1 files changed, 29 insertions, 23 deletions
diff --git a/1592/CH9/EX9.3/example_9_3.sce b/1592/CH9/EX9.3/example_9_3.sce
index 9d6385185..bf4e494b9 100755
--- a/1592/CH9/EX9.3/example_9_3.sce
+++ b/1592/CH9/EX9.3/example_9_3.sce
@@ -1,23 +1,29 @@
-//Scilab Code for Example 9.3 of Signals and systems by
-//P.Ramakrishna Rao
-//Convolution of two signals
-clc;
-clear;
-n=1;
-for t=-5:0.1:5
-    x(n)=-2*u(t-0.5)+2*u(t-1.5);
-    y(n)=(t+1)*u(t+1)-(t+1)*u(t-2);
-    n=n+1;
-end
-z=conv(x,y);
-t=-5:0.1:5;
-plot2d2(t,x,5);
-title('x(t)');
-figure(1);
-t=-5:0.1:5;
-plot2d(t,y,2);
-title('y(t)');
-figure(2);
-t=-10:0.1:10;
-plot2d(t,z,6);
-title('Convolution');
+//Scilab Code for Example 9.3 of Signals and systems by
+//P.Ramakrishna Rao
+//Convolution of two signals
+clc;
+clear;
+function [y]=u(t)
+    if t>=0
+    y=1
+else y=0
+    end
+endfunction
+n=1;
+for t=-5:0.1:5
+    x(n)=-2*u(t-0.5)+2*u(t-1.5);
+    y(n)=(t+1)*u(t+1)-(t+1)*u(t-2);
+    n=n+1;
+end
+z=conv(x,y);
+t=-5:0.1:5;
+plot2d2(t,x,5);
+title('x(t)');
+figure(1);
+t=-5:0.1:5;
+plot2d(t,y,2);
+title('y(t)');
+figure(2);
+t=-10:0.1:10;
+plot2d(t,z,6);
+title('Convolution');
+\ No newline at end of file