常用符号命令¶
希腊字母¶
名称 | 指令 | 输出 | 名称 | 指令 | 输出 |
---|---|---|---|---|---|
Alpha | \alpha | \(\alpha\) | Mu | \mu | \(\mu\) |
Beta | \beta | \(\beta\) | Nu | \nu | \(\nu\) |
Gamma | \gamma \Gamma | \(\gamma\) \(\Gamma\) | Xi | \xi \Xi | \(\xi\) \(\Xi\) |
Delta | \delta \Delta | \(\delta\) \(\Delta\) | Omicron | o | \(o\) |
Epsilon | \epsilon \varepsilon | \(\epsilon\) \(\varepsilon\) | Pi | \pi \Pi | \(\pi\) \(\Pi\) |
Zeta | \zeta | \(\zeta\) | Rho | \rho | \(\rho\) |
Eta | \eta | \(\eta\) | Sigma | \sigma \Sigma | \(\sigma\) \(\Sigma\) |
Theta | \theta \Theta | \(\theta\) \(\Theta\) | Tau | \tau | \(\tau\) |
Iota | \iota | \(\iota\) | Sigma | \sigma \Sigma | \(\sigma\) \(\Sigma\) |
Kappa | \kappa | \(\kappa\) | Tau | \tau | \(\tau\) |
Lambda | \lambda \Lambda | \(\lambda\) \(\Lambda\) | Phi | \phi \Phi | \(\phi\) \(\Phi\) |
Omega | \omega \Omega | \(\omega\) \(\Omega\) | Upsilon | \upsilon \Upsilon | \(\upsilon\) \(\Upsilon\) |
Psi | \psi \Psi | \(\psi\) \(\Psi\) | Chi | \chi | \(\chi\) |
集合论¶
名称 | 指令 | 输出 |
---|---|---|
空集 | \emptyset \varnothing | \(\emptyset\) \(\varnothing\) |
并集 | \cup | \(\cup\) |
交集 | \cap | \(\cap\) |
子集 | \subset | \(\subset\) |
包含 | \supset | \(\supset\) |
真子集 | \subsetneq | \(\subsetneq\) |
真包含 | \supsetneq | \(\supsetneq\) |
自然数集 | \mathbb{N} | \(\mathbb{N}\) |
整数集 | \mathbb{Z} | \(\mathbb{Z}\) |
有理数集 | \mathbb{Q} | \(\mathbb{Q}\) |
实数集 | \mathbb{R} | \(\mathbb{R}\) |
复数集 | \mathbb{C} | \(\mathbb{C}\) |
逻辑关系¶
名称 | 指令 | 输出 |
---|---|---|
与 | \land | \(\land\) |
或 | \lor | \(\lor\) |
非 | \lnot | \(\lnot\) |
充分 | \implies | \(\implies\) |
必要 | \impliedby | \(\impliedby\) |
充要 | \iff \Leftrightarrow | \(\iff\) \(\Leftrightarrow\) |
大小关系¶
名称 | 指令 | 输出 |
---|---|---|
等于 | = | \(=\) |
不等于 | \neq | \(\neq\) |
大于 | > | \(>\) |
小于 | < | \(<\) |
大于等于 | \geq | \(\geq\) |
小于等于 | \leq | \(\leq\) |
约等于 | \approx | \(\approx\) |
恒等于 | \equiv | \(\equiv\) |
几何关系 & 几何形状¶
名称 | 指令 | 输出 | 名称 | 指令 | 输出 |
---|---|---|---|---|---|
平行 | \parallel \mathrel{/\mskip-2.5mu/} | \(\parallel\) \(\mathrel{/\mskip-2.5mu/}\) | 垂直 | \perp | \(\perp\) |
相似 | \sim | \(\sim\) | 全等1 | \cong | \(\cong\) |
角 | \angle | \(\angle\) | 弧 | yhmath 包中 \(\wideparen{AB}\) |
参考资料¶
-
国标要求的符号的弯曲方向是相反的。
amssymb
提供了\backsim
,unicode-math
提供了\backsim
和\backcong
,但是曲线部分仍略小于国标的样式。引自 LaTeX 排版国标样式的数学符号。 ↩