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diff --git a/842/CH3/EX3.3/Example3_3.sce b/842/CH3/EX3.3/Example3_3.sce
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+//clear//
+//Example3.3:Continuous Time Fourier Series Coefficients of 
+//a periodic signal x(t) = sin(Wot)
+clear;
+close;
+clc;
+t = 0:0.01:1;
+T = 1;
+Wo = 2*%pi/T;
+xt = sin(Wo*t);
+for k =0:5
+  C(k+1,:) = exp(-sqrt(-1)*Wo*t.*k);
+  a(k+1) = xt*C(k+1,:)'/length(t);
+  if(abs(a(k+1))<=0.01) 
+    a(k+1)=0;
+  end
+end
+a =a';
+ak = [-a,a(2:$)];