常用
- 行内公式
$ ...$
,行间公式$$ ... $$
- 指数或上标用
^
,下标用_
- 平方根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{}
- aˉ:
\bar{}
- a:
\vec a
- a~:
\tilde{}
- ∈:
\in
- ∈/:
\notin
小写希腊字母
公式 |
符号 |
α |
\alpha |
β |
\beta |
γ |
\gamma |
δ |
\delta |
ϵ |
\epsilon |
ε |
\varepsilon |
ζ |
\zeta |
θ |
\theta |
ϑ |
\vartheta |
ι |
\iota |
κ |
\kappa |
λ |
\lambda |
μ |
\mu |
ν |
\nu |
ξ |
\xi |
o |
o |
π |
\pi |
ϖ |
\varpi |
ρ |
\rho |
ϱ |
\varrho |
σ |
\sigma |
ς |
\varsigma |
τ |
\tau |
υ |
\upsilon |
ϕ |
\phi |
φ |
\varphi |
χ |
\chi |
ψ |
\psi |
ω |
\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 |
↓ |
\downarrow |
⇑ |
\Uparrow |
⇓ |
\Downarrow |
↕ |
\updownarrow |
⇕ |
\Updownarrow |
→ |
\rightarrow |
← |
\leftarrow |
⇒ |
\Rightarrow |
⇐ |
\Leftarrow |
↔ |
\leftrightarrow |
⇔ |
\Leftrightarrow |
⟶ |
\longrightarrow |
⟵ |
\longleftarrow |
⟹ |
\Longrightarrow |
⟸ |
\Longleftarrow |
↦ |
\mapsto |
⟼ |
\longmapsto |
↩ |
\hookleftarrow |
↪ |
\hookrightarrow |
↼ |
\leftharpoonup |
⇀ |
\rightharpoonup |
↽ |
\leftharpoondown |
⇁ |
\rightharpoondown |
⇌ |
\rightleftharpoons |
⇝ |
\leadsto |
↗ |
\nearrow |
↘ |
\searrow |
↙ |
\swarrow |
↖ |
\nwarrow |
↚ |
\nleftarrow |
↛ |
\nrightarrow |
⇍ |
\nLeftarrow |
⇏ |
\nRightarrow |
↮ |
\nleftrightarrow |
⇎ |
\nLeftrightarrow |
⇢ |
\dashrightarrow |
⇠ |
\dashleftarrow |
⇇ |
\leftleftarrows |
⇆ |
\leftrightarrows |
⇚ |
\Lleftarrow |
↞ |
\twoheadleftarrow |
↢ |
\leftarrowtail |
↫ |
\looparrowleft |
⇋ |
\leftrightharpoons |
↶ |
\curvearrowleft |
↺ |
\circlearrowleft |
↰ |
\Lsh |
↿ |
\upharpoonleft |
⇃ |
\downharpoonleft |
⇈ |
\upuparrows |
⊸ |
\multimap |
↭ |
\leftrightsquigarrow |
⇉ |
\rightrightarrows |
⇄ |
\rightleftarrows |
↠ |
\twoheadrightarrow |
↣ |
\rightarrowtail |
↬ |
\looparrowright |
⇌ |
\rightleftharpoons |
↷ |
\curvearrowright |
↻ |
\circlearrowright |
↱ |
\Rsh |
⇊ |
\downdownarrows |
↾ |
\upharpoonright |
⇂ |
\downharpoonright |
⇝ |
\rightsquigarrow |