How do I show LaTeX renders in Tex.SE?

$\dfrac{1}{2}$ and $$\dfrac{1}{2}$$ seem to work for other StackExchange, but not Tex StackExchange. Any clue why?

I would guess LaTeX rendering to be most important for the Tex StackExchange, so I'm assuming there's some other way to render LaTeX in questions and answers. Help would be appreciated.

  • 2
    I've marked as a dupe: I suspect you didn't know the terms to search for. Briefly, the 'LaTeX' you see in web pages is rendered by MathJaX, which is not TeX but parses a modified subset of the math mode syntax. Here, we want to see actual TeX output if there is a need to have an image at all.
    – Joseph Wright Mod
    Jan 11, 2023 at 8:56


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