Nigel, I spend lots of time searching pdf version of C books But I can't find any thing good so far and for some Reason I do not see any 17mb file to download? Any idea? Andre -----Original Message----- I don't know if this is recent, or I've somehow managed never to notice before, but the book "Numerical Recipes in C" is now available online, free of charge. I know it's been mentioned here a few times, anyone involved in DSP might be interested! There are postscript and pdf versions available, the PDFs are at http://www.ulib.org/webRoot/Books/Numerical_Recipes/bookcpdf.html It's not for the faint of bandwidth- the PostScript version is about 17MB... Nigel -- Nigel Orr, Design Engineer nigel@axoninstruments.co.uk Axon Instruments Ltd., Wardes Road,Inverurie,Aberdeenshire,UK,AB51 3TT Tel:+44 1467 622332 Fax:+44 1467 625235 http://www.axoninstruments.co.uk -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.