Browsing by Subject "Conics and quadrics"

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    On the Implicit Equation of Conics and Quadrics Offsets
    (MDPI, 2021-07-28) Díaz Toca, Gema M.; Caravantes, Jorge; Fioravanti, Mario; González Vega, Laureano; Ingeniería y Tecnología de Computadores
    A new determinantal representation for the implicit equation of offsets to conics and quadrics is derived. It is simple, free of extraneous components and provides a very compact expanded form, these representations being very useful when dealing with geometric queries about offsets such as point positioning or solving intersection purposes. It is based on several classical results in “A Treatise on the Analytic Geometry of Three Dimensions” by G. Salmon for offsets to non-degenerate conics and central quadrics.