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diff --git a/52/CH1/EX1.5.a/Example1_5_a.sce b/52/CH1/EX1.5.a/Example1_5_a.sce
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+//Example 1.5 (a)
+//To Determine Whether Given Signal is Periodic or not
+clear;
+clc ;
+close ;
+t=0:0.01:2;
+x1=exp(%i*6*%pi*t);
+subplot(1,2,1);
+plot(t,x1);
+xlabel('t');
+ylabel('x(t)');
+title('CONTINUOUS TIME PLOT');
+n=0:0.2:2;
+x2=exp(%i*6*%pi*n);
+subplot(1,2,2);
+plot2d3(n,x2);
+xlabel('n');
+ylabel('x(n)');
+title('DISCRETE TIME PLOT');
+//Hence Given Signal is Periodic with N=1
+\ No newline at end of file