Obsidan之数学公式的输入_obsidian数学公式-CSDN博客
MathJax basic tutorial and quick reference - Mathematics Meta Stack Exchange

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$$
\begin{aligned}a=b+c\\b=c-a\\c=a+b \end{aligned}
$$

a=b+cb=c−ac=a+b\begin{aligned}a=b+c\\b=c-a\\c=a+b \end{aligned} 

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$$
\begin{matrix}已知y=\sqrt{x+3}&&(x>=0)\\求y的最大值是多少 \end{matrix}
$$

已知y=x+3(x>=0)求y的最大值是多少\begin{matrix}已知y=\sqrt{x+3}&&(x>=0)\\求y的最大值是多少 \end{matrix} 

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$$
\begin{bmatrix}已知y=\sqrt{x+3}&&(x>=0)\\求y的最大值是多少 \end{bmatrix}
$$

[已知y=x+3(x>=0)求y的最大值是多少]\begin{bmatrix}已知y=\sqrt{x+3}&&(x>=0)\\求y的最大值是多少 \end{bmatrix} 

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$$
\begin{Bmatrix}已知y=\sqrt{x+3}&&(x>=0)\\求y的最大值是多少 \end{Bmatrix}
$$

{已知y=x+3(x>=0)求y的最大值是多少}\begin{Bmatrix}已知y=\sqrt{x+3}&&(x>=0)\\求y的最大值是多少 \end{Bmatrix} 

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$$
 \begin{vmatrix}
 0&1&2\\
 3&4&5\\
 6&7&8\\
 \end{vmatrix}
$$

∣012345678∣ \begin{vmatrix} 0&1&2\\ 3&4&5\\ 6&7&8\\ \end{vmatrix} 

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$$
 \begin{Vmatrix}
 0&1&2\\
 3&4&5\\
 6&7&8\\
 \end{Vmatrix}
$$

∥012345678∥ \begin{Vmatrix} 0&1&2\\ 3&4&5\\ 6&7&8\\ \end{Vmatrix}

关系运算符和二进制运算符

∗\ast±\pm∩\cap⊲\lhd⋆\star∓\mp∪\cup⊳\rhd⋅\cdot⨿\amalg⊎\uplus∘\circ⊙\odot⊓\sqcap∙\bullet⊖\ominus⊔\sqcup◯\bigcirc⊕\oplus∧\wedge⋄\diamond⊘\oslash∨\vee×\times⊗\otimes†\dagger÷\div≀\wr‡\ddagger⋅\centerdot□\Box⊼\barwedge⊛\circledast⊞\boxplus⋏\curlywedge⊚\circledcirc⊟\boxminus⋒\Cap⊝\circleddash⊠\boxtimes⊥\bot∔\dotplus⊡\boxdot⊺\intercal⋇\divideontimes□\square⩞\doublebarwedge≡\equiv≤\leq≥\geq⊥\perp≅\cong≺\prec≻\succ∣\mid≠\neq⪯\preceq⪰\succeq∥\parallel∼\sim≪\ll≫\gg⋈\bowtie≃\simeq⊂\subset⊃\supset⋈\Join≈\approx⊆\subseteq⊇\supseteq⋉\ltimes≍\asymp⊏\sqsubset⊐\sqsupset⋊\rtimes≐\doteq⊑\sqsubseteq⊒\sqsupseteq⌣\smile∝\propto⊢\vdash⊣\dashv⌢\frown⊨\models∈\in∋\ni∉\notin\begin{matrix} \ast & \backslash ast & \pm & \backslash pm & \cap & \backslash cap & \lhd & \backslash lhd \\ \star & \backslash star & \mp & \backslash mp & \cup & \backslash cup & \rhd & \backslash rhd \\ \cdot & \backslash cdot & \amalg & \backslash amalg & \uplus & \backslash uplus \\ \circ & \backslash circ & \odot & \backslash odot & \sqcap & \backslash sqcap \\ \bullet & \backslash bullet & \ominus & \backslash ominus & \sqcup & \backslash sqcup \\ \bigcirc & \backslash bigcirc & \oplus & \backslash oplus & \wedge & \backslash wedge \\ \diamond & \backslash diamond & \oslash & \backslash oslash & \vee & \backslash vee \\ \times & \backslash times & \otimes & \backslash otimes & \dagger & \backslash dagger \\ \div & \backslash div & \wr & \backslash wr & \ddagger & \backslash ddagger \\ \centerdot & \backslash centerdot & \Box & \backslash Box & \barwedge & \backslash barwedge \\ \circledast & \backslash circledast & \boxplus & \backslash boxplus & \curlywedge & \backslash curlywedge \\ \circledcirc & \backslash circledcirc & \boxminus & \backslash boxminus & \Cap & \backslash Cap \\ \circleddash & \backslash circleddash & \boxtimes & \backslash boxtimes & \bot & \backslash bot \\ \dotplus & \backslash dotplus & \boxdot & \backslash boxdot & \intercal & \backslash intercal \\ \divideontimes & \backslash divideontimes & \square & \backslash square & \doublebarwedge & \backslash doublebarwedge \\ \\ \equiv & \backslash equiv & \leq & \backslash leq & \geq & \backslash geq & \perp & \backslash perp \\ \cong & \backslash cong & \prec & \backslash prec & \succ & \backslash succ & \mid & \backslash mid \\ \neq & \backslash neq & \preceq & \backslash preceq & \succeq & \backslash succeq & \parallel & \backslash parallel \\ \sim & \backslash sim & \ll & \backslash ll & \gg & \backslash gg & \bowtie & \backslash bowtie \\ \simeq & \backslash simeq & \subset & \backslash subset & \supset & \backslash supset & \Join & \backslash Join \\ \approx & \backslash approx & \subseteq & \backslash subseteq & \supseteq & \backslash supseteq & \ltimes & \backslash ltimes \\ \asymp & \backslash asymp & \sqsubset & \backslash sqsubset & \sqsupset & \backslash sqsupset & \rtimes & \backslash rtimes \\ \doteq & \backslash doteq & \sqsubseteq & \backslash sqsubseteq & \sqsupseteq & \backslash sqsupseteq & \smile & \backslash smile \\ \propto & \backslash propto & \vdash & \backslash vdash & \dashv & \backslash dashv & \frown & \backslash frown \\ \models & \backslash models & \in & \backslash in & \ni & \backslash ni & \notin & \backslash notin \\ \end{matrix}