🎓 MathML在线编辑数学公式

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常见公式模板：

x - 5 = 0

\frac{1}{x}

\int x d_{x}

\sum_{i}^{n} a_{i}

x^{2} + 3 x - 4 = 0

(x + 2) (x - 5) = x^{2} - 3 x - 10

x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}

e^{5 x + 1}

lim_{x \to 0} \frac{\sin (x)}{x}

e^{x} = 1 + \frac{x}{1!} + \frac{x^{2}}{2!} + \dots

f (x) = {\begin{matrix} x^{2} & if x \leq 0 \\ \sqrt{x} & if x > 0 \end{matrix}

[\begin{matrix} a \\ b \\ c \end{matrix}]

[\begin{matrix} 0 & 1 & 0 \\ 0 & 0 & 2 \\ 3 & 0 & 0 \end{matrix}]

i ℏ \frac{\partial}{\partial t} Ψ = \frac{- h^{2}}{2 m} \nabla^{2} Ψ + V Ψ

{(x + a)}^{n} = \sum_{k = 0}^{n} (\binom{n}{k}) x^{k} a^{n - k}

{CH}_{4} + 2 O_{2} \to {CO}_{2} + 2 H_{2} O

{}_{0}^{1}n + {}_{92}^{235}U \to {}_{56}^{141}{Ba} + {}_{36}^{92}{Kr} + 3 {}_{0}^{1}n

{Ca}^{2+} + 2 {Cl}^{-} + 2 {Ag}^{+} + 2 {NO}_{3}^{-} \to {Ca}^{2+} + 2 {NO}_{3}^{-} + 2 Ag Cl (s)

常见常数和运算符号：

α

<mn>α</mn>

∢

<mo>&angsph;</mo>

\approx

<mo>≈</mo>

\cap

<mo>∩</mo>

\circ

<mo>&compfn;</mo>

ℂ

<mn>&complexes;</mn>

≅

<mo>&cong;</mo>

\cup

<mo>∪</mo>

\div

<mo>&div;</mo>

∅

<mn>&emptyset;</mn>

\exists

<mo>∃</mo>

\forall

<mo>∀</mo>

\geq

<mo>&geq;</mo>

≫

<mo>&gg;</mo>

>

<mo>></mo>

ℏ

<mn>&hbar;</mn>

\Leftrightarrow

<mo>&iff;</mo>

∞

<mn>∞</mn>

\int

<mo>∫</mo>

ℤ

<mn>&integers;</mn>

\in

<mo>∈</mo>

\leq

<mo>&leq;</mo>

≪

<mo>&ll;</mo>

<

<mo><</mo>

\mapsto

<mo>&mapsto;</mo>

\cdot

<mo>·</mo>

\mp

<mo>&mp;</mo>

ℕ

<mn>&naturals;</mn>

\neq

<mo>≠</mo>

\neg

<mo>¬</mo>

\notin

<mo>∉</mo>

\oplus

<mo>&oplus;</mo>

π

<mn>π</mn>

\pm

<mo>&pm;</mo>

\propto

<mo>&propto;</mo>

ℚ

<mn>&rationals;</mn>

ℝ

<mn>&reals;</mn>

\to

<mo>&rightarrow;</mo>

⇒

<mn>&Rightarrow;</mn>

∖

<mo>&setminus;</mo>

\sim

<mo>&sim;</mo>

\subset

<mo>&subset;</mo>

\sum

<mo>∑</mo>

\supset

<mo>&supset;</mo>

\times

<mo>×</mo>

\lor

<mo>&vee;</mo>

\land

<mo>&wedge;</mo>

≙

<mo>&wedgeq;</mo>

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