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diff --git a/257/CH7/EX7.36/example_7_36.sce b/257/CH7/EX7.36/example_7_36.sce
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+++ b/257/CH7/EX7.36/example_7_36.sce
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+ss=%s
+G=64/(s*(s+9.6))
+H=1
+T=G/(1+G*H)
+
+omegaN=sqrt(64)
+disp(omegaN,"omegaN = ")
+zeta=9.6/(2*omegaN)
+disp(zeta,"zeta = ")
+omegaD=omegaN*(sqrt(1-zeta^2))
+theta=atan(sqrt(1-zeta^2)/zeta)
+disp(theta," theta = ")
+
+c=((1-(%e^(-zeta*omegaN*t))/sqrt(1-zeta^2)*sin(omegaD*t+theta)))
+disp(c, "c = ")
+
+Tp=%pi/omegaD
+disp(Tp," Tp = ")
+disp(4/(zeta*omegaN)," Ts = ")
+