plot am equation with complex number

Hi All; I want to plot an equation: Y=2*exp(-ky)*exp(-iky); Can anyone help me with this!

Answer 1

[Image Analyst]

Is this what you want:

k = 2;
y = linspace(-3,3,500);
i = sqrt(-1);
Y=2*exp(-k*y).*exp(-i*k*y); 
realy = real(Y);
imagy = imag(Y);
plot(realy, imagy, 'b*-');
grid on;