HTML entities

[Christoph Päper]

> Martin J. Dürst via Unicode <unicode at unicode.org>:
> 
> Interesting idea to use the <rp> (Ruby parenthesis) element. But I'm sure there's a better (semantically more appropriate) way to use markup (+maybe styling) to hide the "^" but let it appear when in plain text.

I don’t think there’s one in HTML

Following the precedence set by U+2064 Invisible Plus (e.g. between integer and vulgar fraction) and U+2062 Invisible Times (e.g. between letter constants or variables), Unicode could add X+2065 Invisible Exponentiation (or Invisible Opening Parenthesis and Invisible Closing Parenthesis).