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+//Example 3.32
+//Program to plot the result of the given sequence
+//X[k]=[1,2,2,1,0,2,1,2]
+//y[n]=x[n/2] for n=even,0 for n=odd 
+clear;
+clc ;
+close ;
+X=[1,2,2,1,0,2,1,2];
+x = fft (X , 1);
+y=[x(1),0,x(2),0,x(3),0,x(4),0,x(5),0,x(6),0,x(7),0,x(8),0];
+Y = fft (y , -1);
+//Display sequence Y[k] and in command window
+disp(Y,"Y[k]=");
+//Plotting the sequence Y[k]
+k=0:1:15;
+a = gca ();
+a.y_location ="origin";
+a.x_location ="origin";
+plot2d3(k,Y,2);
+poly1=a.children(1).children (1);
+poly1.thickness=2;
+xtitle('Plot of Y(k)','k','Y(k)');
+\ No newline at end of file