********** MODEL NAME

vanderpol_9

********** MODEL NOTES


********** MODEL STATES

d/dt(x1) = a * x2
d/dt(x2) = -(x1) - b * (x1^2 - 1) * (x2)

********** MODEL PARAMETERS

a = 0.59
b = 0.594

********** MODEL VARIABLES

OUTPUT1 = x1
OUTPUT2 = x2

********** MODEL REACTIONS


********** MODEL FUNCTIONS


********** MODEL EVENTS



