Can't add LaTeX equations to posts anymore?

$$\sqrt[3]{27}$$
$$\sqrt[3]{27}$$

Am I using the right syntax? Not only that, posts before that happened broke.

Was it my browser otherwise?

probably your theme, as it works for me.
image

Snap! Theme

Which theme do you use?

This is strange. The feature was turned off when I checked just now. I turned it on again. But when I try it... $$\sqrt$$ it doesn't seem to work.

$\sqrt{???}$
\sqrt{???}
\mathsf{It\ does?\ Was\ it\ supposed\ to\ be\ enclosed\ in\ single\ \$\ symbols\ instead\ of\ double?}

you need to put something inside it $$\sqrt{something}$$$$\sqrt{something}$$

That's because it contains incorrect syntax:

Typed in Result
$$\sqrt{x}$$ $$\sqrt{x}$$
$$\sqrt$$ $$\sqrt$$
$$\color{red} 72$$ $$\color{red} 72$$
$$\Color{red} 72$$ $$\Color{red} 72$$

It usually doesn't render whenever the $$\LaTeX$$ equation contains errors.

Oh yeah, it is the snap style theme. I switched to it from my usual dark theme, and it stopped rendering.

edit: I figured out why, and since I'm an admin now, I fixed it.

The actual theme component that renders the latex wasn't enabled in the snap style theme

Thank you!

PS But its behavior has changed; you now use $...$ instead of double $s.

As outlined here, single $ is for inline, and double $$ is for large blocks.

Yeah so I see, but it used to be two for inline and three for display.

(I'm pleased with the change, which is consistent with actual \TeX notation. But it's still worth documenting. Probably all the old posts are wrong now...)