Hi there, Although there is supposed to be a howto on Fitting with TMinuit, I 'd like to ask where I can find a really simple example (not minexam.C) which uses TMinuit, and which has more helpful comments. Maybe there is some of the Howto already done. Is there any possibility to access it ? I would like to fit some z=f(x,y) function where the x and y values are not equally spaced. So I tried using the minexam-example using a function that returns chisquare, but the result of the program is that just nothing is done. Something is lacking or there is a gross error in my code (most likely). thanks for any help, Mats P.S: something aside ROOT. I tried to do the fitting using Maple, but Maple V, Rel 3 doesn't support non-linear fitting (rational functions). Any suggestions ?
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