On Tue, 8 Dec 1998, Nick van Eijndhoven wrote: > Florian Schopper wrote: > > > > Hey Rooters, > > > > 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 > > > > Hi Florian, > Since I use ROOT also for my teaching I might soon need fast > Fourier transforms in C++. > Currently I am not aware of existing stuff, so I have in mind > to make my own ones (based on Numerical recipes) just like > I recently did for the Chi2 probab. function and the Gamma > functions etc... > I can't guarantee any timescale, but my intention is to work > on it during the coming Xmass holidays. > Of course if anyone has already something, I would be interested > to know. > -- > > Cheers, > > _/_/ _/ _/ _/_/_/_/ _/ _/ > _/ _/ _/ _/ _/ _/ _/ > _/ _/ _/ _/ _/ _/_/ > _/ _/_/ _/ _/ _/ _/ > _/ _/ _/ _/_/_/_/ _/ _/ > > > *----------------------------------------------------------------------* > Dr. Nick van Eijndhoven Department of Subatomic Physics > email : nick@phys.uu.nl Utrecht University / NIKHEF > tel. +31-30-2532331 (direct) P.O. Box 80.000 > tel. +31-30-2531492 (secr.) NL-3508 TA Utrecht > fax. +31-30-2518689 The Netherlands > WWW : http://www.phys.uu.nl/~nick Office : Ornstein lab. 172 > ---------------------------------------------------------------------- > tel. +41-22-7679751 (direct) CERN PPE Division / ALICE exp. > tel. +41-22-7675857 (secr.) CH-1211 Geneva 23 > fax. +41-22-7679480 Switzerland > CERN beep : 13+7294 Office : B 160 1-012 > *----------------------------------------------------------------------* > I am using FFT routines I developped in C/C++ from several sources. They were tested and checked. Let me just comment them and you will get them attached to my next mail. Faouzi PS: some bugs exist in the C-version of the Numerical recipes
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