常用的Latex符号等

Latex是数学公式的必备工具。

根据Katex 文档，将常用的整理如下：

输入	结果
\times \div \% \& \dot x	\(\times \div \% \& \dot x\)
\cdot	\(\cdot\)
a’	\(a'\)
a’’	\(a''\)
\mathring{U}	\(\mathring{U}\)
\bar{y}	\(\bar{y}\)
\vec{F}	\(\vec{F}\)
\overline{AB}	\(\overline{AB}\)
\not =	\(\not =\)
\approx	\(\approx\)
\angle	\(\angle\)
x_n	\(x_n\)
e^x	\(e^x\)
a \atop b	\(a \atop b\)
\sqrt{\smash[b]{y}}	\(\sqrt{\smash[b]{y}}\)
\sum	\(\sum\)
\int \iint	\(\int \iint\)
\pm	\(\pm\)
\sqrt[3]{x}	\(\sqrt[3]{x}\)
\frac{a}{b}	\(\frac{a}{b}\)
{a \over b}	\({a \over b}\)
\dfrac{a}{b}	\(\dfrac{a}{b}\)
\binom{n}{k}	\(\binom{n}{k}\)
\in \notin	\(\in \notin\)
\subset \subseteq	\(\subset \subseteq\)
\forall \land \lor	\(\forall \land \lor\)
\because	\(\because\)
\therefore	\(\therefore\)
\exists	\(\exists\)
\ge \geq \lt \gt	\(\ge \geq \lt \gt\)
\leqslant	\(\leqslant\)
\to \gets	\(\to \gets\)
\partial \checkmark \clubsuit \spadesuit \heartsuit \diamondsuit	\(\partial \checkmark \clubsuit \spadesuit \heartsuit \diamondsuit\)
Gamma \Delta	\(\Gamma \Delta\)
\alpha \beta \gamma \delta	\(\alpha \beta \gamma \delta\)
\Theta	\(\Theta\)
\epsilon \zeta \eta \theta	\(\epsilon \zeta \eta \theta\)
\Lambda	\(\Lambda\)
\iota \kappa \lambda \mu	\(\iota \kappa \lambda \mu\)
\Xi \Pi	\(\Xi \Pi\)
\nu \xi \omicron \pi	\(\nu \xi \omicron \pi\)
\Sigma \Upsilon	\(\Sigma \Upsilon\)
\rho \sigma \tau \upsilon	\(\rho \sigma \tau \upsilon\)
\Phi \Psi \Omega	\(\Phi \Psi \Omega\)
\phi \chi \psi \omega	\(\phi \chi \psi \omega\)
\infty	\(\infty\)
\mathcal{AaBb123} \mathsf{AaBb123} \mathtt{AaBb123}	\(\mathcal{AaBb123} \mathsf{AaBb123} \mathtt{AaBb123}\)
\overbrace{x+⋯+x}^{n\text{ times}}	\(\overbrace{x+⋯+x}^{n\text{ times}}\)
\overrightarrow{AB}	\(\overrightarrow{AB}\)
\displaystyle\sum_0^n	\(\displaystyle\sum_0^n\)
P\left(A\middle\vert B\right)	\(P\left(A\middle\vert B\right)\)

矩阵：

\begin{matrix}
   a & b \\
   c & d
\end{matrix}

\[\begin{matrix} a & b \\ c & d \end{matrix}\]

矩阵

\begin{vmatrix}
   a & b \\
   c & d
\end{vmatrix}

\[\begin{vmatrix} a & b \\ c & d \end{vmatrix}\]

算式

\cfrac{2}{1+\cfrac{2}{1+\cfrac{2}{1}}}

\[\cfrac{2}{1+\cfrac{2}{1+\cfrac{2}{1}}}\]

连续相加等式

x_1 + \dots + x_n

\[x_1 + \dots + x_n\]

连续相乘

x_1 x_2 \dotsm x_n

\[x_1 x_2 \dotsm x_n\]

求和

\sum_{1\le i\le n} x_{i}

\[\sum_{1\le i\le n} x_{i}\]