Plotting poles and zeros

hello how do plot pole and zeros for example signal y(n)=cos((pi/3)*n)*u(n)

thanks

Answer 1

[pragnan nadimatla]

As per my understanding you want to plot poles and zeros for a signal.You can use matlab inbuilt function zplane to plot poles and zeros of discrete time signal in MATLAB.

Please refer the following documentation on how to use zplane:

Zero-pole plot for discrete-time systems - MATLAB zplane - MathWorks India