Monomolecular growth model.
Reference: Seber, G. A. F., Wild, C. J. 1989. Nonlinear Regression. John Wiley & Sons, Inc. p. 328
Number: 3
Names: A, xc, k
Meanings: A = amplitude, xc = center, k = rate
Lower Bounds: A > 0.0
Upper Bounds: none
nlf_mnmolecular(x,A,xc,k)
FITFUNC\MMOLECU.FDF
Exponential