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20 May 2025

diffhist Ellipse 17:01 −192 Jacobolus talk contribs (Undid revision 1291342468 by 192.234.159.166 (talk) – this self-published paper about an approximate perimeter formula is not that helpful to general readers here. if you publish a peer-reviewed version which becomes widely cited, perhaps it could be added to Perimeter of an ellipse#Approximations) Tag: Undo
diffhist Ellipse 16:25 +192 192.234.159.166 talk (→External links: This link demonstrates scientific relevance of the subject (geometric ellipses) to other sciences, such as astronomy, and is an important reference which earns being a staple of this page. Its mathematical validity is demonstrable, and from a reputable source.) Tag: Reverted