab |
\log_{a}{b} |
a→blim |
\lim_{a \to b} |
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2.2. 三角函数
符号 |
语法 |
符号 |
语法 |
符号 |
语法 |
符号 |
语法 |
sin |
\sin |
cos |
\cos |
tan |
\tan |
cot |
\cot |
arcsin |
\arcsin |
arccos |
\arccos |
arctan |
\arctan |
\arccot |
\arccot |
sinh |
\sinh |
cosh |
\cosh |
tanh |
\tanh |
coth |
\coth |
sec |
\sec |
csc |
\csc |
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3. 字体
3.1. 希腊字母
符号 |
语法 |
A and
α |
\Alpha and \alpha |
B and
β |
\Beta and \beta |
Γ and
γ |
\Gamma and \gamma |
Δ and
δ |
\Delta and \delta |
E,
ϵ and
ε |
\Epsilon, \epsilon and \varepsilon |
Z and
ζ |
\Zeta and \zeta |
H and
η |
\Eta and \eta |
Θ,
θ and
ϑ |
\Theta, \theta and \vartheta |
I and
ι |
\Iota and \iota |
K and
κ |
\Kappa and \kappa |
Λ and
λ |
\Lambda and \lambda |
M and
μ |
\Mu and \mu |
N and
ν |
\Nu and \nu |
Ξ and
ξ |
\Xi and \xi |
Π,
π and
ϖ |
\Pi, \pi and \varpi |
R,
ρ and
ϱ |
\Rho, \rho and \varrho |
Σ,
σ and
ς |
\Sigma, \sigma and \varsigma |
T and
τ |
\Tau and \tau |
Υ and
υ |
\Upsilon and \upsilon |
Φ,
ϕ and
φ |
\Phi, \phi and \varphi |
X and
χ |
\Chi and \chi |
Ψ and
ψ |
\Psi and \psi |
Ω and
ω |
\Omega and \omega |