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//breakaway points
s=%s
sys=syslin('c',(s+4)/(s*(s+2)))
evans(sys)
syms s
d=derivat(sys)
n=numer(d)
a=roots(n)    //a=breakaway points
disp(a,"breakaway points=")
for i=1:2
    K=-a(i,1)*(a(i,1)+2)/(a(i,1)+4)
    disp(a(i,1),"s=")
    disp(K,"K=")
end
printf("if K is positive breakaway point lies on RL or else on CRL")