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On the Focal Curve of Conic Pencils in I_2 (CROSBI ID 105695)

Prilog u časopisu | izvorni znanstveni rad

Beban-Brkić, Jelena On the Focal Curve of Conic Pencils in I_2 // KoG : znanstveno-stručni časopis Hrvatskog društva za konstruktivnu geometriju i kompjutorsku grafiku, 2 (1997), 35-42-x

Podaci o odgovornosti

Beban-Brkić, Jelena

engleski

On the Focal Curve of Conic Pencils in I_2

Within the classification of conic pencils in the isotropic plane, which has been carried out using methods of analytical geometry and linear algebra, it is specially interesting to observe the curve of isotropic focuses, which it is shown to be a 3rd order curve. The properties of this very curve, for the discussed, most common subtype of conic pencils, are determined. It is shown that, referring to the selection of the fundamental points, it is possible to determine its shape, and to classify it according to the Newton's principle. The discussed cases of conic pencils with its focal curves are illustrated with the figures drawn by Mathematica.

isotropic plane; pencil of conic sections; quadratic form; focal curve; Newton's classification

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Podaci o izdanju

2

1997.

35-42-x

objavljeno

1331-1611

Povezanost rada

Matematika