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+//Example 3.23 (d)
+//MAXIMA SCILAB TOOLBOX REQUIRED FOR THIS PROGRAM
+//N point DFT of x(n)=1, 0<=n<=N/2-1
+clc;
+syms n k N;
+x=1;
+X=symsum(x*exp(-%i*2*%pi*n*k/N),n,0,(N/2)-1);
+disp(X,'X(k)=');
+\ No newline at end of file