In this paper an interative approach for constructing the Hermite interpolant introduced by Cirillo and Hormann (2018) for the Floater-Hormann family of interpolants is extended and generalised. In particular, we apply that scheme to produce an effective barycentric rational trigonometric Hermite interpolant using the basis function of the interpolant introduced by Berrut (1988). In order to give an easy construction of such an interpolant we compute the differentation matrix analytically and we conclude with various examples and a numerical study of the rate of convergence at equidistant nodes.
翻译:在本文件中,Cirillo和Hormann(2018年)为Floater-Hormann的Interporats家族对Cirillo和Hormann(2018年)为Floater-Hormann Interporats提出的建造Hermite Interporats的中间体的中间体的中间体的中间体的中间体的中间体方法得到扩展和概括,特别是,我们运用这一方法,利用Berrut(1988年)提出的中间体的基本功能,形成一个有效的巴以中心的合理三边体Hermite Interporats(Hermite)的中间体的中间体。为了方便地构建这样一个中间体的中间体,我们分析地计算了不同的矩阵,我们用各种例子和数字研究来总结等近节点的趋同率。