How to set as default displaying imaginary part with [ImaginaryJ] (not with i) in "out" cells?
I think that StackExchange question is about something different. At any rate, you could achieve what you want with:
MakeBoxes[I, StandardForm] := "\[ImaginaryJ]"
and then:
Sqrt[-3.2 + I] 0.276234 + 1.81006 \[ImaginaryJ]
thanks a lot! :) can't this option configured in settings of the program? it's could be very comfortable to every new file.
There are several examples of how this is done on StackExchange:
https://mathematica.stackexchange.com/questions/17617/using-the-symbol-i-for-electrical-current/17618#17618
My advice is also not do this.
