How to represent a superscript slash with Unicode?
No. On general grounds, we can be pretty sure that if such a character existed, it would be in the Superscripts and Subscripts block (not all superscripts are there, but the odds are that if any superscripts will be added, they will be placed there).
So you need some higher-level protocol, as you usually do, when you need superscripts beyond a fairly limited repertoire. Unicode is about encoding characters, not about layout and mathematical expressions.
Assuming http://en.wikipedia.org/wiki/Unicode_subscripts_and_superscripts is accurate, the answer is no.
Well unicode is full of characters. The meaning is up to its interpretation.
For superscript slash you can use:
- Canadian Syllabics Final Acute 123⁴⁵⁶ᐟ⁷⁸⁹
- Right Raised Omission Bracket 123⁴⁵⁶⸍⁷⁸⁹
- Musical Symbol Repeated Figure-1 123⁴⁵⁶ð⁷⁸⁹
For subscript slash you can use:
- Right Low Paraphrase Bracket 123₄₅₆⸝₇₈₉
If you have other solutions please comment and I will update my answer.
A helpful site to find special unicode characters: shapecatcher