clc
clear all
close all
s = tf('s')
G = (50*(s+10))/((s^2+s+10)*(s+20))
%bode(G)
C = 30
L1 = G*C
%bode(L1)

% k = 0.5
W = feedback(L1,1)
bode(W)
% figure(2)
step(W)

fm = 43.4