Why do the equations seem to run off the page for me? And I can’t follow by swipping…
You must be using a dark theme. With a light theme, there’s just a drop shadow. The shadow looks fine, but in dark mode it’s reversed, giving it a glow instead of a shadow. I agree that it looks a bit odd.
The formatting for long expressions isn’t great, particularly on mobile (probably Discourse’s fault). However, you can see the whole expression by right-clicking (or long-pressing) to bring up the context menu, then going Math Settings->Zoom Trigger->Double click (the others don’t work on mobile). Then double-tap the expression and it will bring up a zoomed, scrollable pop-up window.
It was my understanding there would be no math.
Thanks. Yes I was on my phone. I did see the popup context menu but couldn’t get it to work… didn’t try double click though…
Once you start studying computational neuroscience, you realize that all cognition is all math—even (or perhaps especially) emotion and aesthetics—and a little bit of thermodynamics. The rest is just a cacciucco of amino acids, lipids, saccharides, and salts.
Stranger
Or you could just watch a lot of TV and get through life by making pop culture references.

∇⋅E=ρϵ0(Gauss’s law)∇⋅B=0(Gauss’s law for magnetism)∇×E=−∂B∂t(Maxwell–Faraday equation)∇×B=μ0(J+ϵ0∂E∂t)( Ampère’s circuital law)
Just quoting this to see how it looks in the quote thingy, and then whether the quote thingy will actually reconstruct the quoted passage.
edit: That’s a negative. Quoting it just doesn’t work.

edit: That’s a negative. Quoting it just doesn’t work.
It actually does work, though oddly only if you click the down-arrow in the quote box. Otherwise you get a sorta compressed version of it.
ETA: But my sub-quote of myself doesn’t work, because there’s no expansion arrow.

edit: That’s a negative. Quoting it just doesn’t work.
Highlight quoting never captures formatting correctly. I recommend only using it on plain text (Italics, bold, and links are fine.) Instead, you can click reply and then click the quote icon in the upper left, then edit out any part you don’t want to quote.
We haz colors!
(Although rather painfully.)
{\color[RGB]{0,0,255} \mathrm{{This\: is\: blue\: text}}} \\ {\color[RGB]{255,0,0} \mathrm{{This\: is\: red\: text}}} \\ \mathbf{{\color[RGB]{0,128,0} Bold\: green}}
{\fcolorbox{green}{Goldenrod}{And also boxes}}
When I first read the thread title, I thought MathJax was a new user, LOL.
Cool addition regardless.
Does this work?
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}
E=mc^2
Heyyyyy!
\Delta x\Delta p \ge {h \over 4\pi}
“over” works too.
{h \over 4\pi}

We haz colors!
(Although rather painfully.){\color[RGB]{0,0,245} \mathrm{{This\: is\: blue\: text}}} \\ {\color[RGB]{155,0,0} \mathrm{{This\: is\: red\: text}}} \\ \mathbf{{\color[RGB]{0,128,0} Bold\: green}}
Are those the only colors? If so, it seems kinda labor intensive, for not much reward.

{\fcolorbox{indigo}{Magenta}{And also boxes}}
I see you can tweak the box colors, though.
RGB 0.128.255 you can set millions of colors, in theory 16,777,216 colors.
{\color[RGB]{0,128,255} \mathrm{{This\: is\: cyan\: text}}} \\ {\color[RGB]{255,128,0} \mathrm{{This\: is\: orange\: text}}} \\
I think I get it now. Still pretty labor-intensive. Getting a colors icon in the edit box would be nice (although I suspect that keeping it labor-intensive might be the preference of TPTB).