Conic Section
Pronunciation: /ˈkɒn.ɪk ˈsɛk.ʃən/ Explain
A conic section is a 2dimensional figure formed by
intersecting
the surface of a 3dimensional double
cone
with a
plane
(see figure 1).^{[2]} Four 2dimensional figures that can be formed are the
circle,
ellipse, parabola, and hyperbola. Conic sections were studied as early as 200 BC by
Apollonius of Perga.


Figure 2: Table of Conics, Cyclopaedia, 1728. Click on picture to see full size.


References
 McAdams, David E.. All Math Words Dictionary, conic section. 2nd Classroom edition 201501084799968. pg 43. Life is a Story Problem LLC. January 8, 2015. Buy the book
 conic section. merriamwebster.com. Encyclopedia Britannica. MerriamWebster. Last Accessed 6/25/2018. http://www.merriamwebster.com/dictionary/conic section. Buy the book
 Drew, Rev. W. H.. A geometrical treatise on conic sections. 4th edition. www.archive.org. MacMillan and Company. 1869. Last Accessed 6/25/2018. http://www.archive.org/stream/cu31924031271509#page/n6/mode/1up. Buy the book
 Hamilton, Rev. Henry Parr. An Analytical System of Conic Sections. 5th edition. article 7980. www.archive.org. John W. Parker. 1863. Last Accessed 6/25/2018. http://www.archive.org/stream/ananalyticalsys00hamigoog#page/n93/mode/1up/search/conic. Buy the book
Cite this article as:
McAdams, David E. Conic Section. 12/21/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/c/conicsection.html.
Image Credits
Revision History
12/21/2018: Reviewed and corrected IPA pronunication. (
McAdams, David E.)
6/25/2018: Removed broken links, updated license, implemented new markup, updated GeoGebra apps. (
McAdams, David E.)
10/11/2008: Changed definition to refer to the 'surface' of a double cone. (
McAdams, David E.)
7/7/2008: Corrected link errors. Corrected spelling (
McAdams, David E.)
4/28/2008: Initial version. (
McAdams, David E.)