Output of Asymptote command when there are no Asymptotes
Geogebra commonly returns "undefined" when a command is applied to an object to which the command is not applicable. For instance, applying Center to a parabola causes Geogebra to return "undefined".
In the case of Asymptote, if this command is applied to a circle (which obviously has no asymptotes) the command does not return "undefined", it simply returns nothing.
For consistency, shouldn't Geogebra return "undefined" in _all_ cases when a command is applied to an object to which it is not applicable instead of sometimes return "undefined" and other times, as in the case of asymptote applied to a circle, return nothing ?
Comments welcome :-)