Add periodic roots for complex exponent solver

Solving following equation returning only one solution:

var expr = MathS.FromString("e^(i*x) - 0.5");
var sol = MathS.SolveEquation(expr, "x");

But actually this equation has inifinite number of periodic roots (example from WolframAlpha): https://www.wolframalpha.com/input/?i=e^ix+%3D+0.5

[MomoDeve]

Is this the answer we are looking for?

Yes, we just need to implement it and handle all corner cases =)

[WhiteBlackGoose]

Fixed