3 files changed, 9 insertions, 0 deletions
diff --git a/104/CH9/EX9.9/9_9.sce b/104/CH9/EX9.9/9_9.sce
new file mode 100755
index 000000000..1d4bf9271
--- /dev/null
+++ b/104/CH9/EX9.9/9_9.sce
@@ -0,0 +1,9 @@
+//effect of addition of zeroes
+s=%s;
+sys1=syslin('c',1/(s*(s+1)*(2*s+1)))//taking T1=1,T2=2
+nyquist(sys1)
+show_margins(sys1,'nyquist') 
+sys2=syslin('c',(3*s+1)/(s*(s+1)*(2*s+1)))//Td=3
+//nyquist(sys2)
+//show_margins(sys2,'nyquist')  
+printf("these two plots show that addition of poles increases stability") 
+\ No newline at end of file
diff --git a/104/CH9/EX9.9/9_9a.jpeg b/104/CH9/EX9.9/9_9a.jpeg
new file mode 100755
index 000000000..098639770
--- /dev/null
+++ b/104/CH9/EX9.9/9_9a.jpeg
diff --git a/104/CH9/EX9.9/9_9b.jpeg b/104/CH9/EX9.9/9_9b.jpeg
new file mode 100755
index 000000000..86feb8a3d
--- /dev/null
+++ b/104/CH9/EX9.9/9_9b.jpeg