# simple enzyme model to fit some data
c'=k1*(a0-c-2*d)*(b0-c-2*d)-k2*c-2*(k3*c*c-k4*d)
d'=k3*c*c-k4*d
init c=0,d=0
par a0=2,b0=3,k1=.02,k2=.002,k3=.02,k4=.004
@ total=70 
done