1 files changed, 0 insertions, 36 deletions
diff --git a/1340/CH8/EX8.8/8_8.sce b/1340/CH8/EX8.8/8_8.sce
deleted file mode 100755
index 590c0bbce..000000000
--- a/1340/CH8/EX8.8/8_8.sce
+++ /dev/null
@@ -1,36 +0,0 @@
-clear; clc;
-xdel(winsid());  //close all windows
-s = poly(0,"s");
-G = syslin('c',(s+1.5)/(s*(s+1)*(s+10)));
-zeroes = roots(numer(G));disp(zeroes,"zeroes are:");
-poles = roots(denom(G));disp(poles,"poles are:");
-po = 1.52;disp(po,"percentage overshoot:");
-zeta = -log(po/100)/sqrt(%pi^2+(log(po/100))^2);//calculation for damping ratio
-disp(zeta,"damping ratio :");
-evans(G,100);//max gain =100
-v = [-12 2 -10 10];//fitting the axes
-mtlb_axis(v)
-sgrid([zeta],[0],20);//displays the zeta = 0.8 line
-curve_handles=datatipGetEntities()//gets the entities required
-curve_handles.visible='off';
-curve_handles.visible='on';
-//aproximate values of gain and position can be found out from the plot by sliding datatip
-//here there are 3 points satisfying the criteria for zeta = 0.8 line
-printf("for zeta =0.8 line points on the root locus are:");
-printf("\n -0.87+ j0.66 and -0.87- j0.66 with gain = 7.36");
-printf("\n -1.19+ j0.9  and -1.19- j0.9  with gain = 12.79");
-printf("\n  and -4.6+ j3.45 and -4.6- j3.45 with gain = 39.64");
-breakin = -2.8;
-Kbreakin = 27.91;
-breakaway = [-0.62 -4.4];
-Kbreakaway = [2.511 28.89];
-disp(Kbreakin," gain =",breakin,"break-in point at");
-disp(Kbreakaway,"with respective gains = ",breakaway,"break-away points at");
-wn1 = 0.66;disp(wn1,"Natural frequency for points -0.87+j0.66 and -0.87-j0.66 = ");
-wn2 = 0.9;disp(wn2,"Natural frequency for points -1.19+j0.9 and -1.19-j0.9 = ");
-wn3 = 3.45;disp(wn3,"Natural frequency for points -0.87+j0.66 and -0.87-j0.66 = ")
-
-
-
-
-