markdown中Latex或Katex公式
上下标
| 名称 |
效果 |
tex |
| 上标 |
\(10^5\) |
10^{5} |
| 下标 |
\(d_{2}\) |
d_{2} |
| 上下标 |
\(d_{2}^{2}\) |
d_{2}^{2} |
Tip
上下标两例中{}表示作用范围,对于单个字符可以不加,对于多个字符则是必须的。
特例
- 有一些markdown渲染器,如pandoc,无法渲染
\degree,可以使用\circ作为上标表示角度的单位。
- 一撇:如\(K'\),可以像这样写:
$K'$
希腊字母
- 对于大写希腊字母,在前面加var(如\varxxx)一般表示斜体,部分大写希腊字母没有\varxxx的形式
| 希腊字母小写 |
tex公式语法 |
大写 |
tex |
| \(\alpha\) |
\alpha |
\(\Alpha\) |
\Alpha |
| \(\beta\) |
\beta |
\(\Beta\) |
\Beta |
| \(\gamma\) |
\gamma |
\(\Gamma\) |
\Gamma |
| \(\delta\) |
\delta |
\(\Delta\) |
\Delta |
| \(\epsilon\) |
\epsilon |
\(\Epsilon\) |
\Epsilon |
| \(\varepsilon\) |
\varepsilon |
|
|
|
|
\(\digamma\) |
\digamma |
| \(\zeta\) |
\zeta |
\(\Zeta\) |
\Zeta |
| \(\eta\) |
\eta |
\(\Eta\) |
\Eta |
| \(\theta\) |
\theta |
\(\Theta\) |
\Theta |
| \(\iota\) |
\iota |
\(\Iota\) |
\Iota |
| \(\kappa\) |
\kappa |
\(\Kappa\) |
\Kappa |
| \(\lambda\) |
\lambda |
\(\Lambda\) |
\Lambda |
| \(\mu\) |
\mu |
\(\Mu\) |
\Mu |
| \(\nu\) |
\nu |
\(\Nu\) |
\Nu |
| \(\xi\) |
\xi |
\(\Xi\) |
\Xi |
| \(o\) |
o |
\(O\) |
O |
| \(\pi\) |
\pi |
\(\Pi\) |
\Pi |
| \(\varpi\) |
\varpi |
|
|
| \(\rho\) |
\rho |
\(\Rho\) |
\Rho |
| \(\sigma\) |
\sigma |
\(\Sigma\) |
\Sigma |
| \(\varsigma\) |
\varsigma |
|
|
| \(\tau\) |
\tau |
\(\Tau\) |
\Tau |
| \(\upsilon\) |
\upsilon |
\(\Upsilon\) |
\Upsilon |
| \(\varphi\) |
\varphi |
\(\Phi\) |
\Phi |
| \(\phi\) |
\phi |
|
|
| \(\chi\) |
\chi |
\(\Chi\) |
\Chi |
| \(\psi\) |
\psi |
\(\Psi\) |
\Psi |
| \(\omega\) |
\omega |
\(\Omega\) |
\Omega |
字母向量、箭头、上下划线、上尖、上波浪线、一阶导数、二阶导数
| 名称 |
效果 |
tex |
| 向量(上箭头) |
\(\vec{a}\) |
\vec{a} |
| 左箭头 |
\(\overleftarrow{abc}\) |
\overleftarrow{abc} |
| 右箭头 |
\(\overrightarrow{abc}\) |
\overrightarrow{abc} |
| 平均值(上划线) |
\(\overline{abc}\) |
\overline{abc} |
| 下划线 |
\(\underline{abc}\) |
\underline{abc} |
| (线性回归,直线方程) 尖 |
\(\widehat{abc}\) |
\widehat{abc} |
| 颚化符号 等价无穷小 |
\(\widetilde{abc}\) |
\widetilde{abc} |
| 一阶导数(上点) |
\(\dot{a}\) |
\dot{a} |
| 二阶导数(上两点) |
\(\ddot{a}\) |
\ddot{a} |
| 上花括号 |
\(\overbrace{abc}\) |
\overbrace{abc} |
| 下花括号 |
\(\underbrace{abc}\) |
\underbrace{abc} |
数学结构
| 名称 |
效果 |
tex |
| 分式 |
\(\frac{a}{b}\) |
\(\frac{a}{b}\) |
| 根式 |
\(\sqrt{abc}\) |
\sqrt{abc} |
| n次根 |
\(\sqrt[n]{abc}\) |
\sqrt[n]{abc} |
数学运算符号
| 名称 |
效果 |
tex |
| 加 |
\(+\) |
+ |
| 减 |
\(-\) |
- |
| 乘 |
\(\times\) |
\times |
| 除 |
\(\div\) |
\div |
| 点乘 |
\(\cdot\) |
\cdot |
| 星乘 |
\(\ast\) |
\ast |
| 等于 |
\(=\) |
= |
| 不等于 |
\(\ne\) |
\neq或\ne |
| 加减 |
\(\pm\) |
\pm |
| 减加 |
\(\mp\) |
\mp |
| 求和 |
\(\sum\) |
\sum |
| 连乘 |
\(\prod\) |
\prod |
| 余积 |
\(\coprod\) |
\coprod |
| (一重)积分 |
\(\int\) |
\int |
| 一重闭曲线积分 |
\(\oint\) |
\oint |
| 二重积分 |
\(\iint\) |
\iint |
| 三重积分 |
\(\iiint\) |
\iiint |
| 闭曲面积分 |
\(\oiint\) |
\oiint |
| 体积积分 |
\(\oiiint\) |
\oiiint |
|
\(\biguplus\) |
\biguplus |
| 并集 |
\(\bigcup\) |
\bigcup |
| 交集 |
\(\bigcap\) |
\bigcap |
|
\(\bigodot\) |
\bigodot |
|
\(\bigvee\) |
\bigvee |
|
\(\bigwedge\) |
\bigwedge |
|
\(\bigsqcup\) |
\bigsqcup |
界定符
| 名称 |
效果 |
tex |
| 竖线 |
\(\|\) |
| |
|
\(\vert\) |
\vert |
| 双竖线 |
\(\\\|\) |
\| |
|
\(\Vert\) |
\Vert |
| 花括号 |
\(\{\) |
\{ |
|
\(\}\) |
\} |
| 尖括号 |
\(\lang\) |
\lang |
|
\(\rang\) |
\rang |
|
\(\lfloor\) |
\lfloor |
|
\(\rfloor\) |
\rfloor |
|
\(\lceil\) |
\lceil |
|
\(\rceil\) |
\rceil |
| 斜线 |
\(/\) |
/ |
| 反斜线 |
\(\backslash\) |
\backslash |
| 中括号 |
\([\) |
[ |
|
\(]\) |
] |
| 向上箭头 |
\(\uparrow\) |
\uparrow |
|
\(\Uparrow\) |
\Uparrow |
| 向下箭头 |
\(\downarrow\) |
\downarrow |
|
\(\Downarrow\) |
\Downarrow |
|
\(\llcorner\) |
\llcorner |
|
\(\lrcorner\) |
\lrcorner |
|
\(\ulcorner\) |
\ulcorner |
|
\(\urcorner\) |
\urcorner |
函数名称
| 名称 |
效果 |
tex |
| arccos |
\(\arccos\) |
\arccos |
| arcsin |
\(\arcsin\) |
\arcsin |
| arctan |
\(\arctan\) |
\arctan |
| arg |
\(\arg\) |
\arg |
| cos |
\(\cos\) |
\cos |
| cosh |
\(\cosh\) |
\cosh |
| cot |
\(\cot\) |
\cot |
| coth |
\(\coth\) |
\coth |
| csc |
\(\csc\) |
\csc |
| deg |
\(\deg\) |
\deg |
| det |
\(\det\) |
\det |
| dim |
\(\dim\) |
\dim |
| exp |
\(\exp\) |
\exp |
| gcd |
\(\gcd\) |
\gcd |
| hom |
\(\hom\) |
\hom |
| inf |
\(\inf\) |
\inf |
| ker |
\(\ker\) |
\ker |
| lg |
\(\lg\) |
\lg |
| lim |
\(\lim\) |
\lim |
| liminf |
\(\liminf\) |
\liminf |
| limsup |
\(\limsup\) |
\limsup |
| ln |
\(\ln\) |
\ln |
| log |
\(\log\) |
\log |
| max |
\(\max\) |
\max |
| min |
\(\min\) |
\min |
| Pr |
\(\Pr\) |
\Pr |
| sec |
\(\sec\) |
\sec |
| sin |
\(\sin\) |
\sin |
| sinh |
\(\sinh\) |
\sinh |
| sup |
\(\sup\) |
\sup |
| tan |
\(\tan\) |
\tan |
| tanh |
\(\tanh\) |
\tanh |