These are not the only
symbols that can be generated for graphics output but are the symbols
that can be drawn by the hardware.
SAS/GRAPH can draw other symbols.
Note: Not all devices are capable
of drawing every symbol. If a particular hardware symbol is not available
or not to be used (as indicated by the value of SYMBOLS), the symbol
is generated by the software. If the value of the SYMBOL device parameter
in the device entry is N or the NOSYMBOL graphics option is used,
the value of SYMBOLS is ignored.