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

---
 40/CH9/EX9.2/Exa_9_2.sce | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100755 40/CH9/EX9.2/Exa_9_2.sce

(limited to '40/CH9/EX9.2')

diff --git a/40/CH9/EX9.2/Exa_9_2.sce b/40/CH9/EX9.2/Exa_9_2.sce
new file mode 100755
index 000000000..25164168a
--- /dev/null
+++ b/40/CH9/EX9.2/Exa_9_2.sce
@@ -0,0 +1,12 @@
+//Impulse invariant mappings
+//(a)converting H(s)=4s+7/s^2+5s+4 to H(z) using impulse invariance
+s=%s;
+z=%z;
+HS=(4*s+7)/(s^2+5*s+4);
+pfss(HS)
+ts=0.5;
+HZ=3*z/(z-%e^(-4*ts))+z/(z-%e^(-ts))
+//(b)converting H(s)=4s+7/s^2+5s+4 to H(z) using impulse invariance
+HS1=4/((s+1)*(s^2+4*s+5))
+pfss(HS1);
+HZ1=2*z/(z-%e^-ts)+(2*1.414*z^2*cos(-0.75*%pi)-2*1.414*(z/%e)*cos(0.5-0.75*%pi))/(z^2-2*(z/%e)*cos(0.5)+%e^-2)
-- 
cgit