This Emacs package provides two methods to insert mathematical symbols:
- A proper input method for efficient typing. Activate with
C-u C-\ unicode-math RET. Then TeX commands (e.g.,\alpha) are replaced automatically as you type with the corresponding Unicode character. - An interactive command,
unicode-math-input, which reads the TeX name of a symbol with completion and inserts the corresponding Unicode character.
In either case, all symbols provided by the unicode-math LaTeX package are available, with the same names.
The unicode-math input method is similar to Emacs’s built-in TeX,
but it differs in a couple of ways. First, it has a much larger
collection of characters, including various alphabets (Fraktur,
calligraphic, etc.) and combining accents (note you have to type, say,
\pi\hat to get π̂). Second, it does not include any sequence not
starting with a backslash, so it interferes less with normal typing.
The input method is customizable; see M-x customize-group RET
unicode-math-input RET for details (but note that, by the nature of
input methods, any options must be set before loading the package).
Of particular note is the possibility to define some additional
symbols by setting the variable unicode-math-input-extra-symbols.
Here is an example:
(setq unicode-math-input-extra-symbols
'(("frowny" . #x01F641) ; hex syntax...
("smiley" . ?🙂))) ; or character syntax