28.1.45 ExpAssoc

Function

y=y_0+A_1(1-e^{-x/t_1})+A_2(1-e^{-x/t_2})

Brief Description

Two-phase exponential association equation.

Sample Curve

CFF Image144.jpg

Parameters

Number: 5

Names: y0, A1, t1, A2, t2

Meanings: y0 = offset, A1 = amplitude, t1 = width, A2 = amplitude, t2 = width

Lower Bounds: t1 > 0, t2 > 0

Upper Bounds: none

Script Access

nlf_expassoc(x,y0,A1,t1,A2,t2)

Function File

FITFUNC\EXPASSOC.FDF

Category

Origin Basic Functions, Exponential