latex 常见字符

24个希腊字母

序号	大写	小写	英文注音	国际音标注音	中文读音	意义
1	Α	α	alpha	/ˈælfə/	阿尔法	角度；系数
2	Β	β	beta	/'beitə/	贝塔	磁通系数；角度；系数
3	Γ	γ	gamma	/'gæmə/	伽马	电导系数（小写）
4	Δ	δ	delta	/'deltə/	德尔塔	变动；密度；屈光度
5	Ε	\(\epsilon\)/\(\varepsilon\)	epsilon/varepsilon	/ep'silɒn/	伊普西龙	对数之基数
6	Ζ	ζ	zeta	/'zi:tə/	截塔	系数；方位角；阻抗；相对粘度；原子序数
7	Η	η	eta	/'i:tə/	艾塔	磁滞系数；效率（小写）
8	Θ	θ/\(\vartheta\)	theta/vartheta	/'θi:tə/	西塔	温度；相位角
9	Ι	ι	iota	/ai'əute/	约塔	微小，一点儿
10	Κ	κ	kappa	/'kæpə/	卡帕	介质常数
11	Λ	λ	lambda	/'læmdə/	兰布达	波长（小写）；体积
12	Μ	μ	mu	/mju:/	缪	磁导系数微（千分之一）放大因数（小写）
13	Ν	ν	nu	/nju:/	纽	磁阻系数
14	Ξ	ξ	xi	/ksi/	克西	数学上的随机变量
15	Ο	ο	omicron	/əumaik'rɒn/	奥密克戎	高阶无穷小函数
16	Π	π/\(\varpi\)	pi/varpi	/pai/	派	圆周率=圆周÷直径=3.14159 26535 89793
17	Ρ	ρ/\(\varrho\)	rho/varrho	/rou/	肉	电阻系数（小写）、密度（小写）
18	Σ	σ/\(\varsigma\)	sigma/varsigma	/'sigmə/	西格马	总和（大写），表面密度；跨导（小写）
19	Τ	τ	tau	/tau/	套	时间常数
20	Υ	υ \(\upsilon\)	upsilon	/ʌp'sailən/	艾普西龙	位移
21	Φ	\(\phi/\varphi\)	phi/varphi	/fai/	佛爱	磁通；角
22	Χ	χ	chi	/kai/	西	统计学中有卡方(χ2)分布
23	Ψ	ψ	psi	/psai/	普塞	角速；介质电通量（静电力线）；角
24	Ω	ω	omega	/'əumigə/	欧米伽	欧姆（大写）；角速（小写）；角

数学公式链接

普通字符链接

操作符

Symbol	Command	Symbol	Command	Symbol	Command
\(\pm\)	\pm	\(\mp\)	\mp	\(\times\)	\times
\(\div\)	\div	\(\cdot\)	\cdot	\(\ast\)	\ast
\(\star\)	\star	\(\dagger\)	\dagger	\(\ddagger\)	\ddagger
\(\amalg\)	\amalg	\(\cap\)	\cap	\(\cup\)	\cup
\(\uplus\)	\uplus	\(\sqcap\)	\sqcap	\(\sqcup\)	\sqcup
\(\vee\)	\vee	\(\wedge\)	\wedge	\(\oplus\)	\oplus
\(\ominus\)	\ominus	\(\otimes\)	\otimes	\(\circ\)	\circ
\(\bullet\)	\bullet	\(\diamond\)	\diamond	\(\lhd\)	\lhd
\(\rhd\)	\rhd	\(\unlhd\)	\unlhd	\(\unrhd\)	\unrhd
\(\oslash\)	\oslash	\(\odot\)	\odot	\(\bigcirc\)	\bigcirc
\(\triangleleft\)	\triangleleft	\(\Diamond\)	\Diamond	\(\bigtriangleup\)	\bigtriangleup
\(\bigtriangledown\)	\bigtriangledown	\(\Box\)	\Box	\ \(\triangleright\)	\triangleright
\(\setminus\)	\setminus	\(\wr\)	\wr	\(\sqrt{x}\)	\sqrt
\(x^{\circ}\)	x^	\(\triangledown\)	\triangledown	\(\sqrt[n]{x}\)	\sqrt[n]
\(a^x\)	a^x	\(a^{xyz}\)	a^	\(a_x\)	a_x

关系

Symbol	Command	Symbol	Command	Symbol	Command
\(\le\)	\le	\(\ge\)	\ge	\(\neq\)	\neq
\(\sim\)	\sim	\(\ll\)	\ll	\(\gg\)	\gg
\(\doteq\)	\doteq	\(\simeq\)	\simeq	\(\subset\)	\subset
\(\supset\)	\supset	\(\approx\)	\approx	\(\asymp\)	\asymp
\(\subseteq\)	\subseteq	\(\supseteq\)	\supseteq	\(\cong\)	\cong
\(\smile\)	\smile	\(\sqsubset\)	\sqsubset	\(\sqsupset\)	\sqsupset
\(\equiv\)	\equiv	\(\frown\)	\frown	\(\sqsubseteq\)	\sqsubseteq
\(\sqsupseteq\)	\sqsupseteq	\(\propto\)	\propto	\(\bowtie\)	\bowtie
\(\in\)	\in	\(\ni\)	\ni	\(\prec\)	\prec
\(\succ\)	\succ	\(\vdash\)	\vdash	\(\dashv\)	\dashv
\(\preceq\)	\preceq	\(\succeq\)	\succeq	\(\models\)	\models
\(\perp\)	\perp	\(\parallel\)	\parallel
\(\mid\)	\mid	\(\bumpeq\)	\bumpeq

Symbol	Command	Symbol	Command	Symbol	Command
\(\nmid\)	\nmid	\(\nleq\)	\nleq	\(\ngeq\)	\ngeq
\(\nsim\)	\nsim	\(\ncong\)	\ncong	\(\nparallel\)	\nparallel
\(\not<\)	\not<	\(\not>\)	\not>	\(\not=\)	\not=
\(\not\le\)	\not\le	\(\not\ge\)	\not\ge	\(\not\sim\)	\not\sim
\(\not|\approx\)	\not\approx	\(\not\cong\)	\not\cong	\(\not\equiv\)	\not\equiv
\(\not\parallel\)	\not\parallel	\(\nless\)	\nless	\(\ngtr\)	\ngtr
\(\lneq\)	\lneq	\(\gneq\)	\gneq	\(\lnsim\)	\lnsim
\(\lneqq\)	\lneqq	\(\gneqq\)	\gneqq

Greek Letters 希腊字母

Lowercase Letters 小写希腊字母

将\后面的小写字母改成大写，就是大写了

Symbol	Command	Symbol	Command	Symbol	Command	Symbol	Command
\(\alpha\)	\alpha	\(\beta\)	\beta	\(\gamma\)	\gamma	\(\delta\)	\delta
\(\epsilon\)	\epsilon	\(\varepsilon\)	\varepsilon	\(\zeta\)	\zeta	\(\eta\)	\eta
\(\theta\)	\theta	\(\vartheta\)	\vartheta	\(\iota\)	\iota	\(\kappa\)	\kappa
\(\lambda\)	\lambda	\(\mu\)	\mu	\(\nu\)	\nu	\(\xi\)	\xi
\(\pi\)	\pi	\(\varpi\)	\varpi	\(\rho\)	\rho	\(\varrho\)	\varrho
\(\sigma\)	\sigma	\(\varsigma\)	\varsigma	\(\tau\)	\tau	\(\upsilon\)	\upsilon
\(\phi\)	\phi	\(\varphi\)	\varphi	\(\chi\)	\chi	\(\psi\)	\psi
\(\omega\)	\omega

Capital Letters 小写希腊字母

Symbol	Command	Symbol	Command	Symbol	Command	Symbol	Command
\(\Gamma\)	\Gamma	\(\Delta\)	\Delta	\(\Theta\)	\Theta	\(\Lambda\)	\Lambda
\(\Xi\)	\Xi	\(\Pi\)	\Pi	\(\Sigma\)	\Sigma	\(\Upsilon\)	\Upsilon
\(\Phi\)	\Phi	\(\Psi\)	\Psi	\(\Omega\)	\Omega	\(\nabla\)	\nabla

Arrows

Symbol	Command	Symbol	Command
\(\gets\)	\gets	\(\to\)	\to
\(\leftarrow\)	\leftarrow	\(\Leftarrow\)	\Leftarrow
\(\rightarrow\)	\rightarrow	\(\Rightarrow\)	\Rightarrow
\(\leftrightarrow\)	\leftrightarrow	\(\Leftrightarrow\)	\Leftrightarrow
\(\mapsto\)	\mapsto	\(\hookleftarrow\)	\hookleftarrow
\(\leftharpoonup\)	\leftharpoonup	\(\leftharpoondown\)	\leftharpoondown
\(\rightleftharpoons\)	\rightleftharpoons	\(\longleftarrow\)	\longleftarrow
\(\Longleftarrow\)	\Longleftarrow	\(\longrightarrow\)	\longrightarrow
\(\Longrightarrow\)\(\implies\)	\Longrightarrow(\implies)	\(\longleftrightarrow\)	\longleftrightarrow
\(\Longleftrightarrow\) \(\iff\)	\Longleftrightarrow(\iff)	\(\longmapsto\)	\longmapsto
\(\hookrightarrow\)	\hookrightarrow	\(\rightharpoonup\)	\rightharpoonup
\(\rightharpoondown\)	\rightharpoondown	\(\leadsto\)	\leadsto
\(\uparrow\)	\uparrow	\(\Uparrow\)	\Uparrow
\(\downarrow\)	\downarrow	\(\Downarrow\)	\Downarrow
\(\updownarrow\)	\updownarrow	\(\Updownarrow\)	\Updownarrow
\(\nearrow\)	\nearrow	\(\searrow\)	\searrow
\(\swarrow\)	\swarrow	\(\nwarrow\)	\nwarrow
\(\overrightarrow{AB}\)	\overrightarrow	\(\overleftarrow{AB}\)	\overleftarrow
\(\overleftrightarrow{AB}\)	\overleftrightarrow

Dots

Symbol	Command	Symbol	Command
\(\cdot\)	\cdot	\(\vdots\)	\vdots
\(\dots\)	\dots	\(\ddots\)	\ddots
\(\cdots\)	\cdots	\(\iddots\)	\iddots

Accents

Symbol	Command	Symbol	Command	Symbol	Command
\(\hat{x}\)	\hat	\(\check{x}\)	\check	\(\dot{x}\)	\dot
\(\breve{x}\)	\breve	\(\acute{x}\)	\acute	\(\ddot{x}\)	\ddot
\(\grave{x}\)	\grave	\(\tilde{x}\)	\tilde	\(\mathring{x}\)	\mathring
\(\bar{x}\)	\bar	\(\vec{x}\)	\vec
\(\vec{\jmath}\)	\vec	\(\tilde{\imath}\)	\tilde
\(\widehat{7+x}\)	\widehat	\(\widetilde{abc}\)	\widetilde

Others 链接

Symbol	Command	Symbol	Command	Symbol	Command
\(\infty\)	\infty	\(\triangle\)	\triangle	\(\angle\)	\angle
\(\aleph\)	\aleph	\(\hbar\)	\hbar	\(\imath\)	\imath
\(\jmath\)	\jmath	\(\ell\)	\ell	\(\wp\)	\wp
\(\Re\)	\Re	\(\Im\)	\Im	\(\mho\)	\mho
\(\prime\)	\prime	\(\emptyset\)	\emptyset	\(\nabla\)	\nabla
\(\surd\)	\surd	\(\partial\)	\partial	\(\top\)	\top
\(\bot\)	\bot	\(\vdash\)	\vdash	\(\dashv\)	\dashv
\(\forall\)	\forall	\(\exists\)	\exists	\(\neg\)	\neg
\(\flat\)	\flat	\(\natural\)	\natural	\(\sharp\)	\sharp
\(\backslash\)	\backslash	\(\Box\)	\Box	\(\Diamond\)	\Diamond
\(\clubsuit\)	\clubsuit	\(\diamondsuit\)	\diamondsuit	\(\heartsuit\)	\heartsuit
\(\spadesuit\)	\spadesuit	\(\Join\)	\Join	\(\blacksquare\)	\blacksquare
\(\diamondsuit\)	\diamondsuit	\(\copyright\)	\copyright	\(\underarc{XYZ}\)	\underarc
\(\heartsuit\)	\heartsuit	\(\overarc{ABC}\)	\overarc	\(\cup\)	\cup
\(\S\)	\S	\(\P\)	\P	\(\Vdash\)	\Vdash
\(\pounds\)	\pounds	\(\in\)	\in	\(\vDash\)	\vDash
\(\bigstar\)	\bigstar	\(\square\)	\square	\(\smiley\)	\smiley
\(\mathbb{R}\)	\mathbb	\(\checkmark\)	\checkmark	\(\cancer\)	\cancer