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+//Scilab Code for Example 7.19 of Signals and systems by
+//P.Ramakrishna Rao
+//Convolution of two signals
+clc;
+clear;
+clear x y n;
+x=[2,-1,1,0,2];
+y=[1,0,-1,2];
+n=-1:3;
+c = gca();
+c.y_location = "origin";
+c.x_location = "origin";
+plot2d3(n,x,-5);
+title('x(k)')
+xlabel('k')
+figure(1);
+n=0:3;
+c = gca();
+c.y_location = "origin";
+c.x_location = "origin";
+plot2d3(n,y,-5);
+title('y(k)')
+xlabel('k')
+z=conv(x,y);
+figure(2);
+n=-1:6;
+c = gca();
+c.y_location = "origin";
+c.x_location = "origin";
+plot2d3(n,z,-5);
+title('Convoluted signal     z(t)')
+xlabel('t')
diff --git a/1592/CH7/EX7.19/Fig7_19_3.jpg b/1592/CH7/EX7.19/Fig7_19_3.jpg
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