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authorprashantsinalkar2017-10-10 12:27:19 +0530
committerprashantsinalkar2017-10-10 12:27:19 +0530
commit7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch)
treedbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /257/CH8/EX8.18/example_8_18.sce
parentb1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff)
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diff --git a/257/CH8/EX8.18/example_8_18.sce b/257/CH8/EX8.18/example_8_18.sce
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+s=%s
+// C=s^4+10*s^3+36*s^2+70*s+75 characteristic equation//
+F=(s-2)^4+10*(s-2)^3+36*(s-2)^2+70*(s-2)+75 //shifting the origin with respect to s=-2//
+disp(routh_t(F))
+r=coeff(F)
+routh=routh_t(F)
+n=length(r)
+c=0;
+for i=1:n
+if (routh(i,1)<0)
+c=c+1;
+ end
+end
+ if(c>=1)
+ printf("there are %d roots to the right of s=-2 line",c+1)
+ else printf("system is stable")
+ end