mokaude wrote: > But it's not really what I have to do. I have bad expressed myself. > > With the command \parabola(-1,0)(1,3), the parabola is drawn for x in > [-1;3]. > What I would like to do, is to draw the same parabola for x in [-2;5], > for example. > Is this possible with the \parabola command ? not really, in this case use \psplot Herbert