⚠️ Inline KaTeX/MathJax $...$ inside [grid] can leak BBCode when used with [details]

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so i thought i’d Update everything on the admin panel, and set about doing some tests

[details="deriving the formula for cartesian curl"]
[grid]
$$
\nabla \times \mathbf{A} = \left| \begin{matrix}
\hat{i} & \hat{j} & \hat{k} \\
\partial_x & \partial_y & \partial_z \\
A_x & A_y & A_z
\end{matrix} \right|
$$
$$
\nabla \times \mathbf{A} = \left| \begin{matrix}
\hat{i} & \hat{j} & \hat{k} \\
\partial_x & \partial_y & \partial_z \\
A_x & A_y & A_z
\end{matrix} \right|
$$
[/grid]

[grid]
$$
\begin{align*}
\nabla \times \mathbf{A} =\ 
&\hat{i} \left| \begin{matrix}
\partial_y & \partial_z \\
A_y & A_z
\end{matrix} \right|
- \hat{j} \left| \begin{matrix}
\partial_x & \partial_z \\
A_x & A_z
\end{matrix} \right| \\
&+ \hat{k} \left| \begin{matrix}
\partial_x & \partial_y \\
A_x & A_y
\end{matrix} \right|
\end{align*}
$$

$$
\begin{align*}
\nabla \times \mathbf{A} =\ 
&\hat{i} \left| \begin{matrix}
\partial_y & \partial_z \\
A_y & A_z
\end{matrix} \right|
+ \hat{j} \left| \begin{matrix}
A_z & A_x \\
\partial_z & \partial_x
\end{matrix} \right| \\
&+ \hat{k} \left| \begin{matrix}
\partial_x & \partial_y \\
A_x & A_y
\end{matrix} \right|
\end{align*}
$$
[/grid]
[/details]

A vibrant, close-up photograph depicts a red poppy in full bloom, showcasing its delicate, crinkled petals and dark central seed pod against a blurred green background. (Captioned by AI)
A vibrant, close-up photograph depicts a red poppy in full bloom, showcasing its delicate, crinkled petals and dark central seed pod against a blurred green background. (Captioned by AI)1513×820 32.7 KB

pass :white_check_mark:

AI being daft by putting excessive whitespace between two $...$ in grid 
[details="deriving the formula for cartesian curl"] 
[grid]
$\nabla \times \mathbf{A} = \left| \begin{matrix}
\hat{i} & \hat{j} & \hat{k} \\
\partial_x & \partial_y & \partial_z \\
A_x & A_y & A_z
\end{matrix} \right|$

$\nabla \times \mathbf{A} = \left| \begin{matrix}
\hat{i} & \hat{j} & \hat{k} \\
\partial_x & \partial_y & \partial_z \\
A_x & A_y & A_z
\end{matrix} \right|$
[/grid]

[grid]
$\begin{aligned}
\nabla \times \mathbf{A} =\ 
&\hat{i} \left| \begin{matrix}
\partial_y & \partial_z \\
A_y & A_z
\end{matrix} \right|
- \hat{j} \left| \begin{matrix}
\partial_x & \partial_z \\
A_x & A_z
\end{matrix} \right| \\
&+ \hat{k} \left| \begin{matrix}
\partial_x & \partial_y \\
A_x & A_y
\end{matrix} \right|
\end{aligned}$

$\begin{aligned}
\nabla \times \mathbf{A} =\ 
&\hat{i} \left| \begin{matrix}
\partial_y & \partial_z \\
A_y & A_z
\end{matrix} \right|
+ \hat{j} \left| \begin{matrix}
A_z & A_x \\
\partial_z & \partial_x
\end{matrix} \right| \\
&+ \hat{k} \left| \begin{matrix}
\partial_x & \partial_y \\
A_x & A_y
\end{matrix} \right|
\end{aligned}$
[/grid]
[/details]

A fluffy, white Samoyed dog stands proudly in a snowy landscape, looking directly at the camera with a cheerful expression. (Captioned by AI)
A fluffy, white Samoyed dog stands proudly in a snowy landscape, looking directly at the camera with a cheerful expression. (Captioned by AI)1489×831 33.5 KB

fail :cross_mark:

[details="deriving the formula for spherical curl"]

[grid]
$$
\nabla \times \mathbf{A} =
\frac{1}{r^2 \sin\theta}
\left| \begin{matrix}
\hat{r} & r\hat{\theta} & r\sin\theta\,\hat{\phi} \\
\partial_r & \partial_\theta & \partial_\phi \\
A_r & r A_\theta & r\sin\theta\, A_\phi
\end{matrix} \right|
$$

$$
= \frac{1}{r^2 \sin\theta}
\left| \begin{matrix}
\hat{r} & \hat{\theta} & \hat{\phi} \\
\partial_\theta & \partial_\phi & \partial_r \\
r A_\theta & r \sin\theta A_\phi & A_r
\end{matrix} \right|
$$
[/grid]

[grid]
$$
\begin{align*}
= \frac{1}{r^2 \sin\theta} \Big(
&\hat{r} \left| \begin{matrix} \partial_\theta & \partial_\phi \\ r A_\theta & r \sin\theta A_\phi \end{matrix} \right|
\ \\&- \hat{\theta} \left| \begin{matrix} \partial_r & \partial_\phi \\ A_r & r \sin\theta A_\phi \end{matrix} \right| \\
&+ \hat{\phi} \left| \begin{matrix} \partial_r & \partial_\theta \\ A_r & r A_\theta \end{matrix} \right|
\Big)
\end{align*}
$$

$$
\begin{align*}
= \frac{1}{r^2 \sin\theta} \Big(
&\hat{r} \left| \begin{matrix} \partial_\phi & \partial_r \\ r \sin\theta A_\phi & A_r \end{matrix} \right|
\ \\&+ \hat{\theta} \left| \begin{matrix} A_r & r \sin\theta A_\phi \\ \partial_r & \partial_\phi \end{matrix} \right| \\
&+ \hat{\phi} \left| \begin{matrix} \partial_\theta & \partial_r \\ r A_\theta & A_r \end{matrix} \right|
\Big)
\end{align*}
$$
[/grid]

[/details]

A fluffy, white dog with floppy ears sits attentively on a patterned rug, looking slightly to the left with a cheerful expression. (Captioned by AI)
A fluffy, white dog with floppy ears sits attentively on a patterned rug, looking slightly to the left with a cheerful expression. (Captioned by AI)1499×833 39.6 KB

pass :white_check_mark:

[details="deriving the formula for spherical curl"]

[grid]
$$
\nabla \times \mathbf{A} =
\frac{1}{r^2 \sin\theta}
\left| \begin{matrix}
\hat{r} & r\hat{\theta} & r\sin\theta\,\hat{\phi} \\
\partial_r & \partial_\theta & \partial_\phi \\
A_r & r A_\theta & r\sin\theta\, A_\phi
\end{matrix} \right|
$$

$$
= \frac{1}{r^2 \sin\theta}
\left| \begin{matrix}
\hat{r} & \hat{\theta} & \hat{\phi} \\
\partial_\theta & \partial_\phi & \partial_r \\
r A_\theta & r \sin\theta A_\phi & A_r
\end{matrix} \right|
$$
[/grid]

[grid]
$\begin{align*}
= \frac{1}{r^2 \sin\theta} \Big(
&\hat{r} \left| \begin{matrix} \partial_\theta & \partial_\phi \\ r A_\theta & r \sin\theta A_\phi \end{matrix} \right|
\ \\&- \hat{\theta} \left| \begin{matrix} \partial_r & \partial_\phi \\ A_r & r \sin\theta A_\phi \end{matrix} \right| \\
&+ \hat{\phi} \left| \begin{matrix} \partial_r & \partial_\theta \\ A_r & r A_\theta \end{matrix} \right|
\Big)
\end{align*}$ $\begin{align*}
= \frac{1}{r^2 \sin\theta} \Big(
&\hat{r} \left| \begin{matrix} \partial_\phi & \partial_r \\ r \sin\theta A_\phi & A_r \end{matrix} \right|
\ \\&+ \hat{\theta} \left| \begin{matrix} A_r & r \sin\theta A_\phi \\ \partial_r & \partial_\phi \end{matrix} \right| \\
&+ \hat{\phi} \left| \begin{matrix} \partial_\theta & \partial_r \\ r A_\theta & A_r \end{matrix} \right|
\Big)
\end{align*}$
[/grid]

[/details]

A brightly coloured hot air balloon, adorned with patchwork patterns, floats peacefully against a clear blue sky. (Captioned by AI)
A brightly coloured hot air balloon, adorned with patchwork patterns, floats peacefully against a clear blue sky. (Captioned by AI)1491×821 41.9 KB

pass :white_check_mark:

[details="deriving the formula for spherical curl"]

[grid]
$$
\nabla \times \mathbf{A} =
\frac{1}{r^2 \sin\theta}
\left| \begin{matrix}
\hat{r} & r\hat{\theta} & r\sin\theta\,\hat{\phi} \\
\partial_r & \partial_\theta & \partial_\phi \\
A_r & r A_\theta & r\sin\theta\, A_\phi
\end{matrix} \right|
$$

$$
= \frac{1}{r^2 \sin\theta}
\left| \begin{matrix}
\hat{r} & \hat{\theta} & \hat{\phi} \\
\partial_\theta & \partial_\phi & \partial_r \\
r A_\theta & r \sin\theta A_\phi & A_r
\end{matrix} \right|
$$
[/grid]

[grid] $\begin{align}
= \frac{1}{r^2 \sin\theta} \Big(
&\hat{r} \left| \begin{matrix} \partial_\theta & \partial_\phi \\ r A_\theta & r \sin\theta A_\phi \end{matrix} \right|
\ \\&- \hat{\theta} \left| \begin{matrix} \partial_r & \partial_\phi \\ A_r & r \sin\theta A_\phi \end{matrix} \right| \\
&+ \hat{\phi} \left| \begin{matrix} \partial_r & \partial_\theta \\ A_r & r A_\theta \end{matrix} \right|
\Big)
\end{align}$ $\begin{align}
= \frac{1}{r^2 \sin\theta} \Big(
&\hat{r} \left| \begin{matrix} \partial_\phi & \partial_r \\ r \sin\theta A_\phi & A_r \end{matrix} \right|
\ \\&+ \hat{\theta} \left| \begin{matrix} A_r & r \sin\theta A_\phi \\ \partial_r & \partial_\phi \end{matrix} \right| \\
&+ \hat{\phi} \left| \begin{matrix} \partial_\theta & \partial_r \\ r A_\theta & A_r \end{matrix} \right|
\Big)
\end{align}$ [/grid]

[/details]

that’s where it fails

The image displays a complex mathematical formula and derivation process, likely related to spherical coordinates and vector calculus, presented in a code-like format with various symbols and equations. (Captioned by AI)
The image displays a complex mathematical formula and derivation process, likely related to spherical coordinates and vector calculus, presented in a code-like format with various symbols and equations. (Captioned by AI)1482×825 42.6 KB

:warning: the problem is that i’m putting too few whitespace between [grid] → object and/or object → [/grid]