Re: complex function fitting?

*To*: mathgroup at smc.vnet.net*Subject*: [mg98364] Re: complex function fitting?*From*: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>*Date*: Wed, 8 Apr 2009 02:50:11 -0400 (EDT)*References*: <grcgjg$pml$1@smc.vnet.net>

Ned, It looks like Mathematica already can do this: In[673]:= data = Table[{y = RandomComplex[], RandomReal[{0.9, 1.1}] y^2 + RandomReal[{0.9, 1.1}] y + 1 + I}, {20}]; In[672]:= Fit[data, {1, x, x^2}, x] Out[672]= (0.988738 + 0.984148 I) + (1.0509 - 0.0357287 I) x + (1.0156 + 0.0497595 I) x^2 Cheers -- Sjoerd On Apr 6, 11:04 am, "Ned Lieb" <okty.gy.... at gmail.com> wrote: > Does anyone know how I could extend the domain of Mathematica's > function-fitting functions so I can use complex-valued data?