Terms related to ellipses

center

constant sum

diameter

directrix, directrices

eccentricity

focus, foci

major axis

minor axis

semimajor axis

semiminor axis

vertex, vertices


More advanced terms are defined at a site by Xah Lee.

main concepts page main history page main problems page


© 1996-2008 Institute for Studies in Educational Mathematics

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http://www.edmath.org/MATtours/ellipses/

Last updated: 10 June, 2008

MATtours project team led by Larry Copes


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