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diff --git a/257/CH10/EX10.8/example_10_8.sce b/257/CH10/EX10.8/example_10_8.sce
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+++ b/257/CH10/EX10.8/example_10_8.sce
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+s=%s;
+G=100/(s*(s+8))
+T=G/(1+G)
+disp(T,"T = ")
+
+//compare denominator with s^2+2*zeta*omegaN + omegaN^2
+omegaN=10
+zeta=0.4;
+disp(1/(2*zeta*sqrt((1-zeta^2)))," Mr = ")
+disp(omegaN*sqrt(1-2*zeta^2)," omegaN = ")
+