Solving nonlinear equations using Matlab

Xi
2020 6 4
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更新时间：2025 3 21
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Hi,
I have a function as y=f(x1,x2...xN) which contains N unknows. This equation is pretty complex and contains integral and exponential terms. Fortunately, I also have N curves and all of them can be fitted by this function with the same N variables. So is there any way using matlab to solve this equation? Thanks!

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Steradiant
Steradiant 2020-6-4
Have you already had a look into the fsolve()-function?
Xi
Xi 2020-6-4
Well, fsolve can solve the equation but what I need is a fitting. Note that each curve has many points so a least-square solving is needed.

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