Talk:Digital root
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"Digital root" is the term given by Mathworld. See also (sequence A010888 in OEIS). I for one think that repeated digital sum and digital sum should be merged into this article. They can be listed as synonyms if anyone can cite professional mathematics papers using them. Anton Mravcek 22:38, 9 February 2006 (UTC)
Does anyone have a strong opinion on whether 0 or 9 makes more sense as a digital root? 0 is better for calculations, and more elegant, but you can't reduce any further than 9 with the standard "add up the digits" process. Is there a convention? Should this be mentioned in the article? ~ CZeke 23:15, 21 July 2006 (UTC)
