@vv 

Thanks a lot !!!
 

@Carl Love 

The first time I looked at the problem, I also came to this conclusion, but the possible answers are:
z=13,318-57,121i

z=4,565+58,765i

z= -4*pi/29[58sin(2)+116cos(2)-15] + i{8*pi/29[58sin(2)-29cos(2)+3]}

z= -8*pi/29[58sin(2)-29cos(2)+3] + i[4*pi/29[58sin(2)+116cos(2)-6]

z=2i*pi

@Carl Love 

It's Euler's number: e. Sorry!

@Bryon How do I do to replace my question?It is to edit the first question I asked or need to create a new topic?

@Carl Love 

As for my doubts, I wanna calculate i*j*i^{-1}  for each pair of elementsi and j in A.

@Carl Love 

First, I apologize, but I just changed the title when I answer the colleague. Inotchangedmy question. I`ll replices ir, ok?

I want to create a loop to calculate some things in that list. I can, for example do so:

for i from 1 to nops(A) do
   for j from 1 to nops(A) do
        i*j*i^{-1}
   end do;
end do;

@Carl Love 

Thank you!
What I think I associated the Matrix,

where we work with the element's position , 
then I wanted Do the same with the select command .Now I learned the right.
Thanks a lot!!!