• Published : 2002.10.01


In this paper we present an error bound for cubic spline approximation of conic section curve. We compare it to the error bound proposed by Floater [1]. The error estimating function proposed in this paper is sharper than Floater's at the mid-point of parameter, which means the overall error bound is sharper than Floater's if the estimating function has the maximum at the midpoint.


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  1. Helix approximations with conic and quadratic Bézier curves vol.22, pp.6, 2005,