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diff --git a/2279/CH2/EX2.2/Ex2_2.sce b/2279/CH2/EX2.2/Ex2_2.sce
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+//Example 2.2
+clf
+clear
+clc
+t=[-10:0.01:10];
+for i=1:length(t)
+    if t(i)>= -2 & t(i)<=4 then
+        x(i)=(t(i)+2)/6;
+        else
+            x(i)=0;
+        end
+end
+subplot(3,1,1);
+plot2d(t,x,rect=[-10 0 10 2]);
+xtitle("x(t) vs t","t in sec","x(t)");
+subplot(3,1,2);
+plot2d(t-1,x,rect=[-10 0 10 2]);
+xtitle("x(t+1) vs t","t in sec","x(t+1)");
+subplot(3,1,3);
+plot2d(t+1,x,rect=[-10 0 10 2]);
+xtitle("x(t-1) vs t","t in sec","x(t-1)");
+xset('window',1);
+subplot(3,1,1);
+plot2d(t/2,x,rect=[-10 0 10 2]);
+xtitle("x(2t) vs t","t in sec","x(2t)");
+subplot(3,1,2);
+plot2d(2*t,x,rect=[-10 0 10 2]);
+xtitle("x(t/2) vs t","t in sec","x(t/2)");
+subplot(3,1,3);
+plot2d(-t/3,x,rect=[-10 0 10 2]);
+xtitle("x(-3t) vs t","t in sec","x(-3t)");
+xset('window',2);
+subplot(3,1,1);
+plot2d(-(t-3),x,rect=[-10 0 10 2]);
+xtitle("x(3-t) vs t","t in sec","x(3-t)");
+subplot(3,1,2);
+plot2d(-(t-2)/2,x,rect=[-10 0 10 2]);
+xtitle("x(-2t+2) vs t","t in sec","x(-2t+2)");