t=[0:63]*2*pi/8;
x=exp(i*t);
clg

subplot(211);
plot([0:63],real(x));
v=axis;
axis([0 64 v(3) v(4)]);
title('real part of x');
xlabel('index k');

subplot(212);
plot([0:63],imag(x));
v=axis;
axis([0 64 v(3) v(4)]);
title('imaginary part of x');
xlabel('index k');
 
print -deps ts0

% note  if the program acts strangely, type axis and  run again