Author 
Comment/Response 
Enrico

04/21/07 10:17am
Hi!!
I've just started with math, so I apologize in advance if my question is too trivial.
Given a polynomial equation in one variable, I asked Mathematica for its numerical roots by NSolve operator.
I'd like to plot corresponding zeroes in a straithforward way, is it possible?
The strategy I've tried to pursue can be summerized as follows:
rr = z_Complex > {Re[z], Im[z]};
values=NSolve[poly==0,x],
%/.rr,
x./%
list=%
At this step, what I get for is a table having the following structure:
list={{a,b},{c,d},e,....} a,b,c,d,e being real, where of course "{a,b}" and "e" have replaced corresponding zeroes a+ib and e 
Now, in order to use the wellknown ListPlot command I need to transform elike quantities in a the corresponding pair {e,0} , could you help me?
ps. why doesn't "rr" work for real numbers as well??
Thanks a lot
Enr
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