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diff --git a/1592/CH6/EX6.1/Example_6_1.sce b/1592/CH6/EX6.1/Example_6_1.sce
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+//Scilab Code for Example 6.1 of Signals and systems by
+//P.Ramakrishna Rao
+//Sampling of signal
+clc;
+clear f n X X_delta w;
+fs=200;
+for f=-200:200
+    X(f+201)=5*[delta(f-75)+delta(f+75)];
+end
+figure(1);
+f=-200:200;
+plot2d3(f,X,-2);
+title('X(f)');
+xlabel('--->  f');
+w=1;
+n=-1;
+    for f=-275:275
+    X_delta1(f+276)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];
+    end
+n=n+1;
+    for f=-275:275
+    X_delta2(f+276)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];
+end
+n=n+1;
+    for f=-275:275
+    X_delta3(f+276)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];
+end
+X_delta=X_delta1+X_delta2+X_delta3;
+figure(2);
+f=-275:275;
+plot2d3(f,X_delta,-2);
+title('X_delta(f) at fs=200');
+xlabel('--->  f');
diff --git a/1592/CH6/EX6.1/Fig6_1_1.jpg b/1592/CH6/EX6.1/Fig6_1_1.jpg
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diff --git a/1592/CH6/EX6.1/Fig6_1_2.jpg b/1592/CH6/EX6.1/Fig6_1_2.jpg
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