In 2002 there was a short discussion on this list on a convolution
interface for GSL and Brian wrote it down in fft/TODO
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| http://sourceware.org/ml/gsl-discuss/2001/msg00330.html
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Has anyone implemented that or parts of it by now?

Greetings,
Jochen
-- 
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        (Part 3 you find in my messages before fall 2003.)