[CAS] plotfunc() parameters

[DrD]

[CAS]
y:=x^3-3*x+2;
plotfunc(y,x=(-4)..4,y=(-4)..4);

Entering the (undocumented) optional parameters for x-range and y-range seems to work. Other parameters, such as for color, labels, grid, line type, etc., may not be supported.

The XCAS help protocol, in general, doesn't seem to work on the prime, for this command.