Exponential linear combination.
Reference: Seber, G. A. F., Wild, C. J. 1989. Nonlinear Regression. John Wiley & Sons, Inc. p. 298
Number: 4
Names: p1, p2, p3, p4
Meanings: p1 = coefficient, p2 = unknown, p3 = offset, p4 = coefficient
Lower Bounds: none
Upper Bounds: none
nlf_explinear(x,p1,p2,p3,p4)
FITFUNC\EXPLINEA.FDF
Exponential