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Question: Nonlinear least squares

Question:Nonlinear least squares

Jak 15 Maple
fitting curvefitting leastsquares regression
February 22 2020
2

Hi,

I'm wanting to use nonlinear least squares fittting to minimise the error between two curves.

One curve, f1 , I know the parameters for and the other, f2 , I do not, which is what I am wanting to find through this methood.

f1=(2*x)/(3+5*x)  

f2=a1*(2-exp(-a2*x)) 

Any help would be muchly appricated, thank you in advance! 
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