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Re: 2d fit problem


 The classical Fit function does the job if you want 
 a linear combination of functions, for example:

   \sum a_ij x^i y^j 

 if you want something nonlinear, as:

   \sum cos( a_j x^j) exp(b_j y^j)

 you should use the Standard Math Package:

    Statistics`NonlinearFit

 For NonlinearFit you can find some information on an older 
 more simpler version on MathSource.

 Andrei

______________________________________________________________________
  Andrei Constantinescu               constant at athena.polytechnique.fr   
                                                                       
  LMS Ecole Polytechnique                  tel:   (33)-1-69.33.33.30
  91128 PALAISEAU cedex - FRANCE           fax:   (33)-1-69.33.30.26    

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