They are available in most fonts with reasonable-or-better Unicode coverage (https://en.wikipedia.org/wiki/Unicode_subscripts_and_supersc...). 1, 2 and 3 are available in ISO-8859-1 so can sometimes be used in 8-bit-only text, but I'd use them with care in that context.
To type them easily you'll usually need composition (sometimes called chording) support. Some Linux (and other Unix) distributions still have this built in by default, though last time I used Linux for much desktop use it seemed to be fading from common availability, otherwise you'll have to hunt for another method. On Windows I use http://wincompose.info/ (here [atlgr][^][1] produces “¹”, for instance, in the default settings) which is useful for a number of other things (I first started using it for accented characters like á on a UK keyboard). If you have a keyboard with programmable function keys then you could use its customisation tool to map some of them to produce the super-script (or sub-script, or other) characters you commonly want.
For less convenient typing, use your OS's Character Map or similar tool.
On Android, unless you have a different keyboard in use which doesn't support this of course, long press on the number on the touch keyboard gives superscripts as an option.
> On Android, unless you have a different keyboard in use which doesn't support this of course, long press on the number on the touch keyboard gives superscripts as an option
chucks iPad out the window
We only get the standard shift character as an option. E.g. 1 shows !, 2 shows @, etc.
I’d use superscripts all the time if it was on the keyboard. Anyone know if MacOS can do it? Other than pressing the weird globe key and searching.
Easiest way I can think of is that you can use text substitution (System Settings -> Keyboard -> Text Replacements...) to set a string of characters that should substitute to the superscript characters (you can look it up with the globe key to set it up initially). So you could make e.g. [1] map to ¹, [2] map to ², etc. You could also use this trick on i(Pad)OS (Settings -> General -> Keyboard -> Text Substitutions). In fact, the substitutions should sync across if you're logged into the same Apple ID.
The “UniChar” app, among others, can be used as an alternative keyboard “language” to access Unicode symbols with an interface similar to the emoji picker. Includes “favorites” and “recently used” sections.
To type them easily you'll usually need composition (sometimes called chording) support. Some Linux (and other Unix) distributions still have this built in by default, though last time I used Linux for much desktop use it seemed to be fading from common availability, otherwise you'll have to hunt for another method. On Windows I use http://wincompose.info/ (here [atlgr][^][1] produces “¹”, for instance, in the default settings) which is useful for a number of other things (I first started using it for accented characters like á on a UK keyboard). If you have a keyboard with programmable function keys then you could use its customisation tool to map some of them to produce the super-script (or sub-script, or other) characters you commonly want.
For less convenient typing, use your OS's Character Map or similar tool.
On Android, unless you have a different keyboard in use which doesn't support this of course, long press on the number on the touch keyboard gives superscripts as an option.