I need to write roman numbers in MathJax. I've tried almost every way. But, then I decided to copy the symbol itself. But it looks very ugly.

For example,

$$\displaystyle \mathcal {D}^{{\left(II \right)}}_n $$

I tried LaTex syntax. \rom. But, unfortunately it doesn`t work.


1 Answer 1


Do you mean \mathrm{IX} perhaps? $\mathrm{IX}$?

There's a reason why the font family is called "Roman".

  • 2
    $\begingroup$ Or the alternative but more archaic {\rm IX}. $\endgroup$ Dec 23, 2019 at 20:23

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