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02/23/05 3:54pm

I know how to use nonlinearfit to fit only one function, does anybody know if we can use nonlinearfit to fit several functions simultaneously?

For example, I have the data of two functions, (x,y1) and (x,y2), and also I have the model functions y1(x) and y2(x) with some parameters (a, b) in both y1(x) and y2(x).I want to fit y1(x) and y2(x) simultaneously.

Who can tell me if mathematica can do these!

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