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//Example 6.26 clc;clear; X=[36 -4+9.656*%i -4+4*%i -4+1.656*%i -4 -4-1.656*%i -4-4*%i -4-9.656*%i ]; x=round(clean(ifft(X))); disp(X,'X(k)='); disp(x,'x(n)=');