just a very short question:
Is Fast-Fourier-Tranform or convolution implemented in root, or has anyone
a c++ library which can be easily linked? 
     thanks,
            Florian Schopper
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Florian Schopper                     office: Max-Plank-Institut fuer
                                             extraterrestrische physik
Ludwig-Merk str. 3                           Postfach 1603
80805 Muenchen                               Giessenbachstr.
phone: 49/89/3226157                         Garching bei Muenchen
                                             phone: 49/89/3299 3625
                                               fax: 49/89/3299 3569
                                            e-mail: fls@mpe-garching.mpg.de
                                              http://home.cern.ch/~fschoppe
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