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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /257/CH8/EX8.28/example_8_28.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '257/CH8/EX8.28/example_8_28.sce')
| -rw-r--r-- | 257/CH8/EX8.28/example_8_28.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/257/CH8/EX8.28/example_8_28.sce b/257/CH8/EX8.28/example_8_28.sce new file mode 100644 index 000000000..7e26f1770 --- /dev/null +++ b/257/CH8/EX8.28/example_8_28.sce @@ -0,0 +1,23 @@ +//determining critical value of K
+s=%s
+syms K
+m=s^4+18*s^3+121*s^2+360*s+400-2*K^2
+cof_a_0 = coeffs(m,'s',0);
+cof_a_1 = coeffs(m,'s',1);
+cof_a_2 = coeffs(m,'s',2);
+cof_a_3 = coeffs(m,'s',3);
+
+r=[cof_a_0 cof_a_1 cof_a_2 cof_a_3]
+
+n=length(r);
+routh=[r([4,2]);r([3,1])];
+routh=[routh;-det(routh)/routh(2,1),0];
+t=routh(2:3,1:2); //extracting the square sub block of routh matrix
+routh=[routh;-det(t)/t(2,1),0]
+disp(routh,"rouths tabulation=")
+routh(3,1)=0 //For marginaly stable system
+
+disp("k marginal is")
+k=sqrt(200)
+disp(k)
+
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