\mid ∣
\sim ∼
\cfrac{a}{b} ab
\frac{a}{b} ab
\times ×
\pm ±
\mp ∓
\cup ∪
\cap ∩
\bigcup ⋃
\bigcap ⋂
\varnothing ∅
A^{ac} :上標 Aac
A_{ac} :下標 Aac
\cdots ⋯
\cdot ⋅
\vdots ⋮
\ddots ⋱
\vert |
\hat{x} ˆx
\binom {a}{b} (ab)
\dbinom{a}{b} (ab)
\vec {}
→x
印出%
\% %
\text{C.L.T} C.L.T 文字區塊
字體大小
\tiny
\scriptsize
\footnotesize
\small
預設大小 \normalsize
\large
\Large
\LARGE
\huge
\Huge
\mathbf{X} X
希臘字母
\alpha α
\beta β
\mu μ
\sigma σ
\lambda λ
\delta δ
\rho ρ
\chi χ
\pi π
\epsilon ϵ
\varepsilon ε
\geq ≥
\leq ≤
\gt >
\lt <
\equiv ≡
\neq ≠
\approx ≈
\mathbb{R} R
\in ∈
\perp ⊥
\overline{AB} ¯AB
\int_{x}^{y} ∫yx
\iint_{x}^{y} ∬yx
\,dx dx
\partial ∂
\binom{a}{b} (ab)
\sum_{i}^{n} ∑ni
\forall ∀
\exists ∃
\ln{x} lnx
\infty ∞
\cdot ⋅
\frak L L (字型)
\implies ⟹
\to →
\sqrt {a+b} √a+b
\sqrt[n] {a+b} n√a+b
\Re ℜ (實數)$
\pmatrix{A\\B} (AB)
A^\mathsf{T} AT (矩陣用 transpose)
\forall ∀
\left( \right) () (自動適應大小括號)
\xrightarrow{abcdefg} abcdefg→ (箭頭上寫字)
\xleftarrow{abcdefg} abcdefg← (箭頭上寫字)
\stackrel{ abc}{=} abc= (符號堆疊)
\displaystyle\int_a^b ∫ba (積分大小自動適應)
\displaystyle\sum_{x=0}^{\infty} ∞∑x=0 (上下標跑去下面)
\left[\cfrac{a}{b}\right] [ab] (自動調整中括號)
a\quad b ab (空格)
& 對齊點
\\ 換行
\left|\cfrac{a}{b}\right| |ab| (自動調整絕對值)
\displaystyle\lim_{x\to\infty} lim
\displaystyle 自動調整大小，字不會忽小忽大。(e^ 使用)
\left\{
\begin{array}{c}
a_1x+b_1y+c_1z=d_1 \\ a_2x+b_2y+c_2z=d_2 \\ a_3x+b_3y+c_3z=d_3
\end{array}
\right. (空白自行去除)
\begin{array}{行的對齊方式}...
\end{array} 且 必須在數學模式下才能使用。 其中行的對齊方式分別是 c(置中)、l(靠左)、r(靠右)， 一個陣列如果有四行都置中則輸入 cccc 四個對齊方式， 不能輸入少於最大行數個對齊方式，否則排版會出問題。
(要用段落才不會出問題)
\left\{\begin{array}{c} a_1x+b_1y+c_1z=d_1 \\ a_2x+b_2y+c_2z=d_2 \\ a_3x+b_3y+c_3z=d_3 \end{array} \right.
\b egin{align}a&=\mu_y-\rho\cfrac{\sigma_y}{\sigma_x}\mu_x\\b&=\rho\cfrac{\sigma_y}{\sigma_x}\end{align}(方程式對齊)
\begin{align}a&=\mu_y-\rho\cfrac{\sigma_y}{\sigma_x}\mu_x\\b&=\rho\cfrac{\sigma_y}{\sigma_x}\end{align}
\b egin{vmatrix} \cfrac{\partial x_1}{\partial y_1} & \cfrac{\partial x_1}{\partial y_2} \\ \cfrac{\partial x_2}{\partial y_1} & \cfrac{\partial x_2}{\partial y_2} \end{vmatrix}
\begin{vmatrix} \cfrac{\partial x_1}{\partial y_1} & \cfrac{\partial x_1}{\partial y_2} \\ \cfrac{\partial x_2}{\partial y_1} & \cfrac{\partial x_2}{\partial y_2} \end{vmatrix}
f_X(x)=\left\{\begin{array}{l}
\pmatrix{n\\x}p^x(1-p)^{n-x}\ \ &，x=0,1,2,\cdots,n \\0\ \ &，o.w \end{array}\right.
f_X(x)=\left\{\begin{array}{l}\pmatrix{n\\x}p^x(1-p)^{n-x}\ \ &，x=0,1,2,\cdots,n \\0\ \ &，o.w \end{array}\right.$
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