Help System (web edition)

SYSTEM <parameter>=<value> 
changes the value of certain system parameters. Accepted parameters
are, for example, scale_check, accuracy, results.
The effects of SYSTEM are valid in the current session only.
For permanent changes the SYS command must be used.
Example: SYSTEM accuracy=16

Also macros denoted by M<character>=<text> can be changed and more
such macros defined.  Examples: SYSTEM M8=PRINT CUR+1,END
SYSTEM M9=/MY_APPL! / `!' means that /MY_APPL is written and activated.
Settings by the SYSTEM command are not permanent. They are valid during
the current Survo session only.
For permanent changes, use the /SURVO-SETUP sucro, for example.

SYSTEM <parameter> 
shows the current value of <parameter>.
CLEAR SYSTEM <pathname_of_SURVO.APU>,<parameter> 
shows the value of system <parameter> in SURVO.APU.

Certain tutorials change some system parameters. To ensure restoring
values of those parameters after the tutorial, two special forms
of the SYSTEM command are available.
SYSTEM SAVE
saves system parameters
videomode, accuracy, help_window, gplot_layout, eout
and the size of the main window (# of lines and columns)
in a text file SUR_SYS.SYS on the path of temporary Survo files.
SYSTEM RESTORE
restores the setting saved by SYSTEM SAVE.
  C = More information on control operations