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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /104/CH6/EX6.7 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '104/CH6/EX6.7')
| -rwxr-xr-x | 104/CH6/EX6.7/6_7.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/104/CH6/EX6.7/6_7.sce b/104/CH6/EX6.7/6_7.sce new file mode 100755 index 000000000..7ccfebc63 --- /dev/null +++ b/104/CH6/EX6.7/6_7.sce @@ -0,0 +1,21 @@ +//determining critical value of K
+s=%s
+syms K
+m=s^3+3*K*s^2+(K+2)*s+4
+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
+sys=syslin('c',s*(3*s+1)/(s^3+2*s+4))
+k=kpure(sys)
+disp(k,"K(marginal)=")
\ No newline at end of file |