arg() crashes the emulator

[Han]

(02-24-2015 06:19 AM)Angus Wrote:  Yes, lname() sounds very promising. Thank you very much. I will play with that during weekend.

Do note that it only returns the names of variables that do not have any value stored in them. So for example, if you had previously created a program that exported the variable 'fx' (just as an example) and then you created an expression such as:

g:=2*fx+4*y-3*x (here, y and x are variables that have nothing stored in them)

then lname(g) would return [ x y ] and not [ fx x y ]