What is the current Unicode stance on subscripts and superscripts for mathematical use?

Hans Åberg haberg-1 at telia.com
Tue Jun 23 03:36:53 CDT 2020

Indeed, and in the days of ASCII, one felt that all characters could be encoded with 7-bit bytes. But that is not really legible without some post-processing.

I use it in a program that uses plain text as input, which turns out to be very convenient, apart from that superscripts and subscripts might look better.

> On 23 Jun 2020, at 01:09, Marius Spix <marius.spix at web.de> wrote:
> This can already be done by rich text. Unicode includes some
> superscript characters like ², ³ or ° (the degree sign is a superscript
> version of the white circle U+25CB) for compatibility with legacy
> character sets and phonetic transcriptions (in some languages the tone
> is important). Unicode’s superscript characters are very limited and
> nested superscript is not supported at all. For some units and common
> chemical terms which often appear in plain text in non-scientific
> contexts (like m³, kg·m/s², °C, CO₂ or Na⁺) the Unicode superscript
> characters are sufficient, however.

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