I want to do curve fitting of some laboratory results with a model.
The model which I want to use can not explained by a single function,
but is explained by a series of differential equations.
In this case, I do not know how to apply LMFnlsq.
It is very helpful if you give any advice.
(I am applying "fminsearch" to this problem so far, but
the description of "fminsearch" mentions that this code is
not suitable to this kind of problems.)