That is great , but I have a question . Can we add a command to draw the Riemann surface of any complex function ? . I can do that online Riemann - Wolfram|Alpha by typing Riemann surface (w(z)) , but I have no idea how to do that on the software !
I'm not on my mathematica computer right now, altough if it work in wolfram alpha you can always do
?"WOLFRAM COMMAND" it'll then do what wolfram would have done, and it'll show you the command line. (It work with simple stuff like integrate and derivative) Maybe it won't work with something more complex, but it's worth a try!