常用

  • 行内公式$ ...$,行间公式$$ ... $$
  • 指数或上标用^,下标用_
  • 平方根x\sqrt{x}\sqrt{}
  • 上划线、下划线:\overline{} \underline{}
  • 上、下方大括号: \overbrace{}_{} \underbrace{}_{}
  • 分数:\frac{分子}{分母}
  • 积分运算符:\int_{}^{}
  • 求和运算符:\sum_{}^{}
  • 乘积运算符:\prod_{}^{}
  • a^\hat{a}\hat{}
  • aˉ\bar{a}\bar{}
  • a\vec a\vec a
  • a~\tilde{a}\tilde{}
  • \in\in
  • \notin\notin

小写希腊字母

公式 符号
α\alpha \alpha
β\beta \beta
γ\gamma \gamma
δ\delta \delta
ϵ\epsilon \epsilon
ε\varepsilon \varepsilon
ζ\zeta \zeta
θ\theta \theta
ϑ\vartheta \vartheta
ι\iota \iota
κ\kappa \kappa
λ\lambda \lambda
μ\mu \mu
ν\nu \nu
ξ\xi \xi
oo o
π\pi \pi
ϖ\varpi \varpi
ρ\rho \rho
ϱ\varrho \varrho
σ\sigma \sigma
ς\varsigma \varsigma
τ\tau \tau
υ\upsilon \upsilon
ϕ\phi \phi
φ\varphi \varphi
χ\chi \chi
ψ\psi \psi
ω\omega \omega

箭头系列

感觉有点规律,像是两条线的箭头,公式首字母就是大写的。

符号 公式
\uparrow \uparrow
\downarrow \downarrow
\Uparrow \Uparrow
\Downarrow \Downarrow
\updownarrow \updownarrow
\Updownarrow \Updownarrow
\rightarrow \rightarrow
\leftarrow \leftarrow
\Rightarrow \Rightarrow
\Leftarrow \Leftarrow
\leftrightarrow \leftrightarrow
\Leftrightarrow \Leftrightarrow
\longrightarrow \longrightarrow
\longleftarrow \longleftarrow
\Longrightarrow \Longrightarrow
\Longleftarrow \Longleftarrow
\mapsto \mapsto
\longmapsto \longmapsto
\hookleftarrow \hookleftarrow
\hookrightarrow \hookrightarrow
\leftharpoonup \leftharpoonup
\rightharpoonup \rightharpoonup
\leftharpoondown \leftharpoondown
\rightharpoondown \rightharpoondown
\rightleftharpoons \rightleftharpoons
\leadsto \leadsto
\nearrow \nearrow
\searrow \searrow
\swarrow \swarrow
\nwarrow \nwarrow
\nleftarrow \nleftarrow
\nrightarrow \nrightarrow
\nLeftarrow \nLeftarrow
\nRightarrow \nRightarrow
\nleftrightarrow \nleftrightarrow
\nLeftrightarrow \nLeftrightarrow
\dashrightarrow \dashrightarrow
\dashleftarrow \dashleftarrow
\leftleftarrows \leftleftarrows
\leftrightarrows \leftrightarrows
\Lleftarrow \Lleftarrow
\twoheadleftarrow \twoheadleftarrow
\leftarrowtail \leftarrowtail
\looparrowleft \looparrowleft
\leftrightharpoons \leftrightharpoons
\curvearrowleft \curvearrowleft
\circlearrowleft \circlearrowleft
\Lsh \Lsh
\upharpoonleft \upharpoonleft
\downharpoonleft \downharpoonleft
\upuparrows \upuparrows
\multimap \multimap
\leftrightsquigarrow \leftrightsquigarrow
\rightrightarrows \rightrightarrows
\rightleftarrows \rightleftarrows
\twoheadrightarrow \twoheadrightarrow
\rightarrowtail \rightarrowtail
\looparrowright \looparrowright
\rightleftharpoons \rightleftharpoons
\curvearrowright \curvearrowright
\circlearrowright \circlearrowright
\Rsh \Rsh
\downdownarrows \downdownarrows
\upharpoonright \upharpoonright
\downharpoonright \downharpoonright
\rightsquigarrow \rightsquigarrow