DTFT Computation Using MATLAB The function freqz can be used to compute the values of the DtfT of a sequence described as a rational function in e/ in the form of X(e/)p++…+e/oM 0+a1e-/o +.+d Ne JoN at a prescribed set of discrete frequency points o=@e Copyright C 2001, S K MitraCopyright © 2001, S. K. Mitra 9 DTFT Computation Using MATLAB • The function freqz can be used to compute the values of the DTFT of a sequence, described as a rational function in in the form of at a prescribed set of discrete frequency points j N N j j M M j j d d e d e p p e p e X e −  −  −  −   + + + + + + = .... .... ( ) 0 1 0 1 =  j e 