markdown 数学公式符号大全
史上最全Markdown公式、符号总结

$$
\begin{gathered}
\operatorname{arg\,max}_a f(a) 
 = \operatorname*{arg\,max}_b f(b) \\
 \operatorname{arg\,min}_c f(c) 
 = \operatorname*{arg\,min}_d f(d)
\end{gathered}
$$
$$
\underset{<constraints>}{\operatorname{<argmax\;or\;argmin>}}
$$
$\underset {c \in C} {\operatorname {argmax}}$

arg max ⁡ a f ( a ) = * ⁡ a r g   m a x b f ( b ) arg min ⁡ c f ( c ) = * ⁡ a r g   m i n d f ( d ) \begin{gathered} \operatorname{arg\,max}_a f(a) = \operatorname*{arg\,max}_b f(b) \\ \operatorname{arg\,min}_c f(c) = \operatorname*{arg\,min}_d f(d) \end{gathered} argmaxa​f(a)=*argmaxb​f(b)argminc​f(c)=*argmind​f(d)​
<argmax  or  argmin> ⁡ < c o n s t r a i n t s > \underset{<constraints>}{\operatorname{<argmax\;or\;argmin>}} <constraints><argmaxorargmin>​
argmax ⁡ c ∈ C \underset {c \in C} {\operatorname {argmax}} c∈Cargmax​

上下标:

代码:

$dp_{i}$
$dp_{ar_{i}}$
$a^{2^2}$
$dp_{i}\;^2$
向上取整⌈ ⌉和向下取整⌊ ⌋

效果:
d p i dp_{i} dpi​
d p a r i dp_{ar_{i}} dpari​​
a 2 2 a^{2^2} a22
d p i    2 dp_{i}\;^2 dpi​2

运算符:

代码:

乘号: $\times$
$dp_{i} = dp_{i-1} \times (1-p)$
÷: $\div$
加减号: $\pm$
开方:$\sqrt{ x }$
开n次方:\sqrt[ n ]{ x }

效果:
× \times ×
d p i = d p i − 1 × ( 1 − p ) dp_{i} = dp_{i-1} \times (1-p) dpi​=dpi−1​×(1−p)
÷ \div ÷
d p i = d p i − 1 ÷ ( 1 − p ) dp_{i} = dp_{i-1} \div (1-p) dpi​=dpi−1​÷(1−p)
± \pm ±
x \sqrt{ x } x ​
x n \sqrt[ n ]{ x } nx ​

向量:

a ⃗ \vec{ a } a :$\vec{ a }$
a ⃗ ⋅ b ⃗ = 0 \vec a \cdot \vec b = 0 a ⋅b =0 :$\vec a \cdot \vec b = 0$

微积分:

∫ 0 2 x 2 d x \int_0^2 x^2 {\rm d}x ∫02​x2dx :$\int_0^2 x^2 {\rm d}x$
lim ⁡ n → + ∞ 1 n ( n + 1 ) \lim\limits_{n \rightarrow +\infty} \frac{1}{n(n+1)} n→+∞lim​n(n+1)1​ :$\lim\limits_{n \rightarrow +\infty} \frac{1}{n(n+1)}$

求和求极限:

∑ i = 0 n 1 i 2 \sum_{i=0}^n \frac{1}{i^2} ∑i=0n​i21​ : $\sum_{i=0}^n \frac{1}{i^2}$
∏ i = 0 n 1 i 2 \prod_{i=0}^n \frac{1}{i^2} ∏i=0n​i21​ : $\prod_{i=0}^n \frac{1}{i^2}$

括号:

{ }: $\{ \}$
${a \choose b} $ : ${a \choose b} $
$ \frac{ x }{ y } $ : $ \frac{ x }{ y } $
() : $ \left ()\right.$

省略号:

… \ldots … :$\ldots$
⋯ \cdots ⋯ :$\cdots$

转义字符:

$ # $ % & _ { } $ :\# \$ \%\&\_\{\}

数学符号

∣:\mid
∗:\ast
≤:\leq
≥:\geq
≠:\neq
≈:\approx
≡:\equiv
∑:\sum
∏:\prod
∐:\coprod
⨀:\bigodot
⨂:\bigotimes
⨁:\bigoplus

集合运算符:

∅:\emptyset
∈:\in
∉:\notin
⊂:\subset
⊃:\supset
⊆:\subseteq
⊇:\supseteq
⋂:\bigcap
⋃:\bigcup
⋁:\bigvee
⋀:\bigwedge
⨄:\biguplus
⨆:\bigsqcup
∀ \forall ∀: \forall
∃ \exists ∃: \exists
R \mathbb{R} R:\mathbb{R}
Z \mathbb{Z} Z:\mathbb{Z}

对数符号:

log:\log
lg:\lg
ln:\ln

箭头符号:

↑:\uparrow
↓:\downarrow
⇑:\Uparrow
⇓:\Downarrow
→:\rightarrow
←:\leftarrow
⇒:\Rightarrow
⇐:\Leftarrow
⟶:\longrightarrow
⟵:\longleftarrow
⟹:\Longrightarrow
⟸:\Longleftarrow

三角运算符:

⊥:\bot
∠:\angle
30∘:30^\circ
sin:\sin
cos:\cos
tan:\tan
cot:\cot
sec:\sec
csc:\csc

希腊字母:

\alpha \beta \gamma \Gamma \delta \Delta \epsilon \varepsilon \zeta \eta \theta \Theta \vartheta \iota \kappa \lambda \Lambda \mu \nu \xi \Xi \pi \Pi \varpi \rho \varrho \sigma \Sigma \varsigma \tau \upsilon \Upsilon \phi \Phi \varphi \chi \psi \Psi \Omega \omega

α β γ Γ δ Δ ϵ ε ζ η θ Θ ϑ ι κ λ Λ μ ν ξ Ξ π Π ϖ ρ ϱ σ Σ ς τ υ Υ ϕ Φ φ χ ψ Ψ Ω ω \alpha \beta \gamma \Gamma \delta \Delta \epsilon \varepsilon \zeta \eta \theta \Theta \vartheta \iota \kappa \lambda \Lambda \mu \nu \xi \Xi \pi \Pi \varpi \rho \varrho \sigma \Sigma \varsigma \tau \upsilon \Upsilon \phi \Phi \varphi \chi \psi \Psi \Omega \omega αβγΓδΔϵεζηθΘϑικλΛμνξΞπΠϖρϱσΣςτυΥϕΦφχψΨΩω
在这里插入图片描述


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矩阵

$$
\begin{bmatrix}
   1 & 1 & ...&1& 1 \\
   0 & 1 & ...&1& 1 \\
   0 & 0 & ...&1& 1 \\
   0 & 0 & ...&1& 1 \\
   1 & 1 & ...&1& 2
  \end{bmatrix}
$$

[ 1 1 . . . 1 1 0 1 . . . 1 1 0 0 . . . 1 1 0 0 . . . 1 1 1 1 . . . 1 2 ] \begin{bmatrix} 1 & 1 & ...&1& 1 \\ 0 & 1 & ...&1& 1 \\ 0 & 0 & ...&1& 1 \\ 0 & 0 & ...&1& 1 \\ 1 & 1 & ...&1& 2 \end{bmatrix} ⎣⎢⎢⎢⎢⎡​10001​11001​...............​11111​11112​⎦⎥⎥⎥⎥⎤​

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