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This mode is activated automatically when you enter a command
that has a graphical output. You can activate it with the yellow
geo button (click on the yellow hist
key to go back to the history).
In this mode you can interact with the history but graphically,
e.g. add or move a point. It is also possible to define scalar
parameters, then add objects depending on this parameters and
move the parameter dynamically to see the effect on the graphical objects.
You can define the window parameters using the red configuration geo
button or sometimes directly for example for zooming.
Subsections
giac documentation written by Bernard Parisse