I have a need to use the Unicode character 0x2091, a subscript e, rather than using markup for formatting the subscript. However, the usual-suspect fonts don't appear to include a glyph for this Un...

Unicode does not support making arbitrary characters into superscripts. There are pre-encoded superscript characters; they are different characters you can convert to.

Попробуйте все же используя Unicode subscripts and superscripts Вот как пример вашей функции ... В итоге имеем x² + x³ + 1 = y²

Как в окне правильно вывести степени, т.е. не x^2, а чтобы двойка находилась выше?

How do I replace a Unicode numeral subscript or superscript (eg, ₂) with the corresponding numeral (ie, 2) using regular expressions? I can of course replace each of them separately, but that is ten lines of code... I am implementing this in Perl but that should not really matter.

Usually you do this with formatting. Unicode's selection of superscript and subscript characters doesn't stem from the need or desire to cover whole alphabets but rather to enable specific use cases, e.g. writing IPA. Furthermore, if you're using a good OpenType font it can also support proper subscripts for arbitrary characters at the font level (where a glyph isn't simply scaled down by the ...

The chr () function takes an integer and outputs the corresponding Unicode codepoint in a string. The above defines a hexadecimal number and adds 1 to produce your desired 2080 range Unicode character.

I am trying to read formatted text from an Excel file. It consists of a series of reactions, and some reactants have subscripts, while others have superscripts. I am struggling to distinguish between

The Unicode superscript (and subscript) code points are for backwards compatibility with older character sets and are essentially deprecated. They are not intended to be complete, or be used to format text. If you need to use superscript characters, the recommended (and most complete/compatible) approach is to use a markup language.

It should be noted that the default UI font for Windows (and WPF) supports neither subscripts nor superscripts prior to Windows 8.