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You can modify the configuration of the software using the 3 red
buttons near the status line, or from the menu Edit->Preferences.
The graph configuration screen has been presented in section
8.3, the cas configuration screen looks like
and the general configuration screen looks like
There are also commands to change the configurations, like
epsilon:=1e-10
The current session configuration can be saved using the File menu.
It will be used for the next session. The configuration is
saved in the file ~/.xcasrc
(or xcas.rc
under Windows), it can be edited with any text editor.
giac documentation written by Bernard Parisse