1 files changed, 18 insertions, 0 deletions
diff --git a/104/CH6/EX6.5/6_5.sce b/104/CH6/EX6.5/6_5.sce
new file mode 100755
index 000000000..1ee2e5848
--- /dev/null
+++ b/104/CH6/EX6.5/6_5.sce
@@ -0,0 +1,18 @@
+//elements in one row of rouths tabulations are all zero
+s=%s;
+m=s^5+4*s^4+8*s^3+8*s^2+7*s+4;
+disp(m)
+r=coeff(m)
+n=length(r)
+routh=routh_t(m)
+disp(routh,"rouths tabulations=")
+c=0;
+for i=1:n
+if (routh(i,1)<0)
+c=c+1;
+end 
+end
+if(c>=1)
+printf("system is unstable")
+else printf("system is marginally stable")
+end
+\ No newline at end of file