# typora中LaTeX公式常用指令
以下指令只能保证在typora中完美显示,但是在其他编辑器中可能会部分不支持
\cal F、X、Y = KaTeX parse error: Expected 'EOF', got '\cal' at position 1: \̲c̲a̲l̲ ̲F,KaTeX parse error: Expected 'EOF', got '\cal' at position 1: \̲c̲a̲l̲ ̲X,KaTeX parse error: Expected 'EOF', got '\cal' at position 1: \̲c̲a̲l̲ ̲Y(部分编辑器可能显示不佳,在这口头描述一下,结果是像被扭了手的大写F,X,Y)
f**_x = fxf_xfx (下标) f^**x = fxf^xfx (上标)
\alpha = α\alphaα \beta = β\betaβ \sigma = σ\sigmaσ \theta = θ\thetaθ
\in = ∈\in∈ \ni = ∋\ni∋ \sub = ⊂\sub⊂ \sube = ⊆\sube⊆
\bf{R} = R\bf{R}R(加深字体)
\dots = …\dots…(省略号) \cdot = ⋅\cdot⋅(点积)
\frac{1}{2} = 12\frac{1}{2}21(分数)
\sum = ∑\sum∑ \sum \limits_a^n = ∑an\sum \limits_a^na∑n
\left(aaa\right) = (aaa)\left(aaa\right)(aaa)(左右括号,并且高度自适应)
\hat f = f^\hat ff^
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