3.0 Introduction Motivation of z-transform The Fourier transform does not converge for all sequences PIt is useful to have a generalization of the fourier transform→→z- transform In analytical problems the z-Transform notation is more convenient than the Fourier transform notation4 3.0 Introduction ◆Motivation of z-transform: ◆The Fourier transform does not converge for all sequences; ◆It is useful to have a generalization of the Fourier transform→z-transform. ◆In analytical problems the z-Transform notation is more convenient than the Fourier transform notation