From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2294/CH1/EX1.22/EX1_22.sce | 94 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100755 2294/CH1/EX1.22/EX1_22.sce

(limited to '2294/CH1/EX1.22')

diff --git a/2294/CH1/EX1.22/EX1_22.sce b/2294/CH1/EX1.22/EX1_22.sce
new file mode 100755
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--- /dev/null
+++ b/2294/CH1/EX1.22/EX1_22.sce
@@ -0,0 +1,94 @@
+//Example 1.22<i>
+//Find whether the given signal is causal or not.
+clear all;
+clc;
+t=-10:10;
+a=.5;
+for i=1:length(t)
+    if t(i)<0 then
+        x1(i)=0;
+    else
+        x1(i)=exp(a.*t(i));
+    end
+end
+causal=%t;
+for i=1:length(t)
+    if t(i)<0 & x1(i)~=0 then
+        causal=%f;
+    end
+end
+disp(causal,"The statement that the system is causal is:");
+//Example 1.22<ii>
+//Find whether the given signal is causal or not.
+clear all;
+clc;
+t=-10:10;
+for i=1:length(t)
+    if t(i)>0 then
+        x2(i)=0;
+    else
+        x2(i)=exp(-2.*t(i));
+    end
+end
+causal=%t;
+for i=1:length(t)
+    if t(i)<0 & x2(i)~=0 then
+        causal=%f;
+    end
+end
+disp(causal,"The statement that the system is causal is:");
+//Example 1.22<iii>
+//Find whether the given signal is causal or not.
+clear all;
+clc;
+t=-10:10;
+c=2;
+for i=1:length(t)
+    x3(i)=sin(c.*t(i));
+    end
+causal=%t;
+for i=1:length(t)
+    if t(i)<0 & x3(i)~=0 then
+        causal=%f;
+    end
+end
+disp(causal,"The statement that the system is causal is:");
+//Example 1.22<iv>
+//Find whether the given signal is causal or not.
+clear all;
+clc;
+n=-10:10;
+for i=1:length(n)
+    if n(i)<-3 | n(i)>2 then
+        x1(i)=0;
+    else
+        x1(i)=1;
+    end
+    end
+causal=%t;
+for i=1:length(n)
+    if n(i)<0 & x1(i)~=0 then
+        causal=%f;
+    end
+end
+disp(causal,"The statement that the system is causal is:");
+//Example 1.22<v>
+//Find whether the given signal is causal or not.
+clear all;
+clc;
+n=-10:10;
+for i=1:length(n)
+    if  n(i)>-2 then
+        x2(i)=(1/2)^n(i);
+    else
+        x2(i)=0;
+    end
+    end
+causal=%t;
+for i=1:length(n)
+    if n(i)<0 & x2(i)~=0 then
+        causal=%f;
+    end
+end
+disp(causal,"The statement that the system is causal is:");
+
-- 
cgit