LaTex常用语法
$
--> 行内公式
$z = x + y$
--> z = x + y z = x + y z=x+y
$$
--> 多行公式
$$
x+y = z
x-z = 0
y+z = 3
$$
x + y = z x − z = 0 y + z = 3 x+y = z \\ x-z = 0 \\ y+z = 3 x+y=zx−z=0y+z=3
\
--> 转义字符
$\$$
--> $$$
\\
--> 换行
$z = x + y \\ c = a * b$
--> z = x + y c = a ∗ b z = x + y \\ c = a * b z=x+yc=a∗b
\quad
空格
$a b$
--> a b a b ab
$a \ b$
--> a b a \ b a b
$a \quad b$
--> a b a \quad b ab
$a \qquad b$
--> a b a \qquad b ab
_
--> 下标
$a_1$
--> a 1 a_1 a1
^
--> 上标
$a^1$
--> a 1 a^1 a1
{}
一组内容
$a_{11} = b^{\frac{1}{2}}$
--> a 11 = b 1 2 a_{11} = b^{\frac{1}{2}} a11=b21
\cdot
点乘
$z = x \cdot y$
--> z = x ⋅ y z = x \cdot y z=x⋅y
\times
叉乘
$z = x \times y$
--> z = x × y z = x \times y z=x×y
\div
除以
$z = x \div y$
--> z = x ÷ y z = x \div y z=x÷y
\sqrt
根号
算术平方根
$\sqrt x$
– > x \sqrt x x
其他
$\sqrt [n]x$
– > x n \sqrt [n]x nx
\vec
矢量
$ \vec{ab} \\ \overrightarrow{bc} $
--> $ \vec{ab}\ \overrightarrow{bc} $
\prod
连乘
基本连乘
$\prod_a^b$
--> ∏ a b \prod_a^b ∏ab
角标在上边和下边的连乘
$\prod \limits_{i = 1}^n$
--> ∏ i = 1 n \prod \limits_{i = 1}^n i=1∏n
\sum
连加
基本连加
$\sum _a^b$
--> ∑ a b \sum _a^b ∑ab
角标在上边和下边的连加
$\sum \limits _{i = 1}^n$
--> ∑ i = 1 n \sum \limits _{i = 1}^n i=1∑n
\int
积分
基本积分
$\int _a^b$
--> ∫ a b \int _a^b ∫ab
正负无穷积分
$\int _{-\infty}^{+\infty}$
--> ∫ − ∞ + ∞ \int _{-\infty}^{+\infty} ∫−∞+∞
\partial
偏导
$\partial x$
--> ∂ x \partial x ∂x
\propto
正比于
$a \propto b$
--> a ∝ b a \propto b a∝b
\overline
上划线
$\overline {A \cdot B + B \cdot C}$
--> A ⋅ B + B ⋅ C ‾ \overline {A \cdot B + B \cdot C} A⋅B+B⋅C
\underline
下划线
$\underline {A \cdot B + B \cdot C}$
--> A ⋅ B + B ⋅ C ‾ \underline {A \cdot B + B \cdot C} A⋅B+B⋅C
\boxed
边框
$\boxed {x*y=z}$
--> x ∗ y = z \boxed {x*y=z} x∗y=z
$\fbox {x*y=z}$
--> x*y=z \fbox {x*y=z} x*y=z
\mathbf
加粗
$\boxed{\mathbf {x*y=z}}$
--> x ∗ y = z \boxed{\mathbf {x*y=z}} x∗y=z
\boldsymbol
倾斜加粗
$\boxed{\boldsymbol {x*y=z}}$
--> x ∗ y = z \boxed{\boldsymbol{x*y=z}} x∗y=z
比较运算符
\geq
大于等于
$a \geq b$
--> a ≥ b a \geq b a≥b
\leq
小于等于
$a \leq b$
--> a ≤ b a \leq b a≤b
\neq
不等于
$a \neq b$
--> a ≠ b a \neq b a=b
子集
\subset
$A \subset B$
--> A ⊂ B A \subset B A⊂B
\not \subset
$A \not \subset B$
--> A ⊄ B A \not \subset B A⊂B
\subseteq
$A \subseteq B$
--> A ⊆ B A \subseteq B A⊆B
\subsetneq
$A \subsetneq B$
--> A ⊊ B A \subsetneq B A⊊B
\subseteqq
$A \subseteqq B$
--> A ⫅ B A \subseteqq B A⫅B
\subsetneqq
$A \subsetneqq B$
--> A ⫋ B A \subsetneqq B A⫋B
\supset
$A \supset B$
--> A ⊃ B A \supset B A⊃B
具体用法参照\subset