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Hello,

in Mathematica 8:

  • I use NMaximize to obtain global maximum of function f
  • Function f consists among many of one Fourier and one InverseFourier call
  • All direct calls to f are OK, but when it comes for "symbolic" evaluation of f by NMaximize the InverseFourier calls fail even for very little dimensional vectors

Precise error is:

InverseFourier::fftl: Argument ....vector.... is not a non-empty list or rectangular array of numeric quantities.

I've found almost identical problem here, page 43, http://www-uxsup.csx.cam.ac.uk/courses/Mathematica_numerics/paper_2.pdf

Please HELP ME.....

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5 
 You come here to ask for help with commercial software? Call 1-800-Wolfram. – Felipe Voloch Jul 30 2011 at 19:16
I came here to ask for help. – cartesius Jul 30 2011 at 19:21
1 
 I'm not sure MO is the best place for a question about Mathematica... – Yemon Choi Jul 30 2011 at 20:21
2 
 StackOverflow has a very knowledgeable and helpful community of Mathematica users. I would try the question there. In fact I myself have done so in the past and am a very satisfied customer! – José Figueroa-O'Farrill Jul 31 2011 at 0:25

closed as too localized by Felipe Voloch, Zev Chonoles, Gerald Edgar, Andres Caicedo, Simon Thomas Jul 30 2011 at 22:20

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