Results 271 to 280 of about 36,511 (307)
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Refining cubic parametric B-splines
Computing, 2007Cubic parametric B-splines are positive, compactly supported functions, introduced in the context of shape-preserving approximation of curves by \textit{P. Lamberti} and \textit{C. Manni} [Adv. Comput. Math. 20, No. 1--3, 105--127 (2004; Zbl 1054.41003)]. These functions are special parametric curves having piecewise cubic components.
Costantini P, MANNI, CARLA
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Generalized geometric cubic splines
Proceedings of CG International '96, 2002A constructive approach has been adopted to build interpolatory and freeform cubic spline curves with a more general continuity than /spl beta/-continuity. This method provides not only a large variety of very interesting shape controls like biased, point and interval tensions but, as a special case, also recovers a number of spline methods like /spl ...
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Cubic splines on uniform meshes
Communications of the ACM, 1970A very simple procedure is presented for constructing cubic splines, periodic or nonperiodic, on uniform meshes. Arcs of two cubics suffice to construct a basis of cardinal splines. An algorithm is given which requires only minimal storage and computation and permits easy trade-off of one against the other.
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Chordal Cubic Spline Quasi Interpolation
2012This paper studies cubic spline quasi-interpolation of parametric curves through sequences of points in any space dimension. We show that if the parameter values are chosen by chord length, the order of accuracy is four. We also use this chordal cubic spline quasi interpolant to approximate the arc length derivatives and the length of the parametric ...
Paul Sablonnière +2 more
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Approximation by integro cubic splines
Applied Mathematics and Computation, 2006zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Cubic Splines and Histosplines
1991In chapter 2 we provided an explanation for the failure of many methods intended to find time- and age-dependent mortality rates from stage structured population data. It was also suggested that an effective method of mortality estimation would be a more local method than those so far suggested.
Simon N. Wood, Roger M. Nisbet
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Collocation with Quadratic and Cubic Splines
IMA Journal of Numerical Analysis, 1982Khalifa, A. K. A., Eilbeck, J. C.
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1999
A spline function is a curve constructed from polynomial segments that are subject to conditions of continuity at their joints. The chapter describes the algorithm of the cubic smoothing spline and its use in estimating trends in time series. Considerable effort has been devoted over several decades to developing the mathematics of spline functions ...
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A spline function is a curve constructed from polynomial segments that are subject to conditions of continuity at their joints. The chapter describes the algorithm of the cubic smoothing spline and its use in estimating trends in time series. Considerable effort has been devoted over several decades to developing the mathematics of spline functions ...
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2000
A cubic polynomial curve in the xy-plane, (x1 (t), x2(t)), whose cubic term has a coefficient of 0 reduces to a parabola in this special case; but a cubic polynomial cannot represent other conic section curves such as a circular arc, an elliptic arc, or a segment of an hyperbola. It is an interesting fact, however, that an elliptic or hyperbolic arc in
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A cubic polynomial curve in the xy-plane, (x1 (t), x2(t)), whose cubic term has a coefficient of 0 reduces to a parabola in this special case; but a cubic polynomial cannot represent other conic section curves such as a circular arc, an elliptic arc, or a segment of an hyperbola. It is an interesting fact, however, that an elliptic or hyperbolic arc in
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