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diff --git a/3885/CH5/EX5.27/Ex5_27.sci b/3885/CH5/EX5.27/Ex5_27.sci new file mode 100644 index 000000000..36f588de1 --- /dev/null +++ b/3885/CH5/EX5.27/Ex5_27.sci @@ -0,0 +1,18 @@ +//control systems by Nagoor Kani A
+//Edition 3
+//Year of publication 2015
+//Scilab version 6.0.0
+//operating systems windows 10
+// Example 5.27
+
+clc;
+clear;
+s=poly(0,'s')//defines s as poly nomial variable
+K=poly(0,'K')
+h=syslin('c',(s^2+6*s+25)/(s*(s+1)*(s+2)))//the given transfer function assigned to variable h assume K=1
+scf()
+evans(h)
+//the characterstic equation is (s^3+(3+K)s^2+(2+6K)s)25K
+//put s=jw and equating real and imaginary parts to calculate K
+a=roots((-6*K^2)+5*K-6)
+disp(a,'the value of K is')
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