display all results of sqrt()



Hello to all maximaniacs,

I am using wxMaxima 0.8.2 and I am a newbie to maxima. Here's my prob:

I want to display all results of the function sqrt():

%i1 2+sqrt(4);
%o1 4

I want to display also the result 0, because sqrt(4) can be 2 or -2. I
have searched the help and the web but I found nothing about it.
Probably you have the answer.

THX for your help

Karsten Grasemann