Remarks on the cubic surface with an osculating cone
نویسندگان
چکیده
منابع مشابه
Algorithms on cone spline surfaces and spatial osculating arc splines
Developable surfaces are of considerable importance to many industry applications, e.g. sheet metal forming processes. The objective of this paper is to provide algorithms on the approximation of developable surfaces with pieces of right circular cones. Special emphasis is devoted to practical choices of free parameters and to error estimation. Furthermore, a new algorithm for the approximation...
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● L = φ∗O(1) ● Li = L −Ei, the strict transform of a line through Pi = φ(Ei) ● Lij = 2L − (∑En) + Ei + Ej, the strict transform of a conic through the four points Pn with n ≠ i, j ● Bi = 3L− (∑En)−Ei, the strict transform of a cubic curve through all six points Pn, with a node at Pi. Let h be the class of a hyperplane in the embedding X ⊂ P3. For any line ` on X, the hyperplanes containing ` gi...
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ژورنال
عنوان ژورنال: Časopis pro pěstování matematiky a fysiky
سال: 1927
ISSN: 1802-114X
DOI: 10.21136/cpmf.1927.120830