常用数学符号的markdown形式

时间:2023-01-21 14:42:19

1.一般公式

y=x^2

y=x2

\dfrac{\tfrac{1}{2}[1-(\tfrac{1}{2})^n]}{1-\tfrac{1}{2}}=s_n

12[1(12)n]112=sn

2=\left(\frac{(3-x) \times 2}{3-x}\right)

2=((3x)×23x)

\sum_{m=1}^\infty\sum_{n=1}^\infty\frac{m^2\,n}{3^m\left(m\,3^n+n\,3^m\right)}

m=1n=1m2n3m(m3n+n3m)

\phi_n(\kappa)=
\frac{1}{4\,\pi^2\,\kappa^2}
\int_0^\infty
\frac{sin(\kappa\,R)}{\kappa\,R}
\frac{\partial}{\partial\,R}
\left[R^2\frac{\partial D_n(R)}{\partial R}\right]\,dR

ϕn(κ)=14π2κ20sin(κR)κRR[R2Dn(R)R]dR

2.希腊字母


1-\alpha
2-\beta
3-\gamma
4-\Gamma
5-\delta
6-\Delta
7-\epsilon
8-\varepsilon
9-\zeta
10-\eta
11-\theta
12-\Theta
13-\vartheta
14-\iota
15-\kappa
16-\lambda
17-\Lambda
18-\mu
19-\nu
20-\xi
21-\Xi 
22-o 
23-\pi 
24-\Pi 
25-\varpi  
26-\rho
27-\varrho  
28-\sigma 
29-\Sigma 
30-\varsigma  
31-\tau 
32-\upsilon 
33-\Upsilon
34-\phi 
35-\Phi 
36-\varphi  
37-\chi 
38-\psi 
39-\Psi 
40-\omega 
41-\Omega

1α
2β
3γ
4Γ
5δ
6Δ
7ϵ
8ε
9ζ
10η
11θ
12Θ
13ϑ
14ι
15κ
16λ
17Λ
18μ
19ν
20ξ
21Ξ
22o
23π
24Π
25ϖ
26ρ
27ϱ
28σ
29Σ
30ς
31τ
32υ
33Υ
34ϕ
35Φ
36φ
37χ
38ψ
39Ψ
40ω
41Ω

3.数学符号

1-\pm
2-\times
3-\div
4-\mid
5-\cdot
6-\circ
7-\ast
8-\bigodot
9-\bigotimes
10-\bigoplus
11-\leq
12-\geq
13-\neq
14-\approx
15-\equiv
16-\sum
17-\prod
18-\coprod

1±
2×
3÷
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

4.集合运算符

1-\emptyset 
2-\in
3-\notin
4-\subset
5-\supset
6-\subseteq
7-\supseteq
8-\bigcap
9-\bigcup
10-\bigvee
11-\bigwedge
12-\biguplus
13-\bigsqcup

1
2
3
4
5
6
7
8
9
10
11
12
13

5.对数运算符

1-\log 
2-\lg
3-\ln

1log
2lg
3ln

6.三角运算符

1-\bot 
2-\angle
3-30^\circ
4-\sin
5-\cos
6-\tan
7-\cot
8-\sec
9-\csc

1
2
330
4sin
5cos
6tan
7cot
8sec
9csc

7.微积分运算符

1-y\prime 
2-\int
3-\iint
4-\iiint
5-\iiint
6-\oint
7-\lim
8-\infty
9-\nabla

1y
2
3
4
5
6
7lim
8
9

8.逻辑运算符

1-\because 
2-\therefore
3-\forall
4-\exists
5-\not=
6-\not>
7-\not\subset

1
2
3
4
5
6
7⊄

9.戴帽运算符

1-\hat{y} 
2-\check{y}
3-\breve{y}

1y^
2yˇ
3y˘

10连线运算符

1-\overline{a+b+c+d} 
2-\underline{a+b+c+d}
3-\overbrace{a+\underbrace{b+c}_{1.0}+d}^{2.0}

1a+b+c+d¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
2a+b+c+d
3a+b+c1.0+d2.0

11.箭头符号

1-\uparrow 
2-\downarrow
3-\Uparrow
4-\Downarrow
5-\rightarrow
6-\leftarrow
7-\Rightarrow
8-\Leftarrow
9-\longrightarrow
10-\longleftarrow
11-\Longrightarrow
12-\Longleftarrow

1
2
3
4
5
6
7
8
9
10
11
12

12.使用指定字体


1-\rm text    
2-\it text
3-\bf text 
 

1text
2text
3text

未完待续…