From 7bc77cb1ed33745c720952c92b3b2747c5cbf2df Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Sat, 3 Feb 2018 11:01:52 +0530
Subject: Added new code

---
 3889/CH5/EX5.9/Ex5_9.sce | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 3889/CH5/EX5.9/Ex5_9.sce

(limited to '3889/CH5/EX5.9/Ex5_9.sce')

diff --git a/3889/CH5/EX5.9/Ex5_9.sce b/3889/CH5/EX5.9/Ex5_9.sce
new file mode 100644
index 000000000..f24448eb1
--- /dev/null
+++ b/3889/CH5/EX5.9/Ex5_9.sce
@@ -0,0 +1,23 @@
+//Example 5.9
+//page 327
+//Control Systems: Principles and Design 
+//M Gopal, Second Edition, Tata McGraw-Hill
+//Chapter:Concepts of Stability: Routh Stability Array
+
+xdel(winsid())//close all graphics Windows
+clear;
+clc;
+//transfer function
+s=%s;
+P=s*(s^2+s+1)*(s+4);
+k=poly(0,'k')
+//routh array
+disp('Routh Array')
+r=routh_t(1/P,k)
+disp(r)
+disp('Solving for positive values,')
+disp(r($-1,1))
+mprintf('%g >K >0, for stability',kpure(1/P))
+
+
+
-- 
cgit