Three-parameter logarithm function.
Reference: Ratkowksy, David A. 1990. Handbook of Nonlinear Regression Models. Marcel Dekker, Inc. 4.3.32
Number: 3
Names: a, b, c
Meanings: a = coefficient, b = coefficient, c = coefficient
Lower Bounds: none
Upper Bounds: none
nlf_log3p1(x,a,b,c)
FITFUNC\LOG3P1.FDF
Logarithm