Concept information
Término preferido
Dandelin spheres
Definición
-
In geometry, the Dandelin spheres are one or two spheres that are tangent both to a plane and to a cone that intersects the plane. The intersection of the cone and the plane is a conic section, and the point at which either sphere touches the plane is a focus of the conic section, so the Dandelin spheres are also sometimes called focal spheres.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Dandelin_spheres)
Concepto genérico
etiqueta alternativa (skos)
- focal spheres
En otras lenguas
-
francés
-
théorème belge sur la section conique
-
théorème de Dandelin-Quetelet
URI
http://data.loterre.fr/ark:/67375/PSR-P3XK66VD-F
{{label}}
{{#each values }} {{! loop through ConceptPropertyValue objects }}
{{#if prefLabel }}
{{/if}}
{{/each}}
{{#if notation }}{{ notation }} {{/if}}{{ prefLabel }}
{{#ifDifferentLabelLang lang }} ({{ lang }}){{/ifDifferentLabelLang}}
{{#if vocabName }}
{{ vocabName }}
{{/if}}