Solving sqrt(i)=z, one or two solutions?

[sasa]

(10-26-2018 02:47 PM)parisse Wrote:  I disagree completly, sqrt is uniquely defined, in maths and in software. Trying to do something else would be confusing for students and not realistic in software.

Your general attitude so far was that students current knowledge level and ability of understanding is not relevant for CAS. But now, with just fundamentals in complex analysis, it starts to be relevant...

With Wolfram Alpha, all upper stated issues was covered precisely. As well, even Riemann surface visualisation is introduced (though, still as beta, if I do not mistaken). I doubt the Prime is ready to deal properly with multivalued functions...

What level of complex analysis is anyway implemented in CAS for Prime?