Kragujevac J. Math. 24 (2002) 85-94.

UNIVARIATE SHEPARD-LAGRANGE INTERPOLATION

Radu T. Trimbitas

Faculty of Mathematics and Computer Science, "Babe s-Bolyai" University, Cluj-Napoca, Romania

(Received July 15, 2002)

Abstract. In this paper we study the univariate Shepard-Lagrange interpolation operator


where (yn,k) are the interpolation nodes and (Lmf)(x;yn,k) is the Lagrange interpolation polynomial with nodes yn,k,yn,k+1,¼,yn,k+m. Then we give error estimations for various distribution of interpolation nodes.