MathJax新手使用教程

  MathJax是一种用HTML和CSS来描述数学和科学公式的开源软件,方便在网络上显示数学公式和符号,插入方法是使用美元符号$将公式括起来

x 2 + 2 x + 1 = ( x + 1 ) 2 x^2 + 2x + 1 = (x + 1)^2 x2+2x+1=(x+1)2

$x^2 + 2x + 1 = (x + 1)^2$

E = m c 2 E=mc^2 E=mc2

$E=mc^2$

α \alpha α

$\alpha$

≠ \neq =

$\neq$

( x y 3 ) (\frac{\sqrt x}{y^3}) (y3x )

$(\frac{\sqrt x}{y^3})$

x 2 ∣ 3 5 = 5 2 − 3 2 \left.x^2\right\rvert_3^5 = 5^2-3^2 x2 35=5232

$\left.x^2\right\rvert_3^5 = 5^2-3^2$

… … … …

< \lt <, > \gt >, ≤ \le , ≥ \ge , ≠ \neq =, ≮ \not\lt <

× \times ×, ÷ \div ÷, ± \pm ±, ∓ \mp , x ⋅ y x\cdot y xy

∪ \cup , ∩ \cap , ∖ \setminus , ⊂ \subset , ⊆ \subseteq , ⊊ \subsetneq , ⊃ \supset , ∈ \in , ∉ \notin /, ∅ \emptyset , ∅ \varnothing

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( n + 1 2 k ) {n+1 \choose 2k} (2kn+1) ( n + 1 2 k ) \binom{n+1}{2k} (2kn+1)

→ \to , ← \gets , → \rightarrow , ← \leftarrow , ⇒ \Rightarrow , ⇐ \Leftarrow , ↦ \mapsto ,    ⟹    \implies ,    ⟺    \iff

∧ \land , ∨ \lor , ¬ \lnot ¬, ∀ \forall , ∃ \exists , ⊤ \top , ⊥ \bot , ⊢ \vdash , ⊨ \vDash

⋆ \star , ∗ \ast , ⊕ \oplus , ∘ \circ , ∙ \bullet

≈ \approx , ∼ \sim , ≃ \simeq , ≅ \cong , ≡ \equiv , ≺ \prec , ⊲ \lhd

∞ \infty , ℵ 0 \aleph_0 0, ∇ \nabla , ∂ \partial , ℑ \Im , ℜ \Re

a ≡ b ( m o d n ) a\equiv b\pmod n ab(modn), a   m o d   17 a\bmod 17 amod17

a 1 , a 2 , … , a n a_1, a_2, \dots, a_n a1,a2,,an, a 1 + a 2 + ⋯ + a n a_1+a_2+\dots+a_n a1+a2++an, ℓ \ell

TeX \TeX TEX, LaTeX \LaTeX LATEX

a b a\quad b ab, a b a\qquad b ab

1 ␣ 1 ␣␣␣␣ 1   1    1 1 1 1␣1␣␣␣␣ 1\,1\;1\quad1\qquad1 1␣1␣␣␣␣11111

{ x ∈ s ∣ x  is extra large } \{x\in s\mid x\text{ is extra large}\} { xsx is extra large}

… \text{…} … \text{…}

x ^ \hat x x^, x y ^ \widehat{xy} xy , x ˉ \bar x xˉ, x y z ‾ \overline{xyz} xyz, x ⃗ \vec x x , x y → \overrightarrow{xy} xy , x y ↔ \overleftrightarrow{xy} xy

d d x x x ˙ = x ˙ 2 + x x ¨ \frac d{dx}x\dot x = \dot x^2 + x\ddot x dxdxx˙=x˙2+xx¨

$ $$$, { \{ { , } \} }, _ \_ _, # \# #, & \& &, \ \backslash \ \ {} _ # & $ \ ∖ \backslash \setminus \

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