Re: FFT in ROOT?

Nick van Eijndhoven (Nick@phys.uu.nl)
Tue, 08 Dec 1998 09:01:24 +0100


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,

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*----------------------------------------------------------------------* 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 *----------------------------------------------------------------------*