x=0:128;
y1=real(exp(2*%pi*%i*x/32));
subplot(3,1,1);
plot2d(x,y1,rect=[0,-2,128,2]);
y2=real((0.5+0.5*%i)*exp(2*%pi*%i*x/32));
subplot(3,1,2);
plot2d(x,y2,rect=[0,-2,128,2]);
y3=real((1.5+0.5*%i)*exp(2*%pi*%i*x/32));
subplot(3,1,3);
plot2d(x,y3,rect=[0,-2,128,2]);