New Descriptions of Conics via Twisted Cylinders, Focal Disks, and Directors

DOI10.1080/00029890.2008.11920594zbMath1172.51009OpenAlexW22212166WikidataQ58120254 ScholiaQ58120254MaRDI QIDQ3621555

Tom M. Apostol, Mamikon A. Mnatsakanian

Publication date: 21 April 2009

Published in: The American Mathematical Monthly (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/00029890.2008.11920594

zbMATH Keywords

conic sectiontwisted cylinderhyperboloid of revolutionfocal propertyDandelin prooffocal disk

Mathematics Subject Classification ID

Elementary problems in Euclidean geometries (51M04) Euclidean analytic geometry (51N20) Analytic geometry, vector algebra (educational aspects) (97G70)

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