B_:={y1, x1, x2}$
FOR EACH EL_ IN B_ DO DEPEND EL_,T$

B1_:={a, b, d, c}$
 %NUMBER OF STATES
NX_:=2$
 %NUMBER OF INPUTS
NU_:=0$
 %NUMBER OF OUTPUTS
NY_:=1$

C_:={df(x1, t) = a*x1 + b*x1 - x2*c*x1,
df(x2, t) = -a*b*x2 + d*x2*x1,
y1 = x1}$
FLAG_:=1$
SHOWTIME$
DAISY()$
SHOWTIME$
END$
