\begin{align}[x]+1\end{align} bug

• error : \begin{align}[x]+1\end{align}

• error : ${\displaystyle {\begin{aligned}[x]+1\end{aligned}}}$

• ok : [x]+1

• ok : ${\displaystyle [x]+1}$

• ok : \begin{align}\left[x\right]+1\end{align}

• ok : ${\displaystyle {\begin{aligned}\left[x\right]+1\end{aligned}}}$

• ok : \begin{array}{l}[x]+1\end{array}

• ok : ${\displaystyle {\begin{array}{l}[x]+1\end{array}}}$

• ok : \begin{align}\left[x\right]+1 \\ \left[y\right]+1 \end{align}

• ok : ${\displaystyle {\begin{aligned}\left[x\right]+1\\\left[y\right]+1\end{aligned}}}$

• error : \begin{align}[x]+1 \\ [y]+1 \end{align}

• error : Failed to parse (Conversion error. Server ("https://wikimedia.org/api/rest_") reported: "Cannot get mml. TeX parse error: Bracket argument to \\ must be a dimension"): {\displaystyle {\begin{aligned}[x]+1\\[y]+1\end{aligned}}}

math \text test

${\displaystyle {\begin{array}{|l|}{\text{abcdefghijk}}\\1234567890\\{\text{中华人民共和国}}\\{\text{にっぽんこく}}\\{\text{대한민국서울확인}}\\\end{array}}}$

abcdefghijk

1234567890

가나다라마바사아

<math>\begin{array}{|l|} \text{abcdefghijk} \\ 1234567890 \\ \text{가나다라마바사아} \\ \end{array}</math> abcdefghijk 1234567890 가나다라마바사아

\mbox{} \text{} \hbox

• ${\displaystyle |{\mbox{fax to 123 and 집에 가라 go to home ABC}}|ABC}$ : \mbox :
• ${\displaystyle |{\text{fax to 123 and 집에 가라 go to home ABC}}|ABC}$  :\text :
• ${\displaystyle |{\hbox{fax to 123 and 집에 가라 go to home ABC}}|ABC}$ : hbox

chem test

${\displaystyle \sum _{n=1}^{\infty }{\frac {\mu (n)}{n^{s}}}=\prod _{p{\text{는 소수}}}~~\left(1-{\frac {1}{p^{s}}}\right)}$

챔테스트 되냐고..

$${\displaystyle ({\text{각}}\left({\frac {\pi }{2}}-\theta \right){\text{의 인접변은}}{\mbox{의 인접변}}}$$

${\displaystyle {\ce {CO2 + C -> 2 CO = CO2 + C -> 2 CO}}}$

${\displaystyle {\ce {CaCO3 (s) + CO2 (aq) + H2O (l) <=> Ca^2+ (aq) + 2HCO3^- (aq)}}}$ 아 정말짜증나

per mille

5‰

5‰

${\displaystyle 5{\text{‰ is good}}}$

${\displaystyle 5\operatorname {test} }$

Failed to parse (syntax error): {\displaystyle 5\operatorname{‰} }

Failed to parse (syntax error): {\displaystyle 5\mathop{‰} }

Failed to parse (syntax error): {\displaystyle 5\text{"&permil;"}}

chem test

math test

chem test

This should be CO₂ + C → 2CO

${\displaystyle {\ce {CO2 + C -> 2 CO}}}$