Unicode Macro Table is a Vim script that provides the needed functionality to easily register insert mode macros for useful Unicode characters as well as initial mapping tables for a mostly math oriented background.
Simple source the script inside your .vimrc to register the needed macros. You may then use any macro name listed inside the first part of the script file with a backslash in front of it. Therefore just typing e.g. "alpha beta gamma" in insert mode would give you the Greek letters you want.
You may customize every mapping table to your linkings or add new ones. If you create new tables or extend the ones already present I would be grateful if you could send me a copy of your work, for everyone to benefit from.
Vim is a text editor first released by Bram Moolenaar in 1991 for the Amiga computer. Vim was created as an extended version of the vi editor, with many additional features designed to be helpful in editing program source code; its full name is Vi IMproved.
While Vim is cross-platform, it is most popular on Unix-like operating systems.
Released under a software license compatible with the GNU General Public License, Vim is free and open source software. The program's license includes some charityware clauses.
Like vi, Vim's interface is based not on menus or icons but on commands given in a text user interface; its GUI mode, gVim, adds menus and toolbars for commonly used commands but the full functionality is still expressed through its command line mode.
For many users learning Vim may be difficult and slow initially, but once the basics are understood they progress quickly and editing becomes more efficient. To facilitate this, Vim has a built-in tutorial for beginners. There is also the Vim Users' Manual that details the basic and more advanced Vim features. This manual can be read from within Vim, or found online.
Vim also has a built-in help facility (using the :help command) that allows users to query and navigate through commands and features.