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