Square Roots of Complex Numbers (CAS)

[Helge Gabert]

Yes, exactly! We're on the same page.

And look at sqrt(2^i) -> sqrt(2^i), so that is what I would expect from a CAS. Now that symbolic expression can be used again in subsequent symbolic manipulations, whereas the forced, numerical output from sqrt(1+i) is worthless (in a symbolic re-use sense).