[MAIN]
K=THETA_1*exp(ETA_K)
V=THETA_2*exp(ETA_V)
S1=V

[ODE]
d/dt(A_CENTRAL)=-K*A_CENTRAL
d/dt(A_OUTPUT)=K*A_CENTRAL
F=A_CENTRAL/S1

[ERROR]
CP=F
OBS_CP=CP*(EPS_PROP + 1)
Y=OBS_CP

[F]
A_CENTRAL=0.75
if (ARM==1) A_CENTRAL=0.85 # IF NOT ALLOWED
