Andrzey Baranski@ESA 08/23/2000 04:04 PM First let me thank you, to all who took their time to replay to my question, but particularly to Bob for his, as usual, in depth explanation. I've just got hold of September issue of Dr.Dobb's Journal, and there's an article by Michael Pashea " Microcontrollers & CORDIC Methods", The source code ( cordic.txt and cordic.zip ) is at http://www.ddj.com/ftp/2000/2000_09/ Regards Andrzej (Andy) W.Baranski -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics