I can no longer render LaTeX

[renormalize]

Testing inline $\Omega=ab\mu^{\nu}\text{ test}$ code. Testing display$$\Omega=ab\mu^{\nu}\text{ test}$$code.
Both inline and display tags now work reliably for me in preview. Eureka!

 

[Greg Bernhardt]

@fresh_42 it's adding in the ampersand code?

 

[fresh_42]

Let's see.

\begin{align*}
\begin{pmatrix}1&0\\0&1\end{pmatrix}&=\mathbb{I}_2
\end{align*}

\begin{align*}
\begin{pmatrix}1&0\\0&1\end{pmatrix}&=\mathbb{I}_2
\end{align*}

results in ...

a) no preview at all
and then corrected to

$$
\begin{align*}
\begin{pmatrix}1&0\\0&1\end{pmatrix}&=\mathbb{I}_2
\end{align*}
$$

$$
\begin{align*}
\begin{pmatrix}1&0\\0&1\end{pmatrix}&=\mathbb{I}_2
\end{align*}
$$
resulted in ...

b) a correct preview, and (sic!) it also previewed the first version without math tags correctly this time. But it did not on the first attempt. (I have no idea why.)

So now we will see what happens after hitting the post reply button.

Edit 1:
c) Page refresh is necessary

Edit 2:
d) Still, both versions are correct.

See what will happen after a while and/or leave the page.

Edit 3:
e) No additional amp; notes this time. I don't know what happened the first time.

I try to do it with the same code again:

##\begin{pmatrix}a&b\end{pmatrix}##
[itex]\begin{pmatrix}c&d\end{pmatrix}[/itex]
$$\begin{pmatrix}e&f\end{pmatrix}$$
[tex]\begin{pmatrix}g&h\end{pmatrix}[/tex]

$\begin{pmatrix}a&b\end{pmatrix}$
\begin{pmatrix}c&d\end{pmatrix}
$$\begin{pmatrix}e&f\end{pmatrix}$$
\begin{pmatrix}g&h\end{pmatrix}

f) Ctrl+C still copies the additional commands <br> and amp; into the buffer.
g) The preview is correct.

General observation from other threads: the quoted texts do not resolve TeX commands.

I close the edit session now.

Edit 4:
h) The post has been displayed correctly (after one refresh).
i) After the second refresh, I have again the amp; tags on the screen.
j) This occurs only in the lines that used [ tex ] and [ itex ] commands, not on the lines with hastags or dollars.

 

[kuruman]

The motional emf across an oriented segment $d\mathbf l$ is $$d(\text{emf})=\mathbf E\cdot d\mathbf l= (\mathbf v\times \mathbf B)\cdot d\mathbf l.$$Now $$\begin{align}& \mathbf E=(\mathbf v\times \mathbf B)=(\boldsymbol{\omega}\times \mathbf{r})\times\mathbf B \nonumber \\& = \mathbf B\times(\mathbf {r}\times \boldsymbol{\omega}) \nonumber \\& =\cancelto{0}{\mathbf r(\mathbf B\cdot \boldsymbol{\omega})}-\boldsymbol{\omega}(\mathbf B\cdot \mathbf r) =-\omega B r\cos\!\theta ~\mathbf {\hat y}.\end{align}$$

The motional emf across an oriented segment ##d\mathbf l## is $$
d(\text{emf})=\mathbf E\cdot d\mathbf l= (\mathbf v\times \mathbf B)\cdot d\mathbf l.$$ Now $$
\begin{align}& \mathbf E=(\mathbf v\times \mathbf B)
=(\boldsymbol{\omega}\times \mathbf{r})\times\mathbf B \nonumber \\
 = \mathbf B\times(\mathbf {r}\times \boldsymbol{\omega}) \nonumber \\
& =\cancelto{0}{\mathbf r(\mathbf B\cdot \boldsymbol{\omega})}-\boldsymbol{\omega}
(\mathbf B\cdot \mathbf r)=-\omega B r\cos\!\theta ~\mathbf {\hat y}.\end{align}$$

I had to change all &amp; to just &.
Looking good! Thanks Greg.

 

[JimWhoKnew]

Try now, I've been tinkering this entire time and maybe I got it. Clear cache and reload.

Thanks, Greg

Edit:
And it also seems to render much faster than before.

 

[JimWhoKnew]

The preview seems to function fine (thanks again), but LaTeX inside quotations is now presented as text even after submission of the reply. For example, the quote in this post doesn't show the equations as LaTeX on my browser.

 

[JimWhoKnew]

The preview seems to function fine (thanks again), but LaTeX inside quotations is now presented as text even after submission of the reply. For example, the quote in this post doesn't show the equations as LaTeX on my browser.

I see now that I have a similar problem with the "Homework Statement", "Relevant Equations" and "TL;DR Summary" sections.

 

[fresh_42]

I assume that it doesn't render in any tags.

Test 1:

$\mathbb{Z}$

Spoiler

$\mathbb{Z}$

$\mathbb{Z}$


Edit: Strange, it had worked in the preview.