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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/unesp/370542
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dc.contributor.authorFabre, Claude-
dc.date2010-06-15T15:30:11Z-
dc.date2013-03-21T17:53:06Z-
dc.date2013-03-21T17:53:06Z-
dc.date2013-03-21T17:53:06Z-
dc.date.accessioned2016-10-26T18:07:53Z-
dc.date.available2016-10-26T18:07:53Z-
dc.identifierhttp://objetoseducacionais2.mec.gov.br/handle/mec/22997-
dc.identifier.urihttp://acervodigital.unesp.br/handle/unesp/370542-
dc.descriptionEducação Superior::Ciências Exatas e da Terra::Matemática-
dc.descriptionA quadric surface is the zero set of a quadratic expression in three variables—here, the 3D Cartesian coordinates x, y and z . There are precisely 17 types of quadrics, but some of them are degenerate and others are imaginary. The nonparabolic family is given by [(x²/a²)+i(y²/b²)+j(z²/c²)+d] where i, j and d can be -1, 0 or 1. The parabolic family (which overlaps the nonparabolic family somewhat) is given by [(x²/a²)+i(y²/b²)+kz+d]. This Demonstration shows the chosen polynomial, identifies its type, and plots the zero set. The checkbox toggles between the nonparabolic and parabolic families. All 17 types are represented-
dc.languageeng-
dc.publisherWolfram Demonstration Project-
dc.relationWhichQuadricIsWhich.nbp-
dc.rightsDemonstration freeware using MathematicaPlayer-
dc.sourcehttp://demonstrations.wolfram.com/WhichQuadricIsWhich/-
dc.subjectEducação Superior::Ciências Exatas e da Terra::Matemática::Geometria Algébrica-
dc.subjectSurfaces-
dc.titleWhich Quadric Is Which?-
dc.typeoutro-
dc.description2Graphical display of the 17 quadrics forms and their respective equations.-
dc.description3This demonstration needs the "MathematicaPlayer.exe" to run. Find it in http://objetoseducacionais2.mec.gov.br/handle/mec/4737-
Appears in Collections:MEC - Objetos Educacionais (BIOE) - OE

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