4 Replies Latest reply: Jan 19, 2004 12:00 AM by purple-disabled RSS

    Compute DTFT of discrete time signal.

      I need help in solving the DTFT of the following signal: x[n]=(0.5)^n cos 4n u[n]. I attached the problem. I have never used Mathcad for discrete solutions. Any help will be greatly appreciated. Thank you.