Im experimenting with different computer algebra systems trying to plot a function of the kind
$$f:\Bbb R\to\Bbb C$$
in 3D, but I dont know a simple and direct solution in any CAS to this kind of plot. To context the question I will leave an elementary function and I will be glad to see some example, the simpler and direct the best, to plot it in 3d in any CAS.
Let $f:\Bbb R\to\Bbb C$ such that $x\mapsto i^x$
My interest is mainly in free software like Sage, Sympy, Maxima or Axiom. I tried too Geogebra but it doesnt support in any way complex numbers so I cant plot the above in any direct way.
Thank you in advance.