Talk:Darboux derivative

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Mathematics rating:	Start Class	Low Priority	Field: Analysis
Please update this rating as the article progresses, or if the rating is inaccurate. Click to show/hide comments. Please add to or update the comments to suggest improvements to the article. Geometry guy 20:50, 1 June 2007 (UTC)

[edit] History?

I may be mistaken, but is this really due to Darboux? I know Cartan studies such things in his Groupes Finis... series. Of course, the standard of referencing was somewhat lower in those days. Can anyone track down the original paper? I tried some time ago, but the trail ended with Cartan. Silly rabbit 20:58, 1 June 2007 (UTC)