On inflection points of some type of quartics with a single triple point
Libuše Marková, Marie Švecová (1985)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
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Libuše Marková, Marie Švecová (1985)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
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Josef Kateřiňák (1987)
Aplikace matematiky
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Many programs for the hidden lines on a surface are known [1] but these programs are long and need a large memory of the computer. In this paper we show algorithms and the corresponding mini-program in BASIC which can be implemented on minicomputers with plotters or plotting displays. We map the surface in the parallel or central projections.
Dalibor Klucký, Libuše Marková (1985)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
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K. Truyk (1955)
Annales Polonici Mathematici
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Peter Giblin, Paul Holtom (1999)
Banach Center Publications
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A centrally symmetric plane curve has a point called it’s centre of symmetry. We define (following Janeczko) a set which measures the central symmetry of an arbitrary strictly convex plane curve, or surface in . We investigate some of it’s properties, and begin the study of non-convex cases.
J. Wasiutyński (1931)
Prace Matematyczno-Fizyczne
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