qsymbols sets up a number of mnemonic and compact abbreviations for math symbols from LATEX and the packages amssymb and stmaryrd, which it loads. The abbreviations all start with the backquote character |`|. Some are a single character, some a more complicated pattern, but always the idea is to use abbreviations that hint at the visual appearance of the symbol. Finally it is possible for the user to add more abbreviations of the simpler categories.
You can retrieve qsymbols as well as the amssymb and stmaryrd packages by anonymous ftp from all CTAN archives in directory /tex-archivemacroslatexcontrib supported/2 (each package has its own subdirectory).
The following sections describe the various classes of symbols that are loaded.