About: Nine-point conic     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : owl:Thing, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)
QRcode icon
http://dbpedia.demo.openlinksw.com/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FNine-point_conic&invfp=IFP_OFF&sas=SAME_AS_OFF

In geometry, the nine-point conic of a complete quadrangle is a conic that passes through the three diagonal points and the six midpoints of sides of the complete quadrangle. The nine-point conic was described by Maxime Bôcher in 1892. The better-known nine-point circle is an instance of Bôcher's conic. The nine-point hyperbola is another instance. Bôcher used the four points of the complete quadrangle as three vertices of a triangle with one independent point: In 1912 Maud Minthorn showed that the nine-point conic is the locus of the center of a conic through four given points.

AttributesValues
rdfs:label
  • Nine-point conic (en)
  • Коника девяти точек (ru)
  • Коніка дев'яти точок (uk)
rdfs:comment
  • Коніка дев'яти точок повного чотирикутника — це конічний перетин, що проходить через три діагональні точки і шість середин сторін повного чотирикутника. Конічний перетин дев'яти точок описав 1892 року. Більш відоме коло дев'яти точок є частковим випадком коніки Бохера. Інший частковий випадок — . (uk)
  • Коника девяти точек полного четырёхугольника — это коническое сечение, проходящее через три диагональные точки и шесть середин сторон полного четырёхугольника. Коническое сечение девяти точек описал Максим Бохер в 1892 году. Более известная окружность девяти точек является частным случаем коники Бохера. Другой частный случай — . (ru)
  • In geometry, the nine-point conic of a complete quadrangle is a conic that passes through the three diagonal points and the six midpoints of sides of the complete quadrangle. The nine-point conic was described by Maxime Bôcher in 1892. The better-known nine-point circle is an instance of Bôcher's conic. The nine-point hyperbola is another instance. Bôcher used the four points of the complete quadrangle as three vertices of a triangle with one independent point: In 1912 Maud Minthorn showed that the nine-point conic is the locus of the center of a conic through four given points. (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Nine_point_conic.svg
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
Link from a Wikipage to an external page
sameAs
dbp:wikiPageUsesTemplate
thumbnail
has abstract
  • In geometry, the nine-point conic of a complete quadrangle is a conic that passes through the three diagonal points and the six midpoints of sides of the complete quadrangle. The nine-point conic was described by Maxime Bôcher in 1892. The better-known nine-point circle is an instance of Bôcher's conic. The nine-point hyperbola is another instance. Bôcher used the four points of the complete quadrangle as three vertices of a triangle with one independent point: Given a triangle ABC and a point P in its plane, a conic can be drawn through the following nine points:the midpoints of the sides of ABC,the midpoints of the lines joining P to the vertices, andthe points where these last named lines cut the sides of the triangle. The conic is an ellipse if P lies in the interior of ABC or in one of the regions of the plane separated from the interior by two sides of the triangle, otherwise the conic is a hyperbola. Bôcher notes that when P is the orthocenter, one obtains the nine-point circle, and when P is on the circumcircle of ABC, then the conic is an equilateral hyperbola. In 1912 Maud Minthorn showed that the nine-point conic is the locus of the center of a conic through four given points. (en)
  • Коніка дев'яти точок повного чотирикутника — це конічний перетин, що проходить через три діагональні точки і шість середин сторін повного чотирикутника. Конічний перетин дев'яти точок описав 1892 року. Більш відоме коло дев'яти точок є частковим випадком коніки Бохера. Інший частковий випадок — . (uk)
  • Коника девяти точек полного четырёхугольника — это коническое сечение, проходящее через три диагональные точки и шесть середин сторон полного четырёхугольника. Коническое сечение девяти точек описал Максим Бохер в 1892 году. Более известная окружность девяти точек является частным случаем коники Бохера. Другой частный случай — . (ru)
prov:wasDerivedFrom
page length (characters) of wiki page
foaf:isPrimaryTopicOf
is Link from a Wikipage to another Wikipage of
is foaf:primaryTopic of
Faceted Search & Find service v1.17_git139 as of Feb 29 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (378 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software