二项式系数
| 类型 | 符号 | LaTeX |
|---|---|---|
| 二项式系数 | ( n k ) \binom{n}{k} (kn) | \binom{n}{k} |
| 小型二项式系数 | ( n k ) \tbinom{n}{k} (kn) | \tbinom{n}{k} |
| 大型二项式系数 | ( n k ) \dbinom{n}{k} (kn) | \dbinom{n}{k} |
矩阵
x y z v \begin{matrix}x & y \\z & v\end{matrix} xzyv
\begin{matrix}
x & y \\
z & v
\end{matrix}
∣ x y z v ∣ \begin{vmatrix}x & y \\z & v\end{vmatrix} xzyv
\begin{vmatrix}
x & y \\
z & v
\end{vmatrix}
∥ x y z v ∥ \begin{Vmatrix}x & y \\z & v\end{Vmatrix} xzyv
\begin{Vmatrix}
x & y \\
z & v
\end{Vmatrix}
[ 0 ⋯ 0 ⋮ ⋱ ⋮ 0 ⋯ 0 ] \begin{bmatrix}0 & \cdots & 0 \\\vdots & \ddots & \vdots \\0 & \cdots & 0\end{bmatrix} 0⋮0⋯⋱⋯0⋮0
\begin{bmatrix}
0 & \cdots & 0 \\
\vdots & \ddots & \vdots
\\0 & \cdots & 0
\end{bmatrix}
{ x y z v } \begin{Bmatrix}x & y \\z & v\end{Bmatrix} {xzyv}
\begin{Bmatrix}
x & y \\
z & v
\end{Bmatrix}
( x y z v ) \begin{pmatrix}x & y \\z & v\end{pmatrix} (xzyv)
\begin{pmatrix}
x & y \\
z & v
\end{pmatrix}
( a b c d ) \bigl(\begin{smallmatrix}a&b\\c&d\end{smallmatrix}\bigr) (acbd)
\bigl(\begin{smallmatrix}
a&b\\
c&d
\end{smallmatrix}
\bigr)
数组
a b S 0 0 1 0 1 1 1 0 1 1 1 0 \begin{array}{| c | c | c | }a & b & S \\\hline0 & 0 & 1 \\0 & 1 & 1 \\1 & 0 & 1 \\1 & 1 & 0\end{array} a0011b0101S1110
\begin{array}{ | c | c | c | }
a & b & S \\
\hline
0 & 0 & 1 \\
0 & 1 & 1 \\
1 & 0 & 1 \\
1 & 1 & 0
\end{array}
方程与方程组
{ 3 x + 5 y + z 7 x − 2 y + 4 z − 6 x + 3 y + 2 z \begin{cases} 3x + 5y + z \\ 7x - 2y + 4z \\ -6x + 3y + 2z \end{cases} ⎩ ⎨ ⎧3x+5y+z7x−2y+4z−6x+3y+2z文章来源：https://www.toymoban.com/news/detail-739756.html
\begin{cases}
3x + 5y + z \\
7x - 2y + 4z \\
-6x + 3y + 2z
\end{cases}
条件定义
f ( n ) = { n / 2 , if n is even 3 n + 1 , if n is odd f(n) = \begin{cases} n/2, & \text{if }n\text{ is even} \\ 3n+1, & \text{if }n\text{ is odd} \end{cases} f(n)={n/2,3n+1,if n is evenif n is odd文章来源地址https://www.toymoban.com/news/detail-739756.html
f(n) =
\begin{cases}
n/2, & \text{if }n\text{ is even} \\
3n+1, & \text{if }n\text{ is odd}
\end{cases}
括号
| 符号 | LaTeX |
|---|---|
| ( a b ) \left ( \frac{a}{b} \right ) (ba) | \left ( \frac{a}{b} \right ) |
| [ a b ] \left [ \frac{a}{b} \right ] [ba] | \left [ \frac{a}{b} \right ] |
| [ a b ] \left \lbrack \frac{a}{b} \right \rbrack [ba] | \left \lbrack \frac{a}{b} \right \rbrack |
| { a b } \left \{ \frac{a}{b} \right \} {ba} | \left { \frac{a}{b} \right } |
| { a b } \left \lbrace \frac{a}{b} \right \rbrace {ba} | \left \lbrace \frac{a}{b} \right \rbrace |
| ⟨ a b ⟩ \left \langle \frac{a}{b} \right \rangle ⟨ba⟩ | \left \langle \frac{a}{b} \right \rangle |
| ∣ a b ∣ \left \vert \frac{a}{b} \right \vert ba | \left \vert \frac{a}{b} \right \vert |
| ∥ c d ∥ \left \Vert \frac{c}{d} \right \Vert dc | \left \Vert \frac{c}{d} \right \Vert |
| ⌊ a b ⌋ \left \lfloor \frac{a}{b} \right \rfloor ⌊ba⌋ | \left \lfloor \frac{a}{b} \right \rfloor |
| ⌈ c d ⌉ \left \lceil \frac{c}{d} \right \rceil ⌈dc⌉ | \left \lceil \frac{c}{d} \right \rceil |
| / a b \ \left / \frac{a}{b} \right \backslash /ba\ | \left / \frac{a}{b} \right \backslash |
| ↑ a b ↓ \left \uparrow \frac{a}{b} \right \downarrow ⏐ ↑ba↓ ⏐ | \left \uparrow \frac{a}{b} \right \downarrow |
| ⇑ a b ⇓ \left \Uparrow \frac{a}{b} \right \Downarrow ‖ ⇑ba⇓ ‖ | \left \Uparrow \frac{a}{b} \right \Downarrow |
| ↕ a b ⇕ \left \updownarrow \frac{a}{b} \right \Updownarrow ↓ ↑ba⇓ ⇑ | \left \updownarrow \frac{a}{b} \right \Updownarrow |
| [ 0 , 1 ) \left [ 0,1 \right ) [0,1) | \left [ 0,1 \right ) |
| ⟨ ψ ∣ \left \langle \psi \right \vert ⟨ψ∣ | \left \langle \psi \right \vert |
| A B } → X \left. \frac{A}{B} \right \} \to X BA}→X | \left. \frac{A}{B} \right } \to X |
括号尺寸
| 符号 | LaTeX |
|---|---|
| ( ( ( ( ( … ] ] ] ] ] ( \bigl( \Bigl( \biggl( \Biggl( \dots \Biggr] \biggr] \Bigr] \bigr] ] (((((…]]]]] | ( \bigl( \Bigl( \biggl( \Biggl( \dots \Biggr] \biggr] \Bigr] \bigr] ] |
| { { { { { … ⟩ ⟩ ⟩ ⟩ ⟩ \{ \bigl \{ \Bigl \{ \biggl \{ \Biggl \{ \dots \Biggr\rangle \biggr\rangle \Bigr\rangle \bigr\rangle \rangle {{{{{…⟩⟩⟩⟩⟩ | { \bigl { \Bigl { \biggl { \Biggl { \dots \Biggr\rangle \biggr\rangle \Bigr\rangle \bigr\rangle \rangle |
| ∣ ∣ ∣ ∣ ∣ … ∣ ∣ ∣ ∣ \vert \big \vert \Big \vert \bigg \vert \Bigg \vert \dots \Bigg \vert \bigg \vert \Big \vert \big \vert ∣ … | \vert \big \vert \Big \vert \bigg \vert \Bigg \vert \dots \Bigg \vert \bigg \vert \Big \vert \big \vert |
| ⌊ ⌊ ⌊ ⌊ ⌊ … ⌉ ⌉ ⌉ ⌉ ⌉ \lfloor \bigl\lfloor \Bigl\lfloor \biggl\lfloor \Biggl\lfloor \dots \Biggr\rceil \biggr\rceil \Bigr\rceil \bigr\rceil \rceil ⌊⌊⌊⌊⌊…⌉⌉⌉⌉⌉ | \lfloor \bigl\lfloor \Bigl\lfloor \biggl\lfloor \Biggl\lfloor \dots \Biggr\rceil \biggr\rceil \Bigr\rceil \bigr\rceil \rceil |
| ↑ ↑ ↑ ↑ ↑ … ⇓ ⇓ ⇓ ⇓ ⇓ \uparrow \big\uparrow \Big\uparrow \bigg\uparrow \Bigg\uparrow \dots \Bigg\Downarrow \bigg\Downarrow \Big\Downarrow \big\Downarrow \Downarrow ↑⏐ ↑⏐ ↑⏐ ↑⏐ ↑…⇓ ‖⇓ ‖⇓ ‖⇓ ‖⇓ | \uparrow \big\uparrow \Big\uparrow \bigg\uparrow \Bigg\uparrow \dots \Bigg\Downarrow \bigg\Downarrow \Big\Downarrow \big\Downarrow \Downarrow |
| ↕ ↕ ↕ ↕ ↕ … ⇕ ⇕ ⇕ ⇕ ⇕ \updownarrow \big\updownarrow \Big\updownarrow \bigg\updownarrow \Bigg\updownarrow \dots \Bigg\Updownarrow \bigg\Updownarrow \Big\Updownarrow \big\Updownarrow \Updownarrow ↕↓ ↑↓ ↑↓ ↑↓ ↑…⇓ ⇑⇓ ⇑⇓ ⇑⇓ ⇑⇕ | \updownarrow \big\updownarrow \Big\updownarrow \bigg\updownarrow \Bigg\updownarrow \dots \Bigg\Updownarrow \bigg\Updownarrow \Big\Updownarrow \big\Updownarrow \Updownarrow |
| / / / / / … \ \ \ \ \ / \big/ \Big/ \bigg/ \Bigg/ \dots \Bigg\backslash \bigg\backslash \Big\backslash \big\backslash \backslash /////…\\\\\ | / \big/ \Big/ \bigg/ \Bigg/ \dots \Bigg\backslash \bigg\backslash \Big\backslash \big\backslash \backslash |
字体
字体加粗
| 符号 | LaTeX |
|---|---|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z \boldsymbol{ABCDEFGHIJKLMNOPQRSTUVWXYZ} ABCDEFGHIJKLMNOPQRSTUVWXYZ | \boldsymbol{ABCDEFGHIJKLMNOPQRSTUVWXYZ} |
| a b c d e f g h i j k l m n o p q r s t u v w x y z \boldsymbol{abcdefghijklmnopqrstuvwxyz} abcdefghijklmnopqrstuvwxyz | \boldsymbol{abcdefghijklmnopqrstuvwxyz} |
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