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diff --git a/3885/CH5/EX5.13/Ex5_13.sci b/3885/CH5/EX5.13/Ex5_13.sci new file mode 100644 index 000000000..342823134 --- /dev/null +++ b/3885/CH5/EX5.13/Ex5_13.sci @@ -0,0 +1,17 @@ +//control systems by Nagoor Kani A
+//Edition 3
+//Year of publication 2015
+//Scilab version 6.0.0
+//operating systems windows 10
+// Example 5.13
+
+clc;
+clear;
+s=poly(0,'s')//defines s as poly nomial variable
+h=syslin('c',(230/(s*(s+2)*(s+10))))//the value of K lies between 0 to 240 .the given transfer function assigned to variable h
+nyquist(h)
+show_margins(h,'nyquist')
+//calculation of K
+//when -0.00417K=-1the contour passes through -1+j0 and the corrospondig value of K is the limiting value of k for stabilty
+K=1/0.00417
+disp(K,'the value of K is')
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