MATLAB: Run and plot complex function

Question

Hi

I am trying to run this code:

Omega=-pi:pi/100:pi;
X=exp(i*Omega)./exp(i*Omega)-0.8;
subplot(3,2,1), plot(Omega/pi,abs(X))
ylabel('|X|')
subplot(3,2,2), plot(Omega/pi,angle(X)*180/pi)
ylabel('Angle (X), degree')

However I got some errors and I am not sure why.

Regards.

Answer 1

You probably meant to put parentheses in the following line:

X=exp(1i*Omega)./exp(1i*Omega)-0.8;

Did you mean:

X=exp(1i*Omega)./(exp(1i*Omega)-0.8);