Talk:Forney algorithm

External links modified
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 * Added archive https://web.archive.org/web/20140630172526/http://web.stanford.edu/class/ee387/handouts/notes7.pdf to http://www.stanford.edu/class/ee387/handouts/notes7.pdf

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Cheers.— InternetArchiveBot  (Report bug) 06:38, 4 October 2017 (UTC)

Error?
The formula given on this page (and in the lecture it cites) omits the factor of x from the divisor (which the formal derivative needs to be scaled by for the algorithm to work). A version which worked for me is shown on http://site.iugaza.edu.ps/ahdrouss/files/2010/02/Reed_Solmen_Code1.pdf, page 6. That document also remarks that on a binary field, the special multiplication by i in the formal derivative reduces to either 0 or 1 because adding an element twice will eliminate it (2a = 0).

77.139.86.38 (talk) 23:31, 17 January 2022 (UTC)