LaTeX Math Symbols Cheat Sheet - Kapeli
Mathematical Symbols
Symbols |
LaTex |
x2 |
x^2 |
y1 |
y_1 |
∞ |
\infty |
−∞ |
-\infty |
a |
\vec a |
aˉ |
\bar a |
aˊ |
\acute a |
aˇ |
\check a |
aˋ |
\grave a |
⋅ ,⋯,… |
\cdot,\cdots,\dots |
AB |
\overrightarrow{AB} |
Binary Operators
Symbols |
LaTex |
a+b−c∗d |
a+b-c*d |
a÷b |
a\div b |
a±b |
a\pm b |
ba |
\frac a b |
b |
\sqrt b |
≤ |
\le |
≥ |
\ge |
= |
\ne |
≈ |
\approx |
∈ |
\in |
∈/ |
\notin |
∋ |
\owns |
± |
\pm |
Big Operators
Symbols |
LaTex |
∑i=1nai |
\sum_{i=1}^{n}{a_i} |
∏i=1nai |
\prod_{i=1}^n{a_i} |
lima→∞a+b |
\lim_{a\rightarrow\infty}{a+b} |
Greek Letters
数学表达式 |
LaTex |
α |
\alpha |
β |
\beta |
γ |
\gamma |
δ |
\delta |
Δ |
\Delta |
ϵ |
\epsilon |
ε |
\varepsilon |
η |
\eta |
θ |
\theta |
Θ |
\Theta |
κ |
\kappa |
ι |
\iota |
ζ |
\zeta |
λ |
\lambda |
Λ |
\Lambda |
μ |
\mu |
ϕ |
\phi |
Φ |
\Phi |
φ |
\varphi |
π |
\pi |
Π |
\Pi |
ρ |
\rho |
ξ |
\xi |
Ξ |
\Xi |
ν |
\nu |
υ |
\upsilon |
χ |
\chi |
ψ |
\psi |
Ψ |
\Psi |
ω |
\omega |
σ |
\sigma |
Σ |
\Sigma |
Ω |
\Omega |
Γ |
\Gamma |
ϖ |
\varpi |
τ |
\tau |
Trigonometry
Symbols |
LaTex |
sinα |
\sin\alpha |
cosβ |
\cos\beta |
tanγ |
\tan\gamma |
cotθ |
$\cot\theta |
Matrix/Determinant
- 大括号
{Bmatrix}
,中括号{bmatrix}
,行列式{vmatrix}
,小括号\left(
、\right)
- 行省略号
\cdots
,列省略号\vdots
,斜向省略号(左上至右下)\ddots
⎣⎢⎡147258369⎦⎥⎤(1)
1 2 3 4 5 6 7
| $$ \begin{bmatrix} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \end{bmatrix}\tag{1} $$
|
⎝⎛147258369⎠⎞(2)
1 2 3 4 5 6 7 8 9
| $$ \left( \begin{matrix} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \end{matrix} \right) \tag{2} $$
|
⎩⎪⎪⎪⎪⎨⎪⎪⎪⎪⎧16⋮α27⋮α+1⋯⋯⋱⋯510⋮α+4⎭⎪⎪⎪⎪⎬⎪⎪⎪⎪⎫(3)
1 2 3 4 5 6 7 8 9 10
| $$ \left\{ \begin{matrix} 1 & 2 & \cdots & 5 \\ 6 & 7 & \cdots & 10 \\ \vdots & \vdots & \ddots & \vdots \\ \alpha & \alpha+1 & \cdots & \alpha+4 \end{matrix} \right\} \tag{3} $$
|
Tabel
276951438
1 2 3 4 5 6 7 8
| $$ \begin{array}{|c|c|c|} \hline 2&9&4\\ \hline 7&5&3\\ \hline 6&1&8\\ \hline \end{array} $$
|
开头结尾:以\begin{array}
, \end{array}
开头结尾,每行元素间均须要插入 &
,每行元素以 \\
结尾。
定义式:例:{|c|c|c|}
,其中c
l
r
分别代表居中、左对齐及右对齐。
竖直分割线:在定义式中插入 |
, (||
表示两条竖直分割线)。
水平分割线:在下一行输入前插入 \hline
,以下图真值表为例。
A0011B0101F0111
1 2 3 4 5 6 7 8 9
| $$ \begin{array}{cc|c} A&B&F\\ \hline 0&0&0\\ 0&1&1\\ 1&0&1\\ 1&1&1\\ \end{array} $$
|
Alignment|多项式对齐
a=b+c=d+e+f
1 2 3 4 5 6
| $$ \begin{aligned} a &= b + c \\ &= d + e + f \end{aligned} $$
|
Equations set|方程组
⎩⎪⎪⎨⎪⎪⎧3x+5y+z7x−2y+4z−6x+3y+2z
1 2 3 4 5 6 7
| $$ \begin{cases} 3x + 5y + z \\ 7x - 2y + 4z \\ -6x + 3y + 2z \end{cases} $$
|
f(n)={n/2,3n+1,if n is evenif n is odd
1 2 3 4 5 6 7
| $$ f(n) = \begin{cases} n/2, & \text{if }n\text{ is even} \\ 3n+1, & \text{if }n\text{ is odd} \end{cases} $$
|