A parameterization of Box Lucas model.
Reference: Seber, G. A. F., Wild, C. J. 1989. Nonlinear Regression. John Wiley & Sons, Inc. p. 254
Number: 2
Names: a1, a2
Meanings: a1 = unknown, a2 = unknown
Lower Bounds: none
Upper Bounds: none
nlf_boxlucas2(x,a1,a2)
FITFUNC\BOXLUC2.FDF
Exponential