Wiley signals and systems e book TLFe BO 345

xarnple 13.7 TIie coefficients can bc rcad clirelctly (coiiipart3 Example 13.1): I; = -2 k = I1 k=l x -2 ot lierwiw r[k)= 2-'(X(z>}= ( 13.3 7)