For rendering, you might have a look at ConTeXt, because I recall it has an option whereby Unicode super- and sub-scripts can be displayed over each other without extra processing.
> On 14 Jan 2020, at 06:44, via Unicode <unicode@unicode.org> wrote: > > Thanks for your reply. I think actually LaTeX is not a good option for our > purpose, because we want to create and disseminate datasets which are easy to > use and do not require any software or special font installation. Thus, we’ll > live with the little bit uglier version. > Anyway, thanks! > Thomas >
